ADM00352: 3.3V @ 600mA, 4 ~ 30V in

Summary

The MCP16301 device is a highly integrated, high-efficiency, fixed frequency, step-down DC-DC converter in a popular 6-pin SOT-23 package, that operates from input voltage sources up to 30V. The integrated features include a high-side switch, fixed frequency peak current mode control, internal compensation, peak current limit and overtemperature protection. Minimal external components are needed to develop a high-efficiency power supply, operating from a high-voltage input.

High-converter efficiency is achieved by integrating the current limited, low resistance, high-speed N-Channel MOSFET and associated drive circuitry. High-switching frequency minimizes the size of the external filtering components, resulting in a small solution size.

The MCP16301 600 mA Demo Board is designed to operate from a 4V to 30V input and regulate the output to 3.3V while delivering 600 mA of load current. Test points for input power and load are provided to demonstrate the capability of the demo board over the entire range. The MCP16301 600 mA Demo Board was designed using small surface-mount components to show application size for a high voltage 600 mA design.

Specifications

Manufacturer	Microchip Technology
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	ADM00352-ND
Eval Board Supplier	Microchip Technology
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	3.3 V
Current Out	600 mA
Voltage In	4 ~ 30 V
Efficiency @ Conditions	>92%, 6V in, 5V @ 50 ~ 600 mA >88%, 12V in, 5V @ 200 ~ 600 mA >87%, 6V in, 3.3V @ 75 ~ 600 mA >80%, 30V in, 5V @ 225 ~ 600 mA >80%, 12V in, 3.3V @ 100 ~ 600 mA >75%, 30V in, 3.3V @ 200 ~ 600 mA
Voltage Out Range	2 ~ 15 V
Features	Current Limit (Adj. or Fixed) Electrolytic Free Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	500 kHz
Standby Current [Typical]	7 µA
Quiescent Current [Typical]	2 mA
Component Count + Extras	18 + 4
Internal Switch	Yes
Design Author	Microchip Technology
Application / Target Market	Automotive Computers FPGA / DSP / Processors Medical Point of Load (PoL) Portable Devices RF: Metering Set-Top Boxes
Standby Current [Maximum]	10 µA
Quiescent Current [Maximum]	7.5 mA
Main I.C. Base Part	MCP16301
Date Created By Author
Date Added To Library	2012-02