400mA Nano-Quiescent Synchronous step-down converter with digital voltage selection and power good

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  • The ST1PS01 is a nano-quiescent miniaturized synchronous step-down converter, which is able to provide up to 400 mA output current with an input voltage ranging from 1.8 V to 5.5 V. This converter is specifically designed for applications where high efficiency, PCB size and thickness are the key factors. The output voltage can be set using two digital control inputs, a VOUT from 1.8 V to 3.3 V can be dynamically selected. Thanks to the enhanced PCC (peak current control) the ST1PS01 reaches very high efficiency conversion using just a 2.2 µH inductor and two small capacitors. Advanced design circuitry is implemented to minimize the quiescent current. The device is available in Flip-Chip package.

    Key Features

    • 500 nA input quiescent current at VIN=3.6 V (not switching)
    • 94% typical efficiency at 1 mA load (VIN=3.6 V, VOUT=3.3 V)
    • 100% duty cycle
    • 1.8 V to 5.5 V input operating range
    • Undervoltage lockout: 1.57 V (VIN falling, typ.)
    • Up to 400 mA output current capability
    • Low power control operation for the best efficiency
    • Embedded soft-start circuit
    • Tiny external components: L=2.2 µH typ.
    • Selectable output voltages: 1.8 V to 3.3 V
    • Output voltage Power Good
    • ±1.5% output voltage accuracy (VOUT, TA=25 °C)
    • Dynamic voltage selection (D0, D1)
    • Available in Flip-Chip package

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ST1PS01AJR Chip Scale Package 0.4mm pitch Tape And Reel
Active
0.686 1000 EAR99 - Check Availability

Distributor availability ofST1PS01AJR

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DIGIKEY WORLDWIDE 2495 1 Order Now
AVNET AMERICA 2500 0 Order Now
Farnell Element14 EUROPE 100 1 Order Now
ANGLIA Live EUROPE 100 5000 Order Now

Distributor reported inventory date: 2019-05-17

Distributor Name

DIGIKEY

Stock

2495

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

100

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

5000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-17

ST1PS01DJR Chip Scale Package 0.4mm pitch Tape And Reel
Active
0.686 1000 EAR99 - Check Availability

Distributor availability ofST1PS01DJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 2495 1 Order Now
Farnell Element14 EUROPE 100 1 Order Now
ANGLIA Live EUROPE 100 5000 Order Now

Distributor reported inventory date: 2019-05-17

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2495

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

100

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

5000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-17

Get sample
ST1PS01EJR Chip Scale Package 0.4mm pitch Tape And Reel
Active
0.686 1000 EAR99 - Check Availability

Distributor availability ofST1PS01EJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 673 1 Order Now
AVNET AMERICA 5000 0 Order Now
FUTURE WORLDWIDE 1000 1 Order Now
ARROW EUROPE 85000 0 Order Now
MOUSER WORLDWIDE 862 1 Order Now
RUTRONIK EUROPE 100 1 Order Now

Distributor reported inventory date: 2019-05-17

Distributor Name

DIGIKEY

Stock

673

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

1000

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

85000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

862

Min.Order

1

Region

WORLDWIDE Order Now

RUTRONIK

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-17

Get sample

ST1PS01AJR

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Unit Price (US$)

0.686*

Distributor availability ofST1PS01AJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2495 1 Order Now
AVNET AMERICA 2500 0 Order Now
Farnell Element14 EUROPE 100 1 Order Now
ANGLIA Live EUROPE 100 5000 Order Now

Distributor reported inventory date: 2019-05-17

Distributor Name

DIGIKEY

Stock

2495

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

100

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

5000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-17

Marketing Status

Active

Unit Price (US$)

0.686

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

ST1PS01DJR

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Unit Price (US$)

0.686*

Distributor availability ofST1PS01DJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 2495 1 Order Now
Farnell Element14 EUROPE 100 1 Order Now
ANGLIA Live EUROPE 100 5000 Order Now

Distributor reported inventory date: 2019-05-17

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2495

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

100

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

5000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-17

Marketing Status

Active

Unit Price (US$)

0.686

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

ST1PS01EJR

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Unit Price (US$)

0.686*

Distributor availability ofST1PS01EJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 673 1 Order Now
AVNET AMERICA 5000 0 Order Now
FUTURE WORLDWIDE 1000 1 Order Now
ARROW EUROPE 85000 0 Order Now
MOUSER WORLDWIDE 862 1 Order Now
RUTRONIK EUROPE 100 1 Order Now

Distributor reported inventory date: 2019-05-17

Distributor Name

DIGIKEY

Stock

673

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

1000

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

85000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

862

Min.Order

1

Region

WORLDWIDE Order Now

RUTRONIK

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-17

Marketing Status

Active

Unit Price (US$)

0.686

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

(*) 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

Evaluation Tools

    • Part Number

      Evaluation board based on ST1PS01AJR 400 mA nano-quiescent synchronous step-down converter

      Evaluation board based on ST1PS01DJR 400 mA nano-quiescent synchronous step-down converter

      Evaluation board based on the ST1PS01EJR 400 mA nano-quiescent synchronous step-down converter

      LoRa® IoT tracker

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Technical Documentation

    • Description Version Size Action
      DS12799
      400 mA nano-quiescent synchronous step-down converter with digital voltage selection and Power Good
      2.0
      2.66 MB
      PDF
      DS12799

      400 mA nano-quiescent synchronous step-down converter with digital voltage selection and Power Good

Publications and Collaterals

    • Description Version Size Action
      DC-DC converters 400 mA, nano-quiescent current synchronous step-down converter 1.0
      215.63 KB
      PDF

      DC-DC converters 400 mA, nano-quiescent current synchronous step-down converter

    • Description Version Size Action
      Brochure Power management guide 10.2018
      4.42 MB
      PDF
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF
      Switching Converters (DC-DC) – Quick Reference Guide 1.0
      481.92 KB
      PDF

      Brochure Power management guide

      Electric vehicle (EV) ecosystem

      Switching Converters (DC-DC) – Quick Reference Guide

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST1PS01AJR
Active
Chip Scale Package 0.4mm pitch Industrial Ecopack2
ST1PS01DJR
Active
Chip Scale Package 0.4mm pitch Industrial Ecopack2
ST1PS01EJR
Active
Chip Scale Package 0.4mm pitch Industrial Ecopack2

ST1PS01AJR

Package:

Chip Scale Package 0.4mm pitch

Material Declaration**:

Marketing Status

Active

Package

Chip Scale Package 0.4mm pitch

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1PS01DJR

Package:

Chip Scale Package 0.4mm pitch

Material Declaration**:

Marketing Status

Active

Package

Chip Scale Package 0.4mm pitch

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1PS01EJR

Package:

Chip Scale Package 0.4mm pitch

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Chip Scale Package 0.4mm pitch

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.