MCP1630RD-DDBK1 Microchip Technology, MCP1630RD-DDBK1 Datasheet - Page 11

• Manufacturer Part Number: MCP1630RD-DDBK1
• Description: MCP1630 Dual Synchronous Buck Regulator Demo Board DEVTOOL - Analog
• Manufacturer: Microchip Technology
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of MCP1630RD-DDBK1

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 2, Non-Isolated
• Voltage - Output: 1.22 ~ 2.3V, 2.42 ~ 3.39V
• Current - Output: 20A, 20A
• Voltage - Input: 9 ~ 13.5V
• Regulator Topology: Buck
• Frequency - Switching: 500kHz
• Board Type: Fully Populated
• Utilized Ic / Part: MCP1630
• Input Voltage: 12 V
• Interface Type: Ethernet
• Product: Power Management Modules
• 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: MCP1630
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

2.1
2.2
2.3
© 2008 Microchip Technology Inc.
INTRODUCTION
FEATURES
GETTING STARTED
Chapter 2. Installation and Operations
The MCP1630 Dual Buck Reference Design demonstrates Microchip’s MCP1630
high-speed PWM, used in an adjustable, dual-output, buck regulator application.
The MCP1630 is a high-speed, microcontroller-adaptable, PWM that, when used in
conjunction with a microcontroller, will control the power system duty cycle to provide
output voltage regulation. The PIC16F684 microcontroller can be used to regulate
output voltage or current, switching frequency and setting maximum duty cycle.
The MCP1630 generates duty cycle, provides fast overcurrent protection and utilizes
variable external inputs. External signals include the input oscillator and the reference
voltage. The power train signals include the current sense and the feedback voltage.
The output signal is a square-wave pulse. The power train used for the MCP1630 Dual
Buck Reference Design is a dual synchronous buck regulator.
The MCP1630 Dual Buck Reference Design has the following features:
• Input Voltage Range: +9.0V to +13.5V
• Adjustable Output Voltage Capable of Calibration
• Sequencing or Tracking Outputs
• Outputs are180° out of phase, each capable of 20A
• Independent Overcurrent Protection
• Independent Overtemperature Protection
• Input Overvoltage and Undervoltage Lockout (UVLO)
• Power Good Indication (LED) with Adjustable Delay
• Switching Frequency Dithering
The MCP1630 Dual Buck Reference Design is fully assembled and tested over its
range of input voltage, output voltage and output current. This board requires the use
of an external input voltage source (+9.0V to +13.5V) and external load (electronic or
resistive).
Note:
It is recommended that a minimum 300 linear feet per minute of airflow
blown directly across the board to cool the power dissipating components
when operating above 10A loads.
MCP1630 DUAL BUCK
REFERENCE DESIGN
DS51531B-page 7