MCP1630DM-DDBK4 Microchip Technology, MCP1630DM-DDBK4 Datasheet - Page 9

• 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

1.1
© 2006 Microchip Technology Inc.
INTRODUCTION
The proliferation of distributed power supplies is expected to accelerate their use in
future generation cars and continue to incorporate increasingly complex electronic
systems. Distributed power supplies or "point-of-load" power supplies are being used
increasingly through out. These power supply units (PSUs) are responsible for
stepping up (or down) the input bus voltage, to power a multitude of electronic
subsystems. Examples of these electronic systems are collision avoidance radar,
adaptive cruise control, tire pressure monitoring, navigation systems, hands-free
cellular phones, and other wireless connectivity.
The majority of mid- to high-end automobiles produced today come with a DVD-based
GPS navigation system as standard equipment. However, designing a power supply to
handle all the different voltage rails within such a system can prove to be as complex
as designing the power-supply system for a notebook PC. The 5V and 3.3V rails are
typically the system bus. The 1.5V and 1.2V rails are used to power the CPU and
DSP-core voltages, respectively. The power levels of these two rails are usually
between 3W and 5W each.
Automotive subsystems with their inherent high voltage transients and high efficiency
requirements place increasing demands on power supply designs. These supplies
must provide high power, high efficiency and low noise from a very compact footprint
and must maintain a high efficiency over a wide range of operational input voltages.
The MCP1630/MCP1630V High-Speed, Microcontroller-Adaptable Pulse Width
Modulator is capable of maintaining output regulation with no adverse effects on sys-
tem performance or reliability. The MCP1630 Automotive Input Triple Output Converter
Demo Board provides a better choice for automotive application design and providing
high efficiency and also providing a tight Line, Load and Cross regulation for the three
outputs.
This chapter covers the following topics.
• What is the MCP1630 Automotive Input Triple Output Converter Demo Board?
• What the MCP1630 Automotive Input Triple Output Converter Demo Board Kit
FIGURE 1-1:
Block Diagram.
includes.
6.5V to 40V
Voltage
Chapter 1. Product Overview
Input
PIC12F683 for Osc Pulses, Reference
Voltage and ON/OFF Control
MCP1630 Automotive Input Triple Output Converter Demo Board
Regulator
Voltage
MCP1630 AUTOMOTIVE INPUT
TRIPLE OUTPUT CONVERTER
DEMO BOARD USER’S GUIDE
Speed, Microcontroller -
Adaptable, Pulse width
MCP1630/V High-
Modulator
Feedback
Loop
1.2V/600 mA
4.7V/150 mA
3.3V/1.2AV
Converter
DS51627A-page 5
SEPIC
Load