MCP16321 EVALUATION BOARD

USER’S GUIDE

 2011 Microchip Technology Inc.

DS52024A-page 9

Chapter 1. Product Overview

1.1

INTRODUCTION

This chapter provides an overview of the MCP16321 Evaluation Board and covers the

following topics:

• MCP16321 Short Overview

• What is the MCP16321 Evaluation Board?

• MCP16321 Evaluation Board kit contents

1.2

MCP16321 SHORT OVERVIEW

The MCP16321 is a highly integrated, 1A output current capable, high-efficiency, fixed

frequency, synchronous, step-down DC-DC converter in a popular 3 mm x 3 mm

16-lead QFN package that operates from input voltage sources up to 24V. Integrated

features include a low resistance high-side switch, low resistance low-side switch,

1.0 Mhz fixed-frequency peak-current mode control, internal compensation, power

Minimal external components are necessary to develop a complete step-down DC-DC

High converter efficiency is achieved by integrating the current limited, low resistance,

high-speed N-Channel MOSFETs and associated drive circuitry. Incorporating both the

upper and lower switches reduces the need for external components. High switching

frequency minimizes the size of external filtering components resulting in an overall

small solution size.

The MCP16321 can supply 1A of continuous current while regulating the output voltage

from 0.9V to 5V. An integrated high performance peak-current mode architecture keeps

the output voltage tightly regulated, even during input voltage steps and output current

transient conditions that are common in power systems.

is set to 3.0V using an external resistor divider. The evaluation board was developed

to accommodate the MCP16321 fixed output voltage options.