ST1PS01

ST1PS01 Datasheet 400 mA nano-quiescent synchronous step-down converter with digital voltage selection and Power Good Product status link ST1PS01 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: 0.625 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 Applications Wearable applications Personal tracking monitors Smart watches, sport bands Energy harvesting, wireless sensors Wearable and fitness accessories Industrial sensors, portable low power devices Single cell Li-Ion battery applications Bluetooth® low energy Zigbee Description 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 0.625 V to 3.3 V can be dynamically selected. Thanks to...