RT8862 데이터 시트보기 (PDF) - Richtek Technology

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RT8862

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

Richtek Technology 

RT8862

Typical Operating Characteristics

Power On from EN/VTT

VOUT

(1V/Div)

EN/VTT

(1V/Div)

PWRGD

(1V/Div)

UGATE

(20V/Div)

VID = 1.4V, ILOAD = 5A

Time (1ms/Div)

VOUT

(1V/Div)

EN/VTT

(1V/Div)

PWRGD

(1V/Div)

UGATE

(20V/Div)

Dynamic VID Up

Power Off from EN/VTT

VID = 1.4V, ILOAD = 5A

Time (400μs/Div)

Dynamic VID Down

VOUT

(500mV/Div)

VID1

(1V/Div)

VOUT

(500mV/Div)

VID1

(1V/Div)

VID from 0.8V up to 1.4V, ILOAD = 85A

Time (100μs/Div)

Load Transient Response

VID from 1.4V down to 0.8V, ILOAD = 85A

Time (100μs/Div)

Load Transient Response

1.3V ->

1.3V ->

100A

ILOAD 35A

VID = 1.4V, fLoad = 200Hz, ILOAD = 35A to 100A

Time (100μs/Div)

100A

ILOAD

35A

VID = 1.4V, fLoad = 200Hz, ILOAD = 100A to 35A

Time (100μs/Div)

www.richtek.com

18

DS8862-01 April 2011

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