L4931ABxx L4931Cxx
Ver y low drop voltage regulators with inhibit
Features
Very low dropout voltage (0.4 V) Very low quiescent current (Typ. 50 A in off mode, 600 A in on mode) Output current up to 250 mA Logic-controlled electronic shutdown Output voltages of 2.7; 3.3; 3.5; 5; 8; 12 V Automotive Grade product: 2.7 V, 3.3 V, 3.5 V VOUT only in SO-8 package Internal current and thermal limit Only 2.2 F for stability Available in 1 % (AB) or 2 % (C) selection at 25 C Supply voltage rejection: 70 dB typ. for 5 V version Temperature range: -40 to 125 C This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. It requires only a 2.2 F capacitor for stability allowing space and cost saving. The L4931 is available as Automotive Grade in SO-8 package only, for the options of output voltages whose commercial Part Numbers are shown in the Table 19 on page 34 (order codes). These devices are qualified according to the specification AEC-Q100 of the Automotive market, in the temperature range -40 C to 125 C, and the statistical tests PAT, SYL, SBL are performed.
PPAK DPAK SO-8 TO-220 TO-92
Description
The L4931ABxx L4931Cxx are very Low Drop regulators available in TO-220, SO-8, DPAK, PPAK and TO-92 packages and in a wide range of output voltages. The very low drop voltage (0.4 V) and the very low quiescent current make them particularly suitable for low noise, low power applications and specially in battery powered systems. A TTL compatible shutdown logic control function is available in PPAK and SO-8 packages.
Table 1.
Device summary
Part numbers
L4931ABXX27 L4931CXX27 L4931ABXX33
L4931CXX33 L4931ABXX35 L4931CXX35
L4931ABXX50 L4931CXX50 L4931ABXX80
L4931CXX80 L4931ABXX120 L4931CXX120
August 2008
Rev 17
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Contents
L4931ABxx - L4931Cxx
Contents
1 2 3 4 5 6 7 8 9 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
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L4931ABxx - L4931Cxx
List of figures
List of figures
Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Line regulation vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Dropout voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Supply current vs input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Supply current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Short circuit current vs dropout voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 SVR vs input voltage signal frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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List of tables
L4931ABxx - L4931Cxx
List of tables
Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics of L4931ABxx27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical characteristics of L4931Cxx27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical characteristics of L4931Cxx27-TRY (Automotive Grade) . . . . . . . . . . . . . . . . . . 11 Electrical characteristics of L4931ABxx33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical characteristics of L4931Cxx33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Electrical characteristics of L4931Cxx33-TRY (Automotive Grade) . . . . . . . . . . . . . . . . . . 14 Electrical characteristics of L4931ABxx35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical characteristics of L4931ABxx35-TRY (Automotive Grade) . . . . . . . . . . . . . . . . . 16 Electrical characteristics of L4931Cxx35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Electrical characteristics of L4931ABxx50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Electrical characteristics of L4931Cxx50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Electrical characteristics of L4931ABxx80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Electrical characteristics of L4931Cxx80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Electrical characteristics of L4931ABxx120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Electrical characteristics of L4931Cxx120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
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L4931ABxx - L4931Cxx
Diagram
1
Figure 1.
Diagram
Schematic diagram
5/36
Pin configuration
L4931ABxx - L4931Cxx
2
Figure 2.
Pin configuration
Pin connections (top view)
TO-220
SO-8
PPAK
DPAK
PIN 1 = VOUT PIN 2 = GND PIN 3 = VI N TO-92 BOTTOM VIEW
6/36
L4931ABxx - L4931Cxx
Maximum ratings
3
Table 2.
Maximum ratings
Absolute maximum ratings
Parameter DC Input voltage Output current Power dissipation Storage temperature range Operating junction temperature range Value 20 Internally limited Internally limited -40 to 150 -40 to 125 Unit V mA mW C C
Symbol VI IO PD TSTG TOP
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied Thermal data
Parameter Thermal resistance junction-case Thermal resistance junction-ambient TO-220 3 50 SO-8 20 55 DPAK 8 100 PPAK 8 100 200 TO-92 Unit C/W C/W
Table 3.
Symbol RthJC RthJA
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Application circuit
L4931ABxx - L4931Cxx
4
Figure 3.
