500 mA low quiescent current and low noise voltage regulator

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  • The LD39050 provides 500 mA maximum current with an input voltage range from 1.5 V to 5.5 V and a typical dropout voltage of 200 mV. Stability is given by ceramic capacitors. The ultra low drop voltage, low quiescent current and low noise features make it suitable for low power batterypowered applications. Power supply rejection is 65 dB at low frequencies and starts to roll off at 10 kHz. The enable logic control function puts the LD39050 in shutdown mode allowing a total current consumption lower than 1 μA. The device also includes short-circuit constant current limiting and thermal protection. Typical applications are mobile phones, hard disks and battery-powered systems.

    主要特性

    • Input voltage from 1.5 to 5.5 V
    • Ultra low-dropout voltage (200 mV typ. at 500 mA load)
    • Very low quiescent current (20 μA typ. at no load, 100 μA typ. at 500 mA load, 1 μA max. in OFF mode)
    • Very low noise without bypass capacitor
    • Output voltage tolerance: ± 2.0% @ 25 °C
    • 500 mA guaranteed output current
    • Wide range of output voltages available on request: 0.8 V to 4.5 V with 100 mV step and adjustable from 0.8 V
    • Logic-controlled electronic shutdown
    • Compatible with ceramic capacitor COUT = 1 μF
    • Internal current and thermal limit
    • Package DFN6 (3x3 mm) and DFN6 (2x2 mm)
    • Temperature range: from -40 °C to 125 °C

样片和购买

型号
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Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
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LD39050PU25R DFN6 3x3 Tape And Reel 2.5 2 0.5
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0.405 1000
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ECCN (US):

EAR99

Country of Origin:

MALAYSIA

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LD39050PVR DFN6 2x2 Tape And Reel - 2 0.5
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LD39050PUR DFN6 3x3 Tape And Reel - 2 0.5
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0.405 1000
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EAR99

Country of Origin:

MALAYSIA

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LD39050PU33R DFN6 3x3 Tape And Reel 3.3 2 0.5
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EAR99

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LD39050PU25R

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.405*

Distributor availability ofLD39050PU25R

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Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

Marketing Status

Active

Unit Price (US$)

0.405

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LD39050PVR

Package

DFN6 2x2

Packing Type

Tape And Reel

Unit Price (US$)

0.405*

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

Marketing Status

Preview

Unit Price (US$)

0.405

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

LD39050PV10R

Package

DFN6 2x2

Packing Type

Tape And Reel

Unit Price (US$)

0.405*

Distributor availability ofLD39050PV10R

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DIGIKEY WORLDWIDE 2939 1 Order Now
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代理商库存报告日期: 2019-04-24

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库存

2931

Min.Order

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代理商库存报告日期: 2019-04-24

Output Voltage (V) (nom)

1

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

Marketing Status

Active

Unit Price (US$)

0.405

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LD39050PUR

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.405*

Distributor availability ofLD39050PUR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 26937 1 Order Now
RS COMPONENTS EUROPE 6210 1 Order Now
FUTURE WORLDWIDE 21000 3000 Order Now
ARROW EUROPE 1700 0 Order Now
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ARROW AMERICA 27000 3000 Order Now
MOUSER WORLDWIDE 34436 1 Order Now
Farnell Element14 EUROPE 6954 1 Order Now
ANGLIA Live EUROPE 3000 1 Order Now

代理商库存报告日期: 2019-04-24

代理商名称

DIGIKEY

库存

26937

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

6210

Min.Order

1

地区

EUROPE Order Now

FUTURE

库存

21000

Min.Order

3000

地区

WORLDWIDE Order Now

ARROW

库存

1700

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

2213

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

27000

Min.Order

3000

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AMERICA Order Now

MOUSER

库存

34436

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6954

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代理商库存报告日期: 2019-04-24

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

Marketing Status

Active

Unit Price (US$)

0.405

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LD39050PU33R

Package

DFN6 3x3

Packing Type

Tape And Reel

Unit Price (US$)

0.405*

Distributor availability ofLD39050PU33R

代理商名称
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DIGIKEY WORLDWIDE 14028 1 Order Now
ARROW EUROPE 3000 0 Order Now
Newark Element14 AMERICA 962 0 Order Now
MOUSER WORLDWIDE 13293 1 Order Now
Farnell Element14 EUROPE 14439 1 Order Now

代理商库存报告日期: 2019-04-24

代理商名称

DIGIKEY

库存

14028

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

3000

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

962

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

13293

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

14439

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-04-24

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

Marketing Status

Active

Unit Price (US$)

0.405

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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技术文档

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      DS6129
      500 mA low quiescent current and low noise voltage regulator
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型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD39050PU25R
Active
DFN6 3x3 工业 Ecopack2
LD39050PU33R
Active
DFN6 3x3 工业 Ecopack2
LD39050PUR
Active
DFN6 3x3 工业 Ecopack2
LD39050PV10R
Active
DFN6 2x2 工业 Ecopack2
LD39050PVR
Preview
DFN6 2x2 工业 Ecopack2

LD39050PU25R

Package:

DFN6 3x3

Material Declaration**:

XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39050PU33R

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39050PUR

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN6 3x3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39050PV10R

Package:

DFN6 2x2

Material Declaration**:

Marketing Status

Active

Package

DFN6 2x2

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39050PVR

Package:

DFN6 2x2

Material Declaration**:

Marketing Status

Preview

Package

DFN6 2x2

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.