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RT8167A Datasheet(PDF) 31 Page - Richtek Technology Corporation

Part # RT8167A
Description  Dual Single-Phase PWM Controller for CPU Core/GFX Power Supply
PDF  40 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8167A Datasheet(HTML) 31 Page - Richtek Technology Corporation

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RT8167A
31
DS8167A-00
January 2012
www.richtek.com
©
Copyright
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Figure 7 (a). Power sequence for RT8167A (VINI_CORE = VINI_GFX = 0V)
Figure 7 (b). Power sequence for RT8167A (VINI_CORE
0, VINI_GFX
0V)
≠
≠
EN
SVID
Valid
xx
XX
VCORE
VR_READY
100µs
POR
0.2V
CORE VR
Operation Mode
CCM
CCM
0.2V
VGFX
SVID defined
CCM
SVID defined
GFX VR
Operation Mode
100µs
VRA_READY
CCM
300µs
Off
Off
VCC
EN Chip
(Internal Signal)
Off
Off
VRA_READY
EN Chip
(Internal Signal)
SVID
Valid
xx
XX
VCORE
VR_READY
100µs
POR
0.2V
CORE VR
Operation Mode
CCM
CCM
Off
0.2V
VGFX
SVID defined
CCM
Off
SVID defined
GFX VR
Operation Mode
CCM
250µs
Off
Off
VCC
EN
100µs
300µs
VINI_GFX
VINI_CORE
50µs



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