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NCP1530 Datasheet - ON

NCP1530_ONSemiconductor.pdf

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Datasheet Details

Part number:

NCP1530

Manufacturer:

ON

File Size:

132.05 KB

Description:

600ma pwm/pfm step-down converter.

NCP1530, 600mA PWM/PFM Step-Down Converter

Pin Symbol Description 1 VIN Unregulated Supply Input.

2 SYN Oscillator Synchronization and Mode Selection Input.

SYNC = GND (Automatic PWM/PFM mode) The converter operates at 600 kHz fixed *frequency PWM mode primarily, and automatically switches to variable *frequency PFM mode

NCP1530 600 mA PWM/PFM Step Down Converter with External Synchronization Pin The NCP1530 is a PWM/PFM non synchronous step down (Buck) DC DC converter for usage in systems supplied from 1 cell Li ion, or 2 or more cells Alkaline/NiCd/NiMH batteries.

It can operate in Constant Frequency PWM mode or PWM/PFM mode in which the controller will automatically switch to PFM mode operation at low output loads to maintain high efficiency.

The switch

NCP1530 Features

* include built

* in undervoltage lockout, internal thermal shutdown, an externally programmable soft

* start time and output current limit protection. The NCP1530 operates from a maximum input voltage of 5.0 V and is available in a space saving, low profile Micro8™ package. Features

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