Linear Technology LTC1983-5 100mA Negative 5V Power Supply Quick Start Guide

About this manual

This guide explains how to set up and operate the LTC1983-5 charge pump inverter, which generates a regulated -5V output at up to 100mA from a 3V to 6V input. It is designed for compact applications like portable devices and single-supply systems needing low quiescent current. The circuit uses small surface-mount components for minimal board space.

To use, connect input power between Vin and GND, attach a load between GND and Vout, and toggle JP1 to enable or disable operation.

What's inside

• QUICK START PROCEDURE
• Figure 1. Proper Measurement Equipment Setup

Frequently asked questions

What output voltage and current does the LTC1983-5 demonstration circuit produce?

The circuit produces a regulated negative –5V output voltage at up to 100mA of output current.

What is the acceptable input voltage range for the circuit?

The input voltage is limited to between 3V to 5.5V.