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NCP1550 Datasheet - ON

NCP1550_ONSemiconductor.pdf

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Datasheet Details

Part number:

NCP1550

Manufacturer:

ON

File Size:

197.67 KB

Description:

600 khz pwm/pfm step-down dc-dc controller.

NCP1550, 600 kHz PWM/PFM Step-Down DC-DC Controller

Pin Symbol Description 1 CE Chip Enable pin, active high (internal pullup current source).

By connecting this pin to GND, the switching operation of the controller will be stopped.

2 GND Ground Connection 3 VOUT Output voltage monitoring input.

This pin must be connected to the regulated out

NCP1550 600 kHz PWM/PFM Step Down DC DC Controller The NCP1550 is a monolithic micropower high frequency voltage mode step down controller IC, specially designed for battery operated hand held electronic products.

With appropriate external P type MOSFET, the device can provide up to 2.0 A loading current with high conversion efficiency.

The device operates in Constant Frequency PWM mode at normal operation, that ensures low output ripple noise, an

NCP1550 Features

* of Chip Enable to reduce IC Off

* State current and integrated feedback resistor network, make it the best choice for portable applications. The device is designed to operate for voltage regulation with minimum external components and board space. This device is available in a TSOP

* 5 p

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