MCP1663 9V/12V/24V OUTPUT

BOOST REGULATOR EVALUATION

BOARD USER’S GUIDE

 2015 Microchip Technology Inc.

DS50002364A-page 11

Chapter 1. Product Overview

1.1

INTRODUCTION

This chapter provides an overview of the MCP1663 9V/12V/24V Output Boost

Regulator Evaluation Board and covers the following topics:

• MCP1663 Short Overview

• What is the MCP1663 9V/12V/24V Output Boost Regulator Evaluation Board?

• What the MCP1663 9V/12V/24V Output Boost Regulator Evaluation Board

Contains

1.2

MCP1663 DEVICE OVERVIEW

The MCP1663 is a compact, high-efficiency, fixed-frequency, non-synchronous step-up

DC/DC converter which integrates a 36V, 400 m

 switch. This product provides a

space-efficient high voltage step-up, easy-to-use power supply solution. The MCP1663

Lithium Primary, Ni-Cd, Ni-MH batteries, or Li-Ion or Li-Polymer batteries.

The MCP1663 operates in Pulse-Width Modulation (PWM), at a fixed 500 kHz

switching frequency. The device features an under-voltage lockout (UVLO) which

discharged batteries. The MCP1663 starts its normal operation at 2.3V input voltage

For standby applications, MCP1663 can be put in Shutdown by pulling the EN pin to

GND. The device will stop switching and will consume a few µA of input current

(including feedback divider current; the device consumes 300 nA typical). In the Boost

configuration, the input voltage will be bypassed to output through the inductor and

Schottky diode.

MCP1663 also provides over-voltage protection (OVP) in the event of:

• Short-circuit of the feedback pin to GND

• Disconnected feedback divider

In these conditions, the OVP function will stop the internal driver and prevent damage

to the device. This feature is disabled during the start-up sequence and Thermal

Shutdown state.

The goal of the MCP1663 9V/12V/24V Output Boost Regulator Evaluation Board is to

demonstrate the higher output voltage and output current capabilities of the MCP1663

Boost Converter.