RT8857 데이터 시트보기 (PDF) - Richtek Technology

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RT8857

4/3/2/1-Phase PWM Controller with Embedded Drivers for CPU Core Power Supply

Richtek Technology 

RT8857/A

VID5

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

VID4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

VID3

0

0

0

0

0

0

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

Pin Name

VID2

0

0

1

1

1

1

0

0

0

0

1

1

1

1

0

0

0

0

1

1

1

1

0

0

0

0

1

1

1

1

VID1

1

1

0

0

1

1

0

0

1

1

0

0

1

1

0

0

1

1

0

0

1

1

0

0

1

1

0

0

1

1

VID0

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

Nominal Output Voltage DACOUT

0.7375

0.7250

0.7125

0.7000

0.6875

0.6750

0.6625

0.6500

0.6375

0.6250

0.6125

0.6000

0.5875

0.5750

0.5625

0.5500

0.5375

0.5250

0.5125

0.5000

0.4875

0.4750

0.4625

0.4500

0.4375

0.4250

0.4125

0.4000

0.3875

0.3750

Note: (1) 0 : Connected to GND

(2) 1 : Open

(3) The voltage above are load independent for desktop and server platforms. For mobile platforms the voltage above

correspond to zero load current.

www.richtek.com

12

DS8857/A-01 April 2011

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