User manual

MCP16301 600 mA DEMO BOARD
USER’S GUIDE
 2011 Microchip Technology Inc. DS51978A-page 9
Chapter 1. Product Overview
1.1 INTRODUCTION
This chapter provides an overview of the MCP16301 600 mA Demo Board and covers
the following topics:
• MCP16301 Short Overview
• What is the MCP16301 600 mA Demo Board?
• MCP16301 600 mA Demo Board Kit Contents
1.2 MCP16301 SHORT OVERVIEW
The MCP16301 is a highly integrated, high-efficiency, fixed frequency, step-down
DC-DC converter in a popular 6-pin SOT23 package that operates from input voltage
sources up to 30V. Integrated features include a high-side switch, fixed-frequency
peak-current mode control, internal compensation, peak current limit and over-temper-
ature protection. Minimal external components are necessary to develop a complete
step-down DC-DC converter power supply.
High converter efficiency is achieved by integrating the current limited, low resistance,
high-speed N-Channel MOSFET and associated drive circuitry. High switching fre-
quency minimizes the size of external filtering components resulting in a small solution
size.
The MCP16301 can supply 600 mA of continuous current while regulating the output
voltage from 2.0V to 15V. An integrated high performance peak-current mode architec-
ture keeps the output voltage tightly regulated, even during input voltage steps and
output current transient conditions that are common in power systems.
FIGURE 1-1: Typical MCP16301 Step Down Application.
V
IN
GND
V
FB
SW
V
IN
4.5V To 30V
V
OUT
3.3V @ 600 mA
C
OUT
2 X10 µF
C
IN
10 µF
L
1
15 µH
BOOST
31.2 K
10 K
EN
1N4148
40V
SCHOTTKY
DIODE
Cboost
100 nF