NCP1579 Datasheet PDF - ON Semiconductor Low Voltage Synchronous Buck Controller Specs

NCP1579 - Low Voltage Synchronous Buck Controller

Datasheet Summary

Description

Pin No.

1 BST Supply rail for the floating top gate driver.

To form a boost circuit, use an external diode to bring the desired input voltage to this pin (cathode connected to BST pin).

Features

of the gate driver include adaptive non.
overlap circuitry. The device also incorporates an externally compensated error amplifier and a capacitor programmable soft.
start function. Protection features include programmable short circuit protection and undervoltage lockout (UVLO). The NCP1579 comes in an 8.
pin SOIC package. Features.
Input Voltage Range from 4.5 to 13.2 V.
275 kHz Internal Oscillator.
Boost Pin Operates to 30 V.
Voltage Mo.

Datasheet Details

Part number	NCP1579
Manufacturer	ON Semiconductor
File Size	140.86 KB
Description	Low Voltage Synchronous Buck Controller
Datasheet	NCP1579 Datasheet
Additional preview pages of the NCP1579 datasheet.

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Full PDF Text Transcription

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NCP1579 Low Voltage Synchronous Buck Controller The NCP1579 is a low cost PWM controller designed to operate from a 5 V or 12 V supply. This device is capable of producing an output voltage as low as 0.8 V. This 8−pin device provides an optimal level of integration to reduce size and cost of the power supply. The NCP1579 provides a 1 A gate driver design and an internally set 275 kHz oscillator. In addition to the 1 A gate drive capability, other efficiency enhancing features of the gate driver include adaptive non−overlap circuitry. The device also incorporates an externally compensated error amplifier and a capacitor programmable soft−start function. Protection features include programmable short circuit protection and undervoltage lockout (UVLO).

Published: Feb 24, 2011 |