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SC485 - Dual Synchronous Buck

Description

The SC485 is a dual output constant on-time synchronous-buck PWM controller intended for use in notebook computers and graphics cards.

Features

  • include high efficiency and a fast dynamic response with no minimum on-time. The excellent transient response means that SC485 based solutions will require less output capacitance than competing fixed frequency converters. The two outputs are designed according to their target role. Output 1 is designed to power IO or other static rails, whereas output 2 is designed to power rails requiring dynamic voltage transitioning. Output 2 has a tighter DC accuracy of 0.85% combined with a higher OVP thre.

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Datasheet Details

Part number SC485
Manufacturer SEMTECH
File Size 605.52 KB
Description Dual Synchronous Buck
Datasheet download datasheet SC485 Datasheet

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Full PDF Text Transcription

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Dual Synchronous Buck For www.DataSheet4U.com Dynamic Voltage Transitioning POWER MANAGEMENT Description The SC485 is a dual output constant on-time synchronous-buck PWM controller intended for use in notebook computers and graphics cards. Features include high efficiency and a fast dynamic response with no minimum on-time. The excellent transient response means that SC485 based solutions will require less output capacitance than competing fixed frequency converters. The two outputs are designed according to their target role. Output 1 is designed to power IO or other static rails, whereas output 2 is designed to power rails requiring dynamic voltage transitioning. Output 2 has a tighter DC accuracy of 0.
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