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Microchip Technology ADM00352 User Manual

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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:
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
µ
F
C
IN
10
µ
F
L
1
15
µ
H
BOOST
31.2 K
10 K
EN
1N4148
40V
SCHOTTKY
DIODE
Cboost
100 nF