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ST1PS02 - 400mA nano-quiescent synchronous step-down converter

Description

The ST1PS02 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.

Features

  • 500 nA input quiescent current at VIN = 3.6 V (not switching).
  • 92% typical efficiency at 10 mA load (VIN = 3.6 V, VOUT = 2.5 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.
  • Settable i.

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Full PDF Text Transcription

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ST1PS02 Datasheet 400 mA nano-quiescent synchronous step-down converter with digital voltage selection, Power Good and AUX switch Product status link ST1PS02 Features • 500 nA input quiescent current at VIN = 3.6 V (not switching) • 92% typical efficiency at 10 mA load (VIN = 3.6 V, VOUT = 2.5 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. • Settable inductor current limitation • Selectable output voltages: 1.0 V to 3.3 V • Output voltage Power Good • ±1.
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