MCP1612EV#1: 0.8V, 1.7V, 2.4V, or 3.3V @ 1A; Vout+0.5 ~ 5.5V in

Summary

This Synchronous Buck Evaluation Board features Microchip's 1A 1.4MHz synchronous buck regulator in two buck converter applications.

The first application uses the MCP1612 in the 8-leaded MSOP package. This converter has four (0.8V, 1.0V, 1.2V, and 1.4V) selectable output voltages available.

The second application features the MCP1612 in the 8-leaded DFN package. This converter also has four (0.8V, 1.7V, 2.4V, and 3.3V) selectable output voltages. A shutdown terminal is also provided for each converter.

Features:
- 8-lead MSOP and 8-lead DFN packages for full part evaluation.
- Each circuit is capable of delivering 1A of continuous output current.
- Seven different output voltages are available.
- Shutdown terminal for evaluating startup and shutdown operation.

Specifications

Manufacturer	Microchip Technology
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	MCP1612EV-ND
Eval Board Supplier	Microchip Technology
Eval Board	ABC
Topology	Step Down
Outputs and Type	1 Non-Isolated
Output Voltage: Factory Set	0.8 V 1.7 V 2.4 V 3.3 V
Current Out	1 A
Voltage In	2.7 ~ 5.5 V
Efficiency @ Conditions	>90%, 5 Vin, 3.3V @ 80 ~ 500 mA >90%, 3.3Vin, 2.5 V @ 40 ~ 250 mA >80%, 5 Vin, 3.3 V @ 30 mA~ 1 A Out >80%, 5 Vin, 2.5 V @ 45 mA~ 1 A Out >80%, 3.3V in, 1.8 V @ 30 ~ 600 mA Out
Voltage Out Range	0.8 ~ Vin (-0.5V)
Features	Shutdown, Enable, Standby Soft Start Under Voltage Protection, Brown-Out
Switching Frequency	1.4 MHz
Standby Current [Typical]	10 nA
Quiescent Current [Typical]	5 mA
Component Count + Extras	11 + 6
Internal Switch	Yes
Design Author	Microchip
Application / Target Market	Cellular Phone Computers Medical Point of Load (PoL) Set-Top Boxes Telecom USB Powered Devices
Main I.C. Base Part	MCP1612
Standby Current [Maximum]	1 µA
Quiescent Current [Maximum]	7 mA
Date Created By Author
Date Added To Library	2011-03