MCP1630DM-DDBK1 Microchip Technology, MCP1630DM-DDBK1 Datasheet - Page 11

• Manufacturer Part Number: MCP1630DM-DDBK1
• Description: BOARD DEMO MCP1630 BIAS SUPPLY
• Manufacturer: Microchip Technology
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of MCP1630DM-DDBK1

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 3.3V or 5V
• Current - Output: 1A
• Voltage - Input: 7.2 ~ 11.8V
• Regulator Topology: Buck
• Board Type: Fully Populated
• Utilized Ic / Part: MCP1630
• Input Voltage: 9 V
• Output Voltage: 3.3 V, 5 V
• Product: Power Management Modules
• For Use With/related Products: MCP1630
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2.1
2.2
© 2005 Microchip Technology Inc.
INTRODUCTION
FEATURES
Chapter 2. Installation and Operation
The MCP1630 1A Bias Supply Demo Board demonstrates Microchip’s MCP1630
high-speed Pulse Width Modulator (PWM) used in a step-down, switch-mode, dc-dc
power converter. The MCP1630 is a high-speed, microcontroller-adaptable PWM.
When used in conjunction with a microcontroller, the MCP1630 will control the power
system duty cycle to provide output voltage or current regulation. The PIC10F200
microcontroller can be used to regulate output voltage or current, switching frequency
and maximum duty cycle. The MCP1630 generates duty cycle and provides fast
overcurrent protection based on various external inputs. External signals include the
input oscillator, the reference voltage, the feedback voltage and the current sense. The
output signal is a square-wave pulse. The power train used for the MCP1630 1A Bias
Supply Demo Board is a Single-Ended Primary Inductive Converter (SEPIC).
The MCP1630 1A Bias Supply Demo Board has the following features:
• Selectable regulated output voltage: 3.3V or 5.0V
• Maximum output current: 1A
• Foldback current limiting
• Cycle-by-cycle peak current limit
• Output present indicator
• Soft-start capability by holding the reference voltage low during power-up
• The MCP1630 1A Bias Supply Demo Board has the flexibility to modify the
• Proprietary features can be added by modifying the firmware contained in the
• The factory-programmed source code is available
• Adaptable to environmental effects such as ambient temperature
• Typical efficiency: 85%
regulated output voltage, optimize the soft-start time or disable the output by
modifying the firmware contained in the PIC10F200
PIC10F200
DEMO BOARD USER’S GUIDE
MCP1630 1A BIAS SUPPLY
DS51564A-page 7