MCHPMCP1703A 5.0V LDO Regulator

Overview

The MCP1703AT-5002E/MBVAO is a low-dropout linear voltage regulator from Microchip that provides a fixed 5.0 V output. It is intended for low-quiescent-current power rails where a simple, compact regulator is needed from a higher input voltage. This part is a good fit for small embedded and battery-powered designs that do not need the efficiency or switching noise of a DC-DC converter.

Why Choose This Part

This part combines a fixed 5.0 V output with low quiescent current, which helps reduce standby drain in always-on or battery-powered designs. As a linear regulator, it is simple to apply and has low output noise compared with switching regulators. It is also a compact choice when the input voltage is already close to the required rail and power dissipation is acceptable.

Applications

Getting Started

Start by checking the input voltage range, dropout margin, and thermal dissipation for your load current and expected input voltage. Add the recommended input and output capacitors per the Microchip datasheet, and place them close to the regulator pins for stable operation. For prototyping, this kind of LDO is easy to test on a breadboard or custom PCB; for production, verify the package footprint and soldering constraints for the specific mounting variant.

MCP1703 Family

Comparing specs that differ across variants. The current part is highlighted.

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