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 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.

ST1PS01BJR屬于集成電路（IC） > 穩(wěn)壓器 - DC-DC 開關穩(wěn)壓器。意法半導體（ST）集團制造生產(chǎn)的ST1PS01BJR穩(wěn)壓器 - DC-DC 開關穩(wěn)壓器DC-DC 開關穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級設備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關元件，設備提供的電力會通過該元件。