SC485 Dual Synchronous Buck

Semtech

Description

Dual Synchronous Buck For www.DataSheet4U.com Dynamic Voltage Transitioning POWER MANAGEMENT .
The SC485 is a dual output constant on-time synchronous-buck PWM controller intended for use in notebook computers and graphics cards.

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Datasheet Specifications

Part number: SC485
Manufacturer: Semtech
File Size: 605.52 KB
Datasheet: SC485_Semtech.pdf
Description: Dual Synchronous Buck

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 desi

Applications

* Graphics cards Embedded graphics processors High performance processors Typical Application Circuit VBAT 5VSUS 5VSUS VBAT D1 R1 RTON1 R2 10R 22 23 VOUT1 R3 R5 24 25 26 27 R7 28 U1 EN/PSV1 TON1 VOUT1 VCCA1 FB1 PGD1 VSSA1 SC485 BST1 DH1 LX1 ILIM1 VDDP1 DL1 PGND1 7 6 5 4 3 Q2 2 1 C4 1uF R6 VSSA1 0R R4

SC485 Distributors

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SC485 Dual Synchronous Buck Semtech

Semtech SC485-like datasheet