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SC1486A - Dual Synchronous Buck DDR and DDR2 Power Supply Controller

Description

The SC1486A is a dual output constant on-time synchronous buck PWM controller optimized for cost effective mobile DDR and DDR2 applications.

Features

  • include high efficiency, a fast dynamic response with no minimum on time, a REFIN input and a buffered REFOUT pin capable of sourcing 3mA. The excellent transient response means that SC1486A based solutions will require less output capacitance than competing fixed frequency converters. The output voltage of the first controller can be adjusted from 0.5V to VCCA. In DDR.

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Datasheet Details

Part number SC1486A
Manufacturer SEMTECH
File Size 655.31 KB
Description Dual Synchronous Buck DDR and DDR2 Power Supply Controller
Datasheet download datasheet SC1486A Datasheet

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www.DataSheet4U.com Dual Synchronous Buck DDR and DDR2 Power Supply Controller POWER MANAGEMENT Description The SC1486A is a dual output constant on-time synchronous buck PWM controller optimized for cost effective mobile DDR and DDR2 applications. Features include high efficiency, a fast dynamic response with no minimum on time, a REFIN input and a buffered REFOUT pin capable of sourcing 3mA. The excellent transient response means that SC1486A based solutions will require less output capacitance than competing fixed frequency converters. The output voltage of the first controller can be adjusted from 0.5V to VCCA. In DDR applications, this voltage is set to 2.5 volts, and in DDR2, 1.8V. A resistor divider from this supply is used to drive the REFIN pin of the second controller.
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