MCP1256/7/8/9EV (#1): 3.3V @ 100mA, 1.8 ~ 3.6V in

Summary

The MCP1256/7/8/9 Charge Pump Evaluation Board is an evaluation and demonstration tool for Microchip Technology’s MCP1256/7/8/9 Regulated 3.3V, Low-Ripple Charge Pumps with low-operating current SLEEP mode or BYPASS mode. The design provides for dynamic versatility.

The MCP1256/7/8/9 Charge Pump Evaluation Board is setup to evaluate simple, stand-alone, DC-to-DC conversion. Two evaluation circuits are provided, demonstrating the versatility of the MCP1256/7/8/9 device family. One evaluation circuit utilizes the MCP1256, demonstrating the SLEEP mode feature along with a power good indication. The other evaluation circuit utilizes the MCP1259, demonstrating the unique BYPASS mode feature, along with a low battery indication.

When connected, the MCP1256/7/8/9 devices can be evaluated in a variety of applications.

Specifications

Manufacturer	Microchip Technology
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	MCP1256/7/8/9EV-ND
Eval Board Supplier	Microchip Technology
Eval Board	Normally In Stock
Topology	Step Up/Down Switch Cap, Charge Pump
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	3.3 V
Current Out	100 mA
Voltage In	1.8 ~ 3.6 V
Efficiency @ Conditions	>84%, 1.8V in, 3.3V @ 10 ~ 50 mA >76%, 2.8V in, 3.3V @ 50 ~ 100 mA
Voltage Out Range	- Fixed
Features	Electrolytic Free Light Load Mode Power Good Output Short Circuit Protection Shutdown, Enable, Standby Soft Start Thermal Protection
Switching Frequency	650 kHz
Standby Current [Typical]	250 nA
Quiescent Current [Typical]	1.4 mA
Component Count + Extras	7 + 7
Internal Switch	Yes
Design Author	Microchip Technology
Application / Target Market	Portable Devices
Standby Current [Maximum]	2 µA
Quiescent Current [Maximum]	2.3 mA
Main I.C. Base Part	MCP1256
Date Created By Author	2006-02
Date Added To Library	2012-10