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ST1PS01AJR

DC/DC Synchronous Buck Regulator, Adjustable, 1.8V to 5.5V, 1.8V to 3.3V/0.4A Out, 2MHz, Flip Chip-8

ST1PS01AJR - DC/DC Synchronous Buck Regulator, Adjustable, 1.8V to 5.5V, 1.8V to 3.3V/0.4A Out, 2MHz, Flip Chip-8

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Manufacturer Part No:
ST1PS01AJR
Order Code:
3018774
Technical Datasheet:
ST1PS01AJR   Datasheet
See all Technical Docs

Product Overview

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.
  • 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)

Applications

Wearables, Portable Devices, Power Management

Product Information

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:
Synchronous Buck (Step Down)

:
1.8V

:
5.5V

:
1Outputs

:
Flip Chip

:
8Pins

:
400mA

:
1.8V

:
3.3V

:
2MHz

:
85°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (1)

Packaging type Re-reel

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