Very low drop and low noise BiCMOS 300 mA voltage regulator

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  • The LDS3985 provides up to 300 mA, from 2.5 V to 6 V input voltage. It is stable with ceramic and high quality tantalum capacitor. The ultra low drop voltage, low quiescent current and low noise make it suitable for low power applications and battery-powered systems. Shutdown logic control function is available, this means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. Typical applications are mobile phones and similar battery-powered wireless systems, portable information appliances.

    主要特性

    • Input voltage from 2.5 V to 6 V
    • Stable with low ESR ceramic capacitors
    • Very low dropout voltage (150 mV typ. at 300 mA load, 0.4 mV typ. at 1 mA load)
    • Very low quiescent current (85 µA typ. at no load, 200 µA typ. at 300 mA load; max.1.5 µA in OFF mode)
    • Guaranteed output current up to 300 mA
    • Wide range of output voltages available on request: fixed from 1.25 V to 5 V with 100 mV step
    • Fast turn-on time: typ. 240 µs
      • [CO = 2.2 µF, CBYP = 33 nF and IO= 1 mA]
    • Logic-controlled electronic shutdown
    • Internal current and thermal limit
    • Low output voltage noise: 30 µ VRMS over 10 Hz to 100 kHz
    • SVR of 55 dB at 1 kHz, 50 dB at 10 kHz
    • Temperature range: - 40 °C to 125 °C
    • Automotive grade product available in DFN6 package, temperature range: - 40 °C to 85 °C

样片和购买

型号
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
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LDS3985M30R SOT23-5L Tape And Reel 3 3 0.3
Active
0.24 1000
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ECCN (US):

EAR99

Country of Origin:

MALAYSIA

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LDS3985M25R SOT23-5L Tape And Reel 2.5 3 0.3
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0.24 1000
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EAR99

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MALAYSIA

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LDS3985PU33RY DFN6 3x3 Tape And Reel 3.3 3 0.3
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EAR99

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MALAYSIA

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LDS3985M28R SOT23-5L Tape And Reel 2.8 3 0.3
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EAR99

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MALAYSIA

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LDS3985M18R SOT23-5L Tape And Reel 1.8 3 0.3
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EAR99

Country of Origin:

MALAYSIA

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LDS3985PU33R DFN6 3x3 Tape And Reel 3.3 3 0.3
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EAR99

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MALAYSIA

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LDS3985M33R SOT23-5L Tape And Reel 3.3 3 0.3
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LDS3985M50R SOT23-5L Tape And Reel 5 3 0.3
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0.24 1000
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No availability of distributors reported, please contact our sales office
LDS3985PU15R DFN6 3x3 Tape And Reel 1.5 3 0.3
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0.24 1000
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EAR99

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MALAYSIA

No availability of distributors reported, please contact our sales office
LDS3985PU28R DFN6 3x3 Tape And Reel 2.8 3 0.3
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0.401 1000
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ECCN (US):

EAR99

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MALAYSIA

No availability of distributors reported, please contact our sales office
LDS3985M15R SOT23-5L Tape And Reel 1.5 3 0.3
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0.24 1000
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EAR99

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MALAYSIA

No availability of distributors reported, please contact our sales office
LDS3985PU18RY DFN6 3x3 Tape And Reel 1.8 3 0.3
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0.6 1000
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MALAYSIA

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LDS3985M30R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Distributor availability ofLDS3985M30R

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DIGIKEY WORLDWIDE 13023 1 Order Now
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代理商库存报告日期: 2019-05-26

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DIGIKEY

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WORLDWIDE Order Now

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库存

1468

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代理商库存报告日期: 2019-05-26

Output Voltage (V) (nom)

3

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985M25R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Distributor availability ofLDS3985M25R

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DIGIKEY WORLDWIDE 103 1 Order Now
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代理商库存报告日期: 2019-05-26

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103

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2849

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1

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代理商库存报告日期: 2019-05-26

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985PU33RY

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.6*

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2819

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Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.6