Application circuit
Test circuit
8/36
L4931ABxx - L4931Cxx
Electrical characteristics
5
Table 4.
Symbol VO VI Iout VO VO
Electrical characteristics
Electrical characteristics of L4931ABxx27 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 4.7 V IO = 5 mA, VI = 4.7 V, TA=-25 to 85C IO = 250 mA
Min. 2.673 2.646
Typ. 2.7
Max. 2.727
Unit V
2.754 20 300 V mA 15 15 1 mA 4 50 6 100 A mV mV
VI = 3.4 to 20 V, IO = 0.5 mA VI = 3.6 V, IO = 0.5 to 250 mA VI = 3.6 to 20 V, IO = 0 mA VI = 3.6 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 4.6 1 V
3 3 0.6
Id
Quiescent current ON MODE OFF MODE
74 71 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
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Electrical characteristics
L4931ABxx - L4931Cxx
Table 5.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931Cxx27 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 4.7 V IO = 5 mA, VI = 4.7 V, TA=-25 to 85C IO = 250 mA
Min. 2.646 2.592
Typ. 2.7
Max. 2.754
Unit V
2.808 20 300 V mA 18 18 1 mA 4 50 6 100 A mV mV
VI = 3.4 to 20 V, IO = 0.5 mA VI = 3.6 V, IO = 0.5 to 250 mA VI = 3.6 to 20 V, IO = 0 mA VI = 3.6 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 4.6 1 V
3 3 0.6
Id
Quiescent current ON MODE OFF MODE
74 71 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
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L4931ABxx - L4931Cxx
Electrical characteristics
Table 6.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931Cxx27-TRY (Automotive Grade) (refer to the test circuits, TA = -40 to 12 5C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation Quiescent current ON MODE OFF MODE Test conditions IO = 5 mA, VI = 4.7 V, TA = 25C IO = 5 mA, VI = 4.7 V IO = 250 mA TA = 25C VI = 3.4 to 20 V, IO = 0.5 mA VI = 3.6 V, IO = 0.5 to 250 mA VI = 3.6 to 20 V, IO = 0 mA VI = 3.6 to 20 V, IO = 250 mA VI = 6 V IO = 5 mA VI = 4.6 1 V TA = 25C f = 120 Hz f = 1 kHz f = 10 kHz 74 71 55 50 0.4 0.6 0.82 0.82 2 VI = 6 V, VC = 6 V, TA = 25C ESR = 0.1 to 10 , IO = 0 to 250 mA, TA = 25C 2 10 10 V V V V V A F dB 300 20 38 1 mA 6 100 A Min. 2.646 2.592 Typ. 2.7 Max. 2.754 V 2.808 20 V mA mV mV Unit
Id
SVR
Supply voltage rejection
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz, TA = 25C IO = 250 mA, TA = 25C IO = 250 mA
11/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 7.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931ABxx33 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 5.3 V IO = 5 mA, VI = 5.3 V, TA=-25 to 85C IO = 250 mA
Min. 3.267 3.234
Typ. 3.3
Max. 3.333
Unit V
3.366 20 300 V mA 15 15 1 mA 4 50 6 100 A mV mV
VI = 4 to 20 V, IO = 0.5 mA VI = 4.2 V, IO = 0.5 to 250 mA VI = 4.2 to 20 V, IO = 0 mA VI = 4.2 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 5.2 1 V
3 3 0.6
Id
Quiescent current ON MODE OFF MODE
73 70 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
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L4931ABxx - L4931Cxx
Electrical characteristics
Table 8.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931Cxx33 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 5.3 V IO = 5 mA, VI = 5.3 V, TA=-25 to 85C IO = 250 mA
Min. 3.234 3.168
Typ. 3.3
Max. 3.366
Unit V
3.432 20 300 V mA 18 18 1 mA 4 50 6 100 A mV mV
VI = 4.1 to 20 V, IO = 0.5 mA VI = 4.3 V, IO = 0.5 to 250 mA VI = 4.3 to 20 V, IO = 0 mA VI = 4.3 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 5.3 1 V
3 3 0.6
Id
Quiescent current ON MODE OFF MODE
73 70 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
