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

Datasheet Summary

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.

Output voltage monitoring input.

Features

  • of Chip Enable to reduce IC Off.
  • State current and integrated feedback resistor network, make it the best choice for portable.

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Datasheet preview – NCP1550

Datasheet Details

Part number NCP1550
Manufacturer ON
File Size 197.67 KB
Description 600 kHz PWM/PFM Step-Down DC-DC Controller
Datasheet download datasheet NCP1550 Datasheet
Additional preview pages of the NCP1550 datasheet.

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Full PDF Text Transcription

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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, and which will automatically switch to PFM mode at low output loads for higher efficiency. Additionally, value−added features of Chip Enable to reduce IC Off−State current and integrated feedback resistor network, make it the best choice for portable applications.
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