100 mA, Fixed Frequency PWM Step-Up Micropower Switching Regulator

The NCP1400A series are micropower step−up DC to DC converters that are specifically designed for powering portable equipment from one or two cell battery packs. These devices are designed to start−up with a cell voltage of 0.8 V and operate down to less than 0.2 V. With only four external components, this series allows a simple means to implement highly efficient converters that are capable of up to 100 mA of output current.

FEATUREs
• Extremely Low Start−Up Voltage of 0.8 V
• Operation Down to Less than 0.2 V
• Only Four External Components for Simple Highly Efficient Converters
• Up to 100 mA Output Current Capability
• Fixed Frequency Pulse Width Modulation Operation
• Phase Compensated Error Amplifier for Stable Converter Operation
• Chip Enable Power Down Capability for Extended Battery Life
• Pb−Free Packages are Available

Typical Applications
• Cellular Telephones
• Pagers
• Personal Digital Assistants
• Electronic Games
• Digital Cameras
• Camcorders
• Handheld Instruments
• White LED Torch Light