13/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 9.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931Cxx33-TRY (Automotive Grade) (refer to the test circuits, TA = -40 to 125 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation Quiescent current ON MODE OFF MODE Test conditions IO = 5 mA, VI = 5.3 V, TA = 25C IO = 5 mA, VI = 5.3 V IO = 250 mA TA = 25C VI = 4.1 to 20 V, IO = 0.5 mA VI = 4.3 V, IO = 0.5 to 250 mA VI = 4.3 to 20 V, IO = 0 mA VI = 4.3 to 20 V, IO = 250 mA VI = 6 V IO = 5 mA VI = 5.3 1 V TA = 25C f = 120 Hz f = 1 kHz f = 10 kHz 73 70 55 50 0.4 0.6 0.82 0.82 2 VI = 6 V, VC = 6 V, TA = 25C ESR = 0.1 to 10 , IO = 0 to 250 mA, TA = 25C 2 10 10 V V V V V A F dB 300 20 38 1 mA 6 100 A Min. 3.234 3.168 Typ. 3.3 Max. 3.366 V 3.432 20 V mA mV mV Unit
Id
SVR
Supply voltage rejection
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz, TA = 25C IO = 250 mA, TA = 25C IO = 250 mA
14/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 10.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931ABxx35 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 5.5 V IO = 5 mA, VI = 5.5 V, TA=-25 to 85C IO = 250 mA
Min. 3.465 3.43
Typ. 3.5
Max. 3.535
Unit V
3.57 20 300 V mA 15 15 1 mA 4 50 6 100 A mV mV
VI = 4.2 to 20 V, IO = 0.5 mA VI = 4.4 V, IO = 0.5 to 250 mA VI = 4.4 to 20 V, IO = 0 mA VI = 4.4 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 5.4 1 V
3 3 0.6
Id
Quiescent current ON MODE OFF MODE
73 70 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
15/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 11.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931ABxx35-TRY (Automotive Grade) (refer to the test circuits, TA = -40 to 125 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation Quiescent current ON MODE OFF MODE Test conditions IO = 5 mA, VI = 5.5 V, TA = 25C IO = 5 mA, VI = 5.5 V IO = 250 mA TA = 25C VI = 4.2 to 20 V, IO = 0.5 mA VI = 4.4 V, IO = 0.5 to 250 mA VI = 4.4 to 20 V, IO = 0 mA VI = 4.4 to 20 V, IO = 250 mA VI = 6 V IO = 5 mA VI = 5.4 1 V TA = 25C f = 120 Hz f = 1 kHz f = 10 kHz 73 70 55 50 0.4 0.6 0.82 0.82 2 VI = 6 V, VC = 6 V, TA = 25C ESR = 0.1 to 10 , IO = 0 to 250 mA, TA = 25C 2 10 10 V V V V V A F dB 300 17 35 1 mA 6 100 A Min. 3.465 3.43 Typ. 3.5 Max. 3.535 V 3.57 20 V mA mV mV Unit
Id
SVR
Supply voltage rejection
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz, TA = 25C IO = 250 mA, TA = 25C IO = 250 mA
16/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 12.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931Cxx35 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 5.5 V IO = 5 mA, VI = 5.5 V, TA=-25 to 85C IO = 250 mA
Min. 3.43 3.36
Typ. 3.5
Max. 3.57
Unit V
3.64 20 300 V mA 18 18 1 mA 4 50 6 100 A mV mV
VI = 4.3 to 20 V, IO = 0.5 mA VI = 4.5 V, IO = 0.5 to 250 mA VI = 4.5 to 20 V, IO = 0 mA VI = 4.5 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 5.5 1 V
3 3 0.6
Id
Quiescent current ON MODE OFF MODE
73 70 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA= -40 to 125C TA= -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
17/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 13.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931ABxx50 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 7 V IO = 5 mA, VI = 7 V, TA=-25 to 85C IO = 250 mA
Min. 4.95 4.9
Typ. 5
Max. 5.05
Unit V
5.1 20 300 V mA 17.5 15 1 mA 4 50 6 100 A mV mV
VI = 5.8 to 20 V, IO = 0.5 mA VI = 6 V, IO = 0.5 to 250 mA VI = 6 to 20 V, IO = 0 mA VI = 6 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 7 1 V
3.5 3 0.6
Id
Quiescent current ON MODE OFF MODE
70 67 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
18/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 14.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931Cxx50 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 7 V IO = 5 mA, VI = 7 V, TA=-25 to 85C IO = 250 mA
