Very low quiescent BiCMOS voltage regulator

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  • The ST1L05 is a low drop linear voltage regulator, which supplies up to 1.3 A output current.

    The output voltage is fixed at 1.8 V, 2.5 V, 3.3 V and it is adjustable. It is available in three different versions with different pinouts.
    Thanks to BiCMOS technology, the quiescent current is controlled and maintained below 650 μA over the entire allowed junction temperature range. The ST1L05 is stable with low ESR output ceramic capacitors.
    Internal protection circuitry includes thermal protection with hysteresis and overcurrent limiting.
    The ST1L05 is suitable for data storage applications such as HDDs, where it can supply 3.3 V required by read channel and memory chips.
    The regulator is available in the small and thin DFN6 (3x3 mm) and DFN8 (4x4 mm) packages.

    Key Features

    • Fixed output voltage: 1.8 V, 2.5 V, 3.3 V and ADJ
    • Output voltage tolerance: ± 2% at 25 °C
    • Output current capability: 1.3 A
    • Very low quiescent current: max. 650 μA
    • Typ. dropout 0.3 V (@ IO = 1.3 A)
    • Enable function for B, C and D versions
    • Power Good function for B and D versions
    • Stable with low ESR ceramic capacitors
    • Thermal shutdown protection with hysteresis
    • Overcurrent protection
    • Operating junction temperature range: from 0 to 125 °C

Circuit Diagram

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Part Number
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
Budgetary Price (US$)*
Quantity
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ST1L05BPUR DFN6 3x3 Tape And Reel - 2 1.3
Active
0.405 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

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DIGIKEY WORLDWIDE 1844 1 Order Now
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Farnell Element14 EUROPE 5981 1 Order Now

Distributor reported inventory date: 2019-09-16

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1844

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1

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3000

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1

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701

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0

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AMERICA Order Now

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5848

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1

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Farnell Element14

Stock

5981

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1

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Distributor reported inventory date: 2019-09-16

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ST1L05CPU33R DFN6 3x3 Tape And Reel 3.3 2 1.3
Active
0.405 10000
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ECCN (US):

EAR99

Country of Origin:

MALAYSIA

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Distributor availability ofST1L05CPU33R

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DIGIKEY WORLDWIDE 3146 1 Order Now
AVNET AMERICA 3000 0 Order Now
MOUSER WORLDWIDE 1893 1 Order Now
ANGLIA Live EUROPE 3000 1 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

3146

Min.Order

1

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WORLDWIDE Order Now

AVNET

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3000

Min.Order

0

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AMERICA Order Now

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Stock

1893

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1

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Stock

3000

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1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

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ST1L05APU33R DFN6 3x3 Tape And Reel 3.3 2 1.3
Active
0.298 10000
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ECCN (US):

EAR99

Country of Origin:

MALAYSIA

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Distributor availability ofST1L05APU33R

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Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3794 1 Order Now
MOUSER WORLDWIDE 4595 1 Order Now
ANGLIA Live EUROPE 3000 3000 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

3794

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

4595

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

3000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

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ST1L05DPUR DFN8 4x4 Tape And Reel - 2 1.3
Active
0.405 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofST1L05DPUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1769 1 Order Now
ANGLIA Live EUROPE 4500 1 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

1769

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

4500

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

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ST1L05PU25R DFN6 3x3 Tape And Reel 2.5 2 1.3
Active
0.405 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofST1L05PU25R

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Region Stock Min. Order Third party link
ANGLIA Live EUROPE 3000 1 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

ANGLIA Live

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

ST1L05BPUR

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.405*

Distributor availability ofST1L05BPUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1844 1 Order Now
RS COMPONENTS EUROPE 3000 1 Order Now
Newark Element14 AMERICA 701 0 Order Now
MOUSER WORLDWIDE 5848 1 Order Now
Farnell Element14 EUROPE 5981 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

1844

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

701

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5848

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5981

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Marketing Status

Active

Unit Price (US$)

0.405

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST1L05CPU33R

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.405*

Distributor availability ofST1L05CPU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3146 1 Order Now
AVNET AMERICA 3000 0 Order Now
MOUSER WORLDWIDE 1893 1 Order Now
ANGLIA Live EUROPE 3000 1 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

3146

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1893

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Marketing Status

Active

Unit Price (US$)

0.405

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST1L05APU33R

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.298*

Distributor availability ofST1L05APU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3794 1 Order Now
MOUSER WORLDWIDE 4595 1 Order Now
ANGLIA Live EUROPE 3000 3000 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

3794

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

4595

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

3000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Marketing Status

Active

Unit Price (US$)

0.298

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST1L05DPUR

Package

DFN8 4x4

Packing Type

Tape And Reel

Unit Price (US$)

0.405*

Distributor availability ofST1L05DPUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1769 1 Order Now
ANGLIA Live EUROPE 4500 1 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

1769

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

4500

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Marketing Status

Active

Unit Price (US$)

0.405

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST1L05PU25R

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.405*

Distributor availability ofST1L05PU25R

Distributor Name
Region Stock Min. Order Third party link
ANGLIA Live EUROPE 3000 1 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

ANGLIA Live

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

1.3

Marketing Status

Active

Unit Price (US$)

0.405

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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      Very low quiescent BiCMOS voltage regulator
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      Very low quiescent BiCMOS voltage regulator

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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST1L05APU33R
Active
DFN6 3x3 Industrial Ecopack2
ST1L05BPUR
Active
DFN6 3x3 Industrial Ecopack2
ST1L05CPU33R
Active
DFN6 3x3 Industrial Ecopack2
ST1L05DPUR
Active
DFN8 4x4 Industrial Ecopack2
ST1L05PU25R
Active
DFN6 3x3 Industrial Ecopack2

ST1L05APU33R

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1L05BPUR

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1L05CPU33R

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1L05DPUR

Package:

DFN8 4x4

Material Declaration**:

Marketing Status

Active

Package

DFN8 4x4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1L05PU25R

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.