sigma

ST1S15-Based 1.82V-500mA, 6 MHz Synchronous Buck Converter

STEVAL-ISA131V1

Overview

The STEVAL-ISA131V1 is a product evaluation board designed around the ST1S15, a high efficiency miniaturized step-down converter capable to providing 500 mA of output current from an input voltage from 2.3 V to 5.5 V.

This converter works at a 6 MHz switching frequency and is specifically designed for applications where high efficiency and small application area are key factors.

Main features

85% typical efficiency
500 mA output current capability
45 μA typical quiescent current
PFM or PWM operation for best efficiency over entire load range
Ultra-fast load and line transient
Short-circuit and thermal protection
Tiny external components
Auto or forced PWM selection with dedicated pin
ST1S15J18R in Flip-Chip 6-bumps package
RoHS compliant

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

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:2025-05-30 00:41:39

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