Min. 4.9 4.8
Typ. 5
Max. 5.1
Unit V
5.2 20 300 V mA 17.5 15 1 mA 4 50 6 100 A mV mV
VI = 5.8 to 20 V, IO = 0.5 mA VI = 6 V, IO = 0.5 to 250 mA VI = 6 to 20 V, IO = 0 mA VI = 6 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 7 1 V
3.5 3 0.6
Id
Quiescent current ON MODE OFF MODE
70 67 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
19/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 15.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931ABxx80 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 10 V IO = 5 mA, VI = 10 V, TA=-25 to 85C IO = 250 mA
Min. 7.92 7.84
Typ. 8
Max. 8.08
Unit V
8.16 20 300 V mA 20 15 1.6 mA 4.5 70 7 140 A mV mV
VI = 8.8 to 20 V, IO = 0.5 mA VI = 9 V, IO = 0.5 to 250 mA VI = 9 to 20 V, IO = 0 mA VI = 9 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 10 1 V
4 3 0.8
Id
Quiescent current ON MODE OFF MODE
67 64 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
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L4931ABxx - L4931Cxx
Electrical characteristics
Table 16.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931Cxx80 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 10 V IO = 5 mA, VI = 10 V, TA=-25 to 85C IO = 250 mA
Min. 7.84 7.68
Typ. 8
Max. 8.16
Unit V
8.32 20 300 V mA 24 18 1.6 mA 4.5 70 7 140 A mV mV
VI = 8.9 to 20 V, IO = 0.5 mA VI = 9.1 V, IO = 0.5 to 250 mA VI = 9.1 to 20 V, IO = 0 mA VI = 9.1 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 10.1 1 V
4 3 0.8
Id
Quiescent current ON MODE OFF MODE
67 64 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
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Electrical characteristics
L4931ABxx - L4931Cxx
Table 17.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931ABxx120 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 14 V IO = 5 mA, VI = 14 V, TA=-25 to 85C IO = 250 mA
Min. 11.88 11.76
Typ. 12
Max. 12.12
Unit V
12.24 20 300 V mA 20 15 1.6 mA 4.5 90 7 180 A mV mV
VI = 12.8 to 20 V, IO = 0.5 mA VI = 13 V, IO = 0.5 to 250 mA VI = 13 to 20 V, IO = 0 mA VI = 13 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 14 1 V
4 3 0.8
Id
Quiescent current ON MODE OFF MODE
64 61 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
22/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 18.
Symbol VO VI Iout VO VO
Electrical characteristics of L4931Cxx120 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified).
Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation
(1)
Test conditions IO = 5 mA, VI = 14 V IO = 5 mA, VI = 14 V, TA=-25 to 85C IO = 250 mA
Min. 11.76 11.52
Typ. 12
Max. 12.24
Unit V
12.48 20 300 V mA 24 18 1.6 mA 4.5 90 7 180 A mV mV
VI = 12.9 to 20 V, IO = 0.5 mA VI = 13.1 V, IO = 0.5 to 250 mA VI = 13.1 to 20 V, IO = 0 mA VI = 13.1 to 20 V, IO = 250 mA VI = 6 V f = 120 Hz IO = 5 mA VI = 14.1 1 V
4 3 0.8
Id
Quiescent current ON MODE OFF MODE
64 61 55 50 0.4 0.6 0.8 0.8 2 10 2 10 V V V V V A F dB
SVR
Supply voltage rejection
f = 1 kHz f = 10 kHz
eN Vd VIL VIH II CO
Output noise voltage Dropout voltage (1) Control input logic low Control Input Logic High Control input current Output bypass capacitance
B = 10 Hz to 100 kHz IO = 250 mA IO = 250 mA, TA= -40 to 125C TA = -40 to 125C TA = -40 to 125C VI = 6 V, VC = 6 V ESR = 0.1 to 10 , IO = 0 to 250 mA
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
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Typical application
L4931ABxx - L4931Cxx
6
Figure 4.
Typical application
Line regulation vs temperature Figure 5. Dropout voltage vs temperature
Figure 6.
Supply current vs input voltage
Figure 7.
