MCP1603EV Microchip Technology, MCP1603EV Datasheet - Page 9

• Manufacturer Part Number: MCP1603EV
• Description: BOARD EVAL BUCK CONV MCP1603
• Manufacturer: Microchip Technology
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of MCP1603EV

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 0.8V, 1.2V, 1.8V, 2.5V, or 3.3V
• Current - Output: 500mA
• Voltage - Input: 2.7 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 2MHz
• Board Type: Fully Populated
• Utilized Ic / Part: MCP1603
• Silicon Manufacturer: Microchip
• Application Sub Type: Buck Converter
• Kit Application Type: Power Management - Voltage Regulator
• Silicon Core Number: MCP1603
• Input Voltage: 2.7 V to 5.5 V
• Output Voltage: 0.8 V to 3.3 V
• Product: Power Management Modules
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: MCP1603
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.1
© 2007 Microchip Technology Inc.
INTRODUCTION
Step-down converter choices include a variety of linear and switching regulators. The
MCP1603 500 mA synchronous buck regulator provides a low profile, cost effective,
and efficient solution for devices like cellular telephones, USB-powered devices and
hand held instruments. The device provides a solution with minimal board space
because of the high-frequency operation, which reduces the size requirements of the
external inductor and capacitor and the 1 mm maximum height TSOT package.
The MCP1603 switches at a fixed frequency of 2.0 MHz when operating at a heavy
load. This provides a low-noise, small size solution. When operating at light loads, the
MCP1603 changes operation to a pulse frequency modulation (PFM) mode to minimize
quiescent current drawn from the input source. No intervention is necessary for smooth
transition from one mode to another.
This chapter covers the following topics.
• "What is the MCP1603 Buck Converter Evaluation Board?”
• "What the MCP1603 Buck Converter Evaluation Board Kit includes.”
FIGURE 1-1:
Chapter 1. Product Overview
2.7V - 5.5V
Voltage
Input
EVALUATION BOARD USER’S GUIDE
MCP1603 Buck Converter Evaluation Board Block Diagram.
MCP1603
Regulator
Buck
MCP1603 BUCK CONVERTER
Switches
Setting
V
OUT
(maximum)
500 mA
DS51652A-page 5
V
OUT