Design contains obsolete parts

NCP1400AV50GEVB: 5V @ 100mA, 0.9 ~ 3V in

Summary

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 startup 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.

Each device consists of an on−chip fixed frequency oscillator, pulse width modulation controller, phase compensated error amplifier that ensures converter stability with discontinuous mode operation, soft−start, voltage reference, driver, and power MOSFET switch with current limit protection. Additionally, a chip enable feature is provided to power down the converter for extended battery life.

While this board features the 5V version, the NCP1400A device series are available with seven standard regulated output voltages.

Specifications

Manufacturer onsemi
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Normally In Stock
Topology Step Up
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 5 V
Current Out 100 mA
Voltage In 0.9 ~ 3 V
Efficiency @ Conditions >78%, 3V in, 4 ~ 100 mA
>75%, 1.5V in, 2 ~30 mA
>68%, 2V in, 2 ~ 94 mA
Voltage Out Range 1.8 ~ 5 V
Features Current Limit (Adj. or Fixed)
Light Load Mode
Over Current Protection
Shutdown, Enable, Standby
Soft Start
Switching Frequency 180 kHz
Standby Current [Typical] 600 nA
Quiescent Current [Typical] 7 µA
Component Count + Extras 5 + 5
Internal Switch Yes
Design Author ONSemiconductor
Application / Target Market Cell Phones
Digital Cameras
Flashlight / Torch
Portable Devices
Standby Current [Maximum] 1.5 µA
Quiescent Current [Maximum] 15 µA
Main I.C. Base Part NCP1400A
Date Created By Author
Date Added To Library 2011-03

Media