Supply current vs temperature
Figure 8.
Short circuit current vs dropout voltage
Figure 9.
SVR vs input voltage signal frequency
24/36
L4931ABxx - L4931Cxx
Package mechanical data
7
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
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Package mechanical data
L4931ABxx - L4931Cxx
TO-220 mechanical data
Dim. A C D D1 E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 DIA. 13.0 2.65 15.25 6.2 3.5 3.75 0.49 0.61 1.14 1.14 4.95 2.4 10.0 16.4 14.0 2.95 15.75 6.6 3.93 3.85 0.511 0.104 0.600 0.244 0.137 0.147 mm. Min. 4.40 1.23 2.40 1.27 0.70 0.88 1.70 1.70 5.15 2.7 10.40 0.019 0.024 0.044 0.044 0.194 0.094 0.393 0.645 0.551 0.116 0.620 0.260 0.154 0.151 Typ. Max. 4.60 1.32 2.72 Min. 0.173 0.048 0.094 0.050 0.027 0.034 0.067 0.067 0.203 0.106 0.409 inch. Typ. Max. 0.181 0.051 0.107
P011C
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L4931ABxx - L4931Cxx
Package mechanical data
TO-92 mechanical data
mm . Dim. Min. A b D E e e1 L R S1 W 4.32 0.36 4.45 3.30 2.41 1.14 12.7 2.16 0.92 0.41 5 Typ. Max. 4.95 0.51 4.95 3.94 2.67 1.40 15.49 2.41 1.52 0.56 Min. 170.1 14.2 175.2 129.9 94.9 44.9 500.0 85.0 36.2 16.1 5 Typ. Max. 194.9 20.1 194.9 155.1 105.1 55.1 609.8 94.9 59.8 22.0 mi l s .
0102782/D
27/36
Package mechanical data
L4931ABxx - L4931Cxx
PPAK mechanical data
mm. Dim. Min. A A1 A2 B B2 C C2 D D1 E E1 e G G1 H L2 L4 L5 L6 0.6 1 2.8 4.9 2.38 9.35 0.8 6.4 4.7 1.27 5.25 2.7 10.1 1 1 0.023 0.039 0.110 0.193 0.093 0.368 0.031 2.2 0.9 0.03 0.4 5.2 0 .45 0.48 6 5.1 6.6 0.252 0.185 0.050 0.206 0.106 0.397 0.039 0.039 Typ. Max. 2.4 1.1 0.23 0.6 5.4 0.6 0.6 6.2 Min. 0.086 0.035 0.001 0.015 0.204 0.017 0.019 0.236 0.201 0.260 Typ. Max. 0.094 0.043 0.009 0.023 0.212 0.023 0.023 0.244 inch.
0078180-E
28/36
L4931ABxx - L4931Cxx
Package mechanical data
DPAK mechanical data
mm. Dim. Min. A A1 A2 B b4 C C2 D D1 E E1 e e1 H L (L1) L2 L4 R V2 2.2 0.9 0.03 0 .64 5.2 0 .45 0.48 6 5.1 6.4 4.7 2.28 4.4 9.35 1 2.8 0.8 0.6 0. 2 0 8 0 1 0.023 0.008 8 4.6 10.1 0.173 0.368 0.039 0.110 0.031 0.039 6.6 0.252 0.185 0.090 0.181 0.397 Typ. Max. 2.4 1.1 0.23 0 .9 5.4 0.6 0.6 6.2 Min. 0.086 0.035 0.001 0.025 0.204 0.017 0.019 0.236 0.200 0.260 Typ. Max. 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 inch.
0068772-F
29/36
Package mechanical data
L4931ABxx - L4931Cxx
SO-8 mechanical data
Dim. A A1 A2 B C D E e H h L k ddd 0.1 5.80 0.25 0.40 mm. Min. 1.35 0.10 1.10 0.33 0.19 4.80 3.80 1.27 6.20 0.50 1.27 8 (max.) 0.04 0.228 0.010 0.016 Typ. Max. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 Min. 0.053 0.04 0.043 0.013 0.007 0.189 0.150 0.050 0.244 0.020 0.050 inch. Typ. Max. 0.069 0.010 0.065 0.020 0.010 0.197 0.157
0016023/C
30/36
L4931ABxx - L4931Cxx
Package mechanical data
Tape & reel DPAK-PPAK mechanical data
mm. Dim. Min. A C D N T Ao Bo Ko Po P 6.80 10.40 2.55 3.9 7.9 6.90 10.50 2.65 4.0 8.0 12.8 20.2 60 22.4 7.00 10.60 2.75 4.1 8.1 0.268 0.409 0.100 0.153 0.311 0.272 0.413 0.104 0.157 0.315 13.0 Typ. Max. 330 13.2 0.504 0.795 2.362 0.882 0.2.76 0.417 0.105 0.161 0.319 0.512 Min. Typ. Max. 12.992 0.519 i nch.
