MCP1630DM-DDBK4 Microchip Technology, MCP1630DM-DDBK4 Datasheet - Page 11

• Manufacturer Part Number: MCP1630DM-DDBK4
• Description: BOARD CONV DEMO MCP1630 TRPL-OUT
• Manufacturer: Microchip Technology
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of MCP1630DM-DDBK4

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 3, Non-Isolated
• Voltage - Output: 3.3V, 1.2V, 4.7V
• Current - Output: 1.2A, 600mA, 150mA
• Voltage - Input: 6.5 ~ 40V
• Regulator Topology: Buck
• Frequency - Switching: 250kHz
• Board Type: Fully Populated
• Utilized Ic / Part: MCP1630
• Silicon Manufacturer: Microchip
• Application Sub Type: PWM Controllers
• Kit Application Type: Power Management - Voltage Regulator
• Silicon Core Number: MCP1630, PIC12F683
• Input Voltage: 6.5 V to 40 V
• Output Voltage: 1.2 V to 4.7 V
• Product: Power Management Modules
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: MCP1630, PIC12F683
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

2.1
2.2
© 2006 Microchip Technology Inc.
INTRODUCTION
FEATURES
Chapter 2. Installation and Operation
The MCP1630 Automotive Input Triple Output Converter Demo Board demonstrates
Microchip's high speed pulse width modulator (PWM) used for Automotive application.
When used in conjunction with a microcontroller, the MCP1630 will control the power
system duty cycle to provide regulated output voltage. The PIC12F683 microcontroller
is used to provide oscillator pulses at switching frequency of 250 kHz and set maximum
duty cycle. The MCP1630 generates duty cycle based on various external inputs.
External signals include the input oscillator pulses from PIC12F683, the reference
voltage and the feed back voltage. The output signal is a square-wave pulse given to
drive the MOSFET.
The PIC12F683 microcontroller is programmable, allowing the user to modify or
develop their own firmware routines to further evaluate the MCP1630 in this
application.
The MCP1630 Automotive Input Triple Output Converter Demo Board has the following
features:
• Compact size for a Triple output Converter
• Wide Input voltage range from 6.5V to 40V
• Programmable output voltage and ON/OFF control using the PIC microcontroller
• Provide line regulation, load regulation and cross regulation of ± 5% on V
• High efficiency over entire operating input voltage range
• PIC12F683 is used to generate reference Voltage and Oscillator signal at 250 kHz
• Proprietary features can be added by modifying the firmware contained in the
• Factory programmed source code is available
(3.3V), ± 5% on V
50% to 100%
frequency at maximum duty cycle
PIC12F683
OUT2
(1.2V) and ± 10% on V
MCP1630 AUTOMOTIVE INPUT
TRIPLE OUTPUT CONVERTER
DEMO BOARD USER’S GUIDE
OUT3
(4.7V) for load variation from
DS51627A-page 7
OUT1