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Evaluation board based on ST1PS01AJR 400 mA nanostatic synchronous buck converter

STEVAL-1PS01AJR

Overview

The STEVAL-1PS01AJR evaluation board features the ST1PS01 miniaturized, nano-quiescent, synchronous step-down converter designed for applications where high efficiency, PCB size and thickness are the key factors. The converter can provide up to 400 mA output current with a 1.8 V to 5.5 V input voltage range. The output voltage can be dynamically adjusted from 1.9 V to 2.8 V using two digital control inputs.

Thanks to the enhanced peak current control (PCC), the ST1PS01 can achieve very high efficiency conversion using only a 2.2 µH inductor and two small capacitors. Furthermore, the converter's advanced design circuitry reduces quiescent current to a minimum.

Main features

1.8 V to 5.5 V input operating range
Up to 400 mA output current capability
Tiny external components: L=2.2 µH typ.
Selectable output voltages: 1.9 V to 2.8 V
Output voltage Power Good
Dynamic output voltage selection (D0, D1)
Suitable for the following 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
WEEE and RoHS compliant (hardware only)

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-07 19:55:25

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