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985M28R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Distributor availability ofLDS3985M28R

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MOUSER WORLDWIDE 100 1 Order Now

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MOUSER

库存

100

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1

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代理商库存报告日期: 2019-05-26

Output Voltage (V) (nom)

2.8

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985M18R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Distributor availability ofLDS3985M18R

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DIGIKEY WORLDWIDE 33 1 Order Now
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代理商库存报告日期: 2019-05-26

代理商名称

DIGIKEY

库存

33

Min.Order

1

地区

WORLDWIDE Order Now

AVNET

库存

36000

Min.Order

0

地区

AMERICA Order Now

代理商库存报告日期: 2019-05-26

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985PU33R

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.401*

Distributor availability ofLDS3985PU33R

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 96 1 Order Now

代理商库存报告日期: 2019-05-26

代理商名称

MOUSER

库存

96

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-05-26

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.401

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985M33R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Distributor availability ofLDS3985M33R

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2340 1 Order Now
RS COMPONENTS EUROPE 3925 25 Order Now
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MOUSER WORLDWIDE 9873 1 Order Now
Farnell Element14 EUROPE 2816 1 Order Now

代理商库存报告日期: 2019-05-26

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DIGIKEY

库存

2340

Min.Order

1

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WORLDWIDE Order Now

RS COMPONENTS

库存

3925

Min.Order

25

地区

EUROPE Order Now

FUTURE

库存

7890

Min.Order

1

地区

WORLDWIDE Order Now

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库存

9873

Min.Order

1

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WORLDWIDE Order Now

Farnell Element14

库存

2816

Min.Order

1

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EUROPE Order Now

代理商库存报告日期: 2019-05-26

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985M50R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Output Voltage (V) (nom)

5

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985PU15R

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Output Voltage (V) (nom)

1.5

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985PU28R

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.401*

Output Voltage (V) (nom)

2.8

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.401

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985M15R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Output Voltage (V) (nom)

1.5

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LDS3985PU18RY

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.6*

Distributor availability ofLDS3985PU18RY

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2910 1 Order Now
FUTURE WORLDWIDE 6000 3000 Order Now
MOUSER WORLDWIDE 5999 1 Order Now

代理商库存报告日期: 2019-05-26

代理商名称

DIGIKEY

库存

2910

Min.Order

1

地区

WORLDWIDE Order Now

FUTURE

库存

6000

Min.Order

3000

地区

WORLDWIDE Order Now

MOUSER

库存

5999

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-05-26

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

3

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.6

Quantity

1000

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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型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LDS3985M15R
Active
SOT23-5L 工业 Ecopack2
LDS3985M18R
Active
SOT23-5L 工业 Ecopack2
LDS3985M25R
Active
SOT23-5L 工业 Ecopack2
LDS3985M28R
Active
SOT23-5L 工业 Ecopack2
LDS3985M30R
Active
SOT23-5L 工业 Ecopack2
LDS3985M33R
Active
SOT23-5L 工业 Ecopack2
LDS3985M50R
Active
SOT23-5L 工业 Ecopack2
LDS3985PU15R
Active
DFN6 3x3 工业 Ecopack2
LDS3985PU18RY
Active
DFN6 3x3 汽车 Ecopack2
LDS3985PU28R
Active
DFN6 3x3 工业 Ecopack2
LDS3985PU33R
Active
DFN6 3x3 工业 Ecopack2
LDS3985PU33RY
Active
DFN6 3x3 汽车 Ecopack2

LDS3985M15R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDS3985M18R

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDS3985M25R

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDS3985M28R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDS3985M30R

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDS3985M33R

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDS3985M50R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDS3985PU15R

Package:

DFN6 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDS3985PU18RY

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Automotive

RoHS Compliance Grade

Ecopack2

LDS3985PU28R

Package:

DFN6 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDS3985PU33R

Package:

DFN6 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDS3985PU33RY

Package:

DFN6 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN6 3x3

Grade

Automotive

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.