NCP4331 - Synchronous Buck Controller

ON Semiconductor

NCP4331 Datasheet Preview — Preview of NCP4331 PDF

Datasheet Details

Part number	NCP4331
Manufacturer	ON Semiconductor ↗
File Size	198.54 KB
Description	Synchronous Buck Controller
Datasheet	NCP4331_ONSemiconductor.pdf

NCP4331 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 |