description
The NCP1400A Series is a micropower fixed frequency pulse width modulated step-up DC-DC converter designed to power a portable device from a one or two battery pack. These periods can be designed to start with a 0.8V battery voltage and can be as low as 0.2V or less during operation. With four components, this series can be implemented in a simple way to achieve a high efficiency converter with an output current capacity of up to 100mA. Each device includes an on-chip oscillator, pulse width modulation controller, and phase compensation error amplifier for discontinuous mode to ensure converter stability, soft start, voltage reference, drive device, and finite current protection. Power MOSFET switch. Chip enable features are also provided to power down the converter to extend battery life. The NCP1400 device family has five standard regulated output voltages. Other output voltage devices can be fabricated from 1.8V to 4.9V at 100mA intervals.
NCP1400A pin arrangement and marking diagram:
Very low starting voltage of ☉0.8V ☉ running below 0.2V ☉ only four peripheral components are required to realize simple and efficient converter ☉ output current capacity up to 100mA ☉ fixed frequency pulse width modulation operation ☉ phase compensation error amplifier makes converter Stable operation ☉ chip enables power-off capability to extend battery life ☉ lead-free package
Application areas Cellular phones, pagers, personal digital assistants, electronic game consoles, digital cameras, video cameras, handheld instruments
Typical application circuit of the NCP1400A:
(Please read the PDF for details)
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Hangzhou Saintish Technology Co.,Ltd. , https://www.saintishtech.com