RT8859M
CORE VR Load Transient Response
CORE VR Load Transient Response
VCORE
(50mV/Div)
VCORE
(50mV/Div)
70A
ILOAD
70A
ILOAD
5A
5A
VCORE = 1.1V, fLOAD = 300Hz, ILOAD = 5A to 70A
VCORE = 1.1V, fLOAD = 300Hz, ILOAD = 70A to 5A
Time (100μs/Div)
Time (100μs/Div)
CORE VR OCP
CORE VR OVP & NVP
VCORE
(2V/Div)
VR_RDY
(2V/Div)
VCORE
(1V/Div)
VR_RDY
(1V/Div)
PWM1
(5V/Div)
PWM1
(5V/Div)
ILOAD
(100A/Div)
VCORE = 1.1V
VCORE = 1.1V
Time (100μs/Div)
Time (40μs/Div)
CORE VR UVP
VIMON vs. Load Current
3.3
3.0
2.7
2.4
2.1
1.8
1.5
1.2
0.9
0.6
0.3
0.0
VCORE
(1V/Div)
VR_RDY
(1V/Div)
PWM1
(5V/Div)
VCORE = 1.1V, ILOAD = 1A
Time (1ms/Div)
0
10 20 30 40 50 60 70 80 90 100
Load Current (A)
Copyright 2012 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
www.richtek.com
24
DS8859M-05 July 2012
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
