MCP1603EV Microchip Technology, MCP1603EV Datasheet - Page 11

• 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

2.1
2.2
2.3
© 2007 Microchip Technology Inc.
INTRODUCTION
FEATURES
GETTING STARTED
Chapter 2. Installation and Operation
The MCP1603 Buck Converter Evaluation Board is designed to demonstrate
Microchip’s MCP1603 in an adjustable output voltage configuration. The MCP1603 is
a 500 mA synchronous buck regulator that features both Pulse Frequency Modulation
(PFM) and Pulse Width Modulation (PWM). The PFM mode is used at light loads to
improve system efficiency while the 2.0 MHz PWM mode is entered at heavy loads.
The transition between PFM and PWM modes automatically occurs without any
external intervention. The MCP1603 is available in both adjustable parts that require
an external divider to set the output voltage and fixed output voltage parts.
The high switching speed and TSOT package (1 mm maximum height) make the
MCP1603 ideal for space constrained applications that require an efficient stepped
down voltage.
The MCP1603 Buck Converter Evaluation Board has the following features:
• Compact size and low profile 500 mA converter design.
• Wide Input voltage range from 2.7V to 5.5V.
• Five different output voltage settings: 0.8V, 1.2V, 1.8V, 2.5V, and 3.3V.
• Test points for connecting input voltage source and external load.
The MCP1603 Buck Converter Evaluation Board is fully assembled and tested for
evaluating the MCP1603 device. The board requires the use of an external input
voltage source of 2.7V to 5.5V and an external load capable of 500 mA.
2.3.1
2.3.1.1
1. Connect the positive side of the input source (+) to TP1 (VIN).
2. Connect the negative or return side (-) of input source to TP2 (GND). Refer to
Figure 2-1. The input voltage should be limited from 2.7V to 5.5V range.
Power Input and Output Connection
POWERING THE MCP1603 BUCK CONVERTER EVALUATION BOARD
EVALUATION BOARD USER’S GUIDE
MCP1603 BUCK CONVERTER
DS51652A-page 7