MCP1630DM-DDBS1: 36.5V @ 400mA, 12V in (9 ~ 18V)


The MCP1630 Automotive Input Boost Converter Demo Board demonstrates the use of a conventional boost topology with automotive input. The board also serves as a platform to evaluate the MCP1630/V devices.

The MCP1630/V inputs were developed to be easily attached to the I/O of a microcontroller. The Microcontroller Unit (MCU) supplies the oscillator pulses and reference voltage (VREF) to the MCP1630/V devices to provide the most flexible and adaptable power system. The power system switching frequency and maximum duty cycle are set using the I/O of the MCU. The reference input to the high-speed PWM can be external, a D/A Converter (DAC) output or as simple as an I/O output from the MCU. This enables the power system to adapt to many external signals and variables in order to optimize performance and facilitate calibration.

This board utilizes Microchip's MCP1630/V (high-speed PICmicro® MCU PWM) integrated with PIC12F683 (Flash MCU SOIC8) in automotive input application. Under normal operation, the vehicle voltage at the supply lines ranges between 9V-18V (12V system). The converter is capable of delivering an output voltage of 36.5V at 400 mA load current with maximum power of 14.6W. The line and load regulation is within the regulation band of 3%.


Manufacturer Microchip Technology
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number MCP1630DM-DDBS1-ND
Eval Board Supplier Microchip Technology
Eval Board -
Topology Step Up
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 36.5 V
Current Out 400 mA
Voltage In 9 ~ 18 V
Efficiency @ Conditions - Not Given
Voltage Out Range - Fixed
Switching Frequency 500 kHz
Standby Current [Typical]
Quiescent Current [Typical]
Component Count + Extras 35 + 5
Internal Switch No
Design Author Microchip
Application / Target Market Automotive
Standby Current [Maximum]
Quiescent Current [Maximum]
Main I.C. Base Part MCP1630
Date Created By Author 2005-10
Date Added To Library 2012-09