Typical Operating Characteristics
CORE VR Power On
VCORE
(1V/Div)
VR_RDY
(2V/Div)
ALERT
(2V/Div)
VDIO
(1V/Div)
VCORE = 1.1V, ILOAD = 5A
Time (100μs/Div)
RT8859M
CORE VR Power Off from EN
VCORE
(1V/Div)
VR_RDY
(2V/Div)
EN
(2V/Div)
PWM1
(5V/Div)
VCORE = 1.1V, ILOAD = 5A
Time (1ms/Div)
CORE VR Dynamic VID Up
Fast Slew Rate
CORE VR Dynamic VID Up
Slow Slew Rate,
VCORE
(500mV/Div)
VCLK
(1V/Div)
ALERT
(2V/Div)
VDIO
(2V/Div)
VCORE = 0.7V up to 1.2V, ILOAD = 20A
Time (40μs/Div)
VCORE
(500mV/Div)
VCLK
(1V/Div)
ALERT
(2V/Div)
VDIO
(2V/Div)
VCORE = 0.7V up to 1.2V, ILOAD = 20A
Time (100μs/Div)
CORE VR Dynamic VID Down
Fast Slew Rate,
CORE VR Dynamic VID Down
Slow Slew Rate,
VCORE
(500mV/Div)
VCLK
(1V/Div)
ALERT
(2V/Div)
VDIO
(2V/Div)
VCORE = 1.2V down to 0.7V, ILOAD = 20A
Time (40μs/Div)
VCORE
(500mV/Div)
VCLK
(1V/Div)
ALERT
(2V/Div)
VDIO
(2V/Div)
VCORE = 1.2V down to 0.7V, ILOAD = 20A
Time (100μs/Div)
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8859M-05 July 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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