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RT8868A Datasheet(PDF) 6 Page - Richtek Technology Corporation

Part # RT8868A
Description  4/3/2/1-Phase PWM Controller for AMD AM2/AM2/AM3 CPUs
Download  21 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8868A Datasheet(HTML) 6 Page - Richtek Technology Corporation

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RT8868A
6
DS8868A-00 May 2012
www.richtek.com
©
Copyright 2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Function Block Diagram
VCC12
VCC5
BOOT1
UGATE1
PHASE1
LGATE1
BOOT2
UGATE2
PHASE2
LGATE2
PWM3
PWM4
ISP1
ISN1
ISP2
ISN2
ISP3
ISN3
ISP4
ISN4
ADJ
FBRTN_NB
VID5 to VID0
I_SEN1
I_SEN2
I_SEN3
I_SEN4
IMAX
OC
POR
POR
VIDOFF
PWROK
FB
1.8V
OV
COMP
OC
OV
RT
1.25V
EN
OFS
Power-On
Reset
5V
Regulator
MOSFET
Driver
MOSFET
Driver
CH3_EN
Detector
CH4_EN
Detector
CH1
Current
SENSE
CH2
Current
SENSE
CH3
Current
SENSE
CH4
Current
SENSE
AVG
VID
Table
Generator
Transient
Response
Enhancement
Soft Start
and
Fault
Logic
Transient
Response
Enhancement
Offset
Modulator
Waveform
Generator
+
-
+
-
+
-
+
-
+
-
+
+
-
+
+
-
EA
-
-
-
-
-
PGOOD
FBRTN
ISP_NB
ISN_NB
I_SENNB
NB
Current
SENSE
MOSFET
Driver
BOOT_NB
UGATE_NB
PHASE_NB
LGATE_NB
VCC12_NB
+
-
RAMP_NB
-
+
EA
FB_NB
OC_NB
IMAX_NB
OV_NB
-
+
+
1.8V
COMP_NB
PS
RAMP_NB
OC
Detection
OC_NB
Detection


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