31/36
Package mechanical data
L4931ABxx - L4931Cxx
Tape & reel SO-8 mechanical data
mm. Dim. Min. A C D N T Ao Bo Ko Po P 8.1 5.5 2.1 3.9 7.9 12.8 20.2 60 22.4 8 .5 5.9 2.3 4.1 8.1 0.319 0.216 0.082 0.153 0.311 Typ. Max. 330 13.2 0.504 0.795 2 .362 0.882 0.335 0.232 0.090 0.161 0.319 Min. Typ. Max. 12.992 0.519 inch.
32/36
L4931ABxx - L4931Cxx
Package mechanical data
Tape & reel for TO-92 mechanical data
Dim. A1 T T1 T2 d P0 P2 F1, F2 delta H W W0 W1 W2 H H0 H1 D0 t L1 delta P u 1 2 mm. Min. Typ. 4.80 3.80 1.60 2.30 0.48 12.5 5.65 2.44 17.5 5.7 8.5 12.9 7.05 2.94 19.0 6.3 9.25 18.70 16.50 4.2 0.90 3 1 50 360 30
delta P A1 H1 H H0 L l1 W0 W W1 F1 F2 P2 P0 d W2 delta H T2
inch. Max. Min. Typ. 0.189 0.150 0.063 0.091 0.019 0.492 0.222 0.096 0.689 0.224 0.335 0.508 0.278 0.116 0.748 0.248 0.364 0.726 0.650 0.165 0.035 0.118 0.039 1.968 14.173 1.181
T T1
Max.
2.54 2 18.00
0.100 0 .07 9 0.709
0.50 18.50 15.50 25.00 3.8
0.20 0.728 0.610 0.984 0.150
D0
t
DRAWING NOT IN SCALE
33/36
Order codes
L4931ABxx - L4931Cxx
8
Table 19.
Order codes
Order codes
Packages TO-220 SO-8 L4931CD27-TR L4931CD27-TRY(1) L4931CD33-TR L4931ABPT27TR L4931CPT33-TR L4931CDT33-TR L4931ABDT33-TR L4931CZ33-AP PPAK DPAK TO-92 Output voltage 2.7 V 2.7 V 3.3 V 3.3 V 3.3 V L4931CDT35-TR L4931ABDT35TR 3.5 V 3.5 V 3.5 V L4931CPT50-TR L4931CDT50-TR L4931ABDT50-TR L4931CPT80-TR L4931ABPT80TR L4931CD120-TR L4931ABD120TR L4931CPT120-TR L4931ABPT120R L4931CDT80-TR L4931ABDT80-TR L4931CDT120-TR L4931CZ50-AP 5V 5V 8V 8V 12 V 12 V
L4931ABV33
L4931ABD33-TR L4931CD33-TRY
(1)
L4931CD35-TR L4931ABD35-TR L4931ABD35-TRY L4931CD50-TR L4931ABD50-TR L4931CD80-TR
(1)
1. Automotive Grade products.
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L4931ABxx - L4931Cxx
Revision history
9
Table 20.
Date
Revision history
Document revision history
Revision 11 12 13 14 15 16 17 Document updating. Order codes updated. Added: Table 1 and new order codes for Automotive grade products. Modified: Table 19 on page 34. Modified: Table 1 on page 1 and Table 19 on page 34. Modified: Table 1 on page 1 and Table 19 on page 34. Modified: Table 19 on page 34. Changes
21-Jun-2004 14-Jun-2006 31-Jan-2008 20-Feb-2008 11-Mar-2008 15-Jul-2008 18-Aug-2008
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L4931ABxx - L4931Cxx
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