PWM Doubler/Quad Logic
IR3599/IR3599A
TYPICAL APPLICATIONS
12V
VIN
Vout_L1
PWM SW
GND
C
+3.3V
VCC
P
U
VIN
PWM SW
GND
Function
PWM_IN
V1P8
PWM1
PWM2
PWM3
IR3599A
PWM4
PWM4
GND
VIN
PWM SW
GND
VIN
PWM SW
GND
RCSP
Rseries
CCS
RTh
Rseries
RCS
PWM1
ISEN1
IRTN1
RCSM
+3.3V
VCC
IR3565
VSEN
VRTN
RRES
PWM2
ISEN2
IRTN2
TSEN1
V18A
VIN
PWM SW
GND
RTh2
PWM3
ISEN3
IRTN3
+3.3V
VCC
VIN
PWM SW
GND
TSEN2
RTh3
12V
RVIN_1
PWM1
PWM2
PWM3
Function
VINSEN
VRDY1
VRDY2
PWM_IN
V1P8
RVIN_2
IR3599A
PWM4
PWM4
VIN
PWM SW
GND
GND
SVT/SV_ALERT
SV_DIO
SV_CLK
CPU Serial
Bus
PWM4
ISEN4
IRTN4
VIN
PWM SW
GND
VRHOT_CRIT#
From
System
EN
PWROK/EN_L2/INMODE
VDDIO
VDDIO/SV_ADDR
Applicable circuit when pin is
configured as VDDIO only
PWM1_L2
ISEN1_L2
IRTN1_L2
+3.3V
SM_DIO
SM_CLK
I2C Bus
VIN
VCC
RCSP_L2
Rseries
Vout_L2
CCS
PWM SW
PWM1
Function
PWM_IN
V1P8
RTh
RCS
PWM2
PWM3
GND
Rseries
C
P
U
RCSM_L2
PWM2_L2
ISEN2_L2
IRTN2_L2
IR3599A
PWM4
PWM4
VSEN_L2
VRTN_L2
VIN
PWM SW
GND
GND
ADDR_PROT
GND