NCP1508 Datasheet PDF (High Efficiency Synchronous Step-Down DC-DC Converter)

NCP1508 - High Efficiency Synchronous Step-Down DC-DC Converter

Description

Pin No.

1 2 3 4 5 6 7 8 9 Symbol GNDA GNDP LX VCCP VCC FB CB0 CB1 SHD Type Analog Ground Power Ground Analog Output Analog Input Analog Input Analog Input Analog Input Analog Input Analog Input Description Ground connection for the Analog Section of the IC.

Features

http://onsemi. com.

Datasheet Details

Part number	NCP1508
Manufacturer	onsemi
File Size	430.83 KB
Description	High Efficiency Synchronous Step-Down DC-DC Converter
Datasheet	NCP1508 Datasheet

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Full PDF Text Transcription

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www.DataSheet4U.com NCP1508 Up to 500 mA, 1 MHz, High Efficiency Synchronous Step−Down DC−DC Converter in DFN Package The NCP1508 step−down PWM DC−DC converter is optimized for portable applications powered from 1−cell Li−ion or 3 cell Alkaline/NiCd/NiMH batteries. This DC−DC converter utilizes a current−mode control architecture for easy compensation and better line regulation. It also uses synchronous rectification to increase efficiency and reduce external part count. The NCP1508 optimizes efficiency in light load conditions when switched from a normal PWM mode to a “pulsed switching” mode. The device also has a built−in 1 MHz (nominal) oscillator for the PWM circuitry, or it can be synchronized to an external 500 kHz to 1000 kHz clock signal.

Published: Jan 16, 2007 |