NCP4331 - Synchronous Buck Controller

Product Overview

ON Semiconductor

Datasheet Details

Part number	NCP4331
Manufacturer	ON Semiconductor
File Size	198.54 KB
Description	Synchronous Buck Controller
Datasheet	NCP4331 Datasheet
Additional preview pages of the NCP4331 datasheet.

Product details

Description

Pin Number Name Function 1 CSout Pin 1 is the output of the auxiliary error amplifier embedded in the NCP4331. This allows for the prevention of excessive coil or load current.Pin 1 can clamp the main error amplifier output.Controlling the coil current by this auxiliary error amplifier can provide a CCCV characteristic.2 CSin- Inverting input of the auxiliary error amplifier that is generally used to control the coil current.3 CSin+ Noninverting input of the auxiliary error am

Features

ăHigh Gate Drive Capability.
ăBootstrap for N-MOSFET High-Side Drive.
ăTwo Embedded Error Amplifiers Allowing Constant Current Constant Voltage (CCCV) Operation.
ă±1.5% Regulation Voltage Reference Over 0°C to 85°C Temperature Range.
ăProgrammable Soft-Start.
ăThermal Shutdown for Overtemperature Protection.
ăPWM Operation Synchronized to the Converter Frequency.
ăOver-Lap Management for Soft Switching.
ăInternal Regulator.

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Published: May 4, 2009 |