ST1PS01

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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 output voltage selection (D0, D1)
    • Available in Flip-Chip package

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

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

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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
      3.0
      2.78 MB
      PDF
      DS12799

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

    • Description Version Size Action
      TN1224
      Mounting instructions for SMD (surface mounting device) packages
      2.2
      1.06 MB
      PDF
      TN1224

      Mounting instructions for SMD (surface mounting device) packages

    • Description Version Size Action
      AN5403
      STEVAL-STRKT01 power management architecture description and configuration for optimized battery life
      2.0
      1.47 MB
      PDF
      AN5403

      STEVAL-STRKT01 power management architecture description and configuration for optimized battery life

Publications and Collaterals

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

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

    • Description Version Size Action
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF

      Electric vehicle (EV) ecosystem

Quality and Reliability

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
ST1PS01AJR Available at 5 distributors

Distributor availability ofST1PS01AJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2488 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 4990 1 Order Now
Farnell Element14 EUROPE 139 1 Order Now
ANGLIA Live EUROPE 100 1 Order Now

Distributor reported inventory date: 2020-06-29

Distributor Name

DIGIKEY

Stock

2488

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4990

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

139

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-06-29

Get sample Chip Scale Package 0.4mm pitch Tape And Reel
Active
EAR99 ITALY 0.39 / 1k
ST1PS01DJR Available at 6 distributors

Distributor availability ofST1PS01DJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2485 1 Order Now
RS COMPONENTS EUROPE 500 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 2485 1 Order Now
Farnell Element14 EUROPE 190 1 Order Now
ANGLIA Live EUROPE 100 1 Order Now

Distributor reported inventory date: 2020-06-29

Distributor Name

DIGIKEY

Stock

2485

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

500

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2485

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

190

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-06-29

Get sample Chip Scale Package 0.4mm pitch Tape And Reel
Active
EAR99 ITALY 0.39 / 1k
ST1PS01EJR Available at 9 distributors

Distributor availability ofST1PS01EJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 217 1 Order Now
RS COMPONENTS EUROPE 500 1 Order Now
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 15000 0 Order Now
Newark Element14 AMERICA 120 0 Order Now
ARROW AMERICA 5000 5000 Order Now
MOUSER WORLDWIDE 5569 1 Order Now
Farnell Element14 EUROPE 296 1 Order Now
ANGLIA Live EUROPE 10100 1 Order Now

Distributor reported inventory date: 2020-06-29

Distributor Name

DIGIKEY

Stock

217

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

500

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

15000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

120

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

5000

Min.Order

5000

Region

AMERICA Order Now

MOUSER

Stock

5569

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

296

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

10100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-06-29

Get sample Chip Scale Package 0.4mm pitch Tape And Reel
Active
EAR99 ITALY 0.39 / 1k

ST1PS01AJR

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.39 / 1k

Distributor availability ofST1PS01AJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2488 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 4990 1 Order Now
Farnell Element14 EUROPE 139 1 Order Now
ANGLIA Live EUROPE 100 1 Order Now

Distributor reported inventory date: 2020-06-29

Distributor Name

DIGIKEY

Stock

2488

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4990

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

139

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-06-29

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.39 / 1k

ECCN (US)

EAR99

Country of Origin

ITALY

ST1PS01DJR

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.39 / 1k

Distributor availability ofST1PS01DJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2485 1 Order Now
RS COMPONENTS EUROPE 500 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 2485 1 Order Now
Farnell Element14 EUROPE 190 1 Order Now
ANGLIA Live EUROPE 100 1 Order Now

Distributor reported inventory date: 2020-06-29

Distributor Name

DIGIKEY

Stock

2485

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

500

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2485

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

190

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-06-29

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.39 / 1k

ECCN (US)

EAR99

Country of Origin

ITALY

ST1PS01EJR

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.39 / 1k

Distributor availability ofST1PS01EJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 217 1 Order Now
RS COMPONENTS EUROPE 500 1 Order Now
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 15000 0 Order Now
Newark Element14 AMERICA 120 0 Order Now
ARROW AMERICA 5000 5000 Order Now
MOUSER WORLDWIDE 5569 1 Order Now
Farnell Element14 EUROPE 296 1 Order Now
ANGLIA Live EUROPE 10100 1 Order Now

Distributor reported inventory date: 2020-06-29

Distributor Name

DIGIKEY

Stock

217

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

500

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

15000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

120

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

5000

Min.Order

5000

Region

AMERICA Order Now

MOUSER

Stock

5569

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

296

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

10100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-06-29

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.39 / 1k

ECCN (US)

EAR99

Country of Origin

ITALY

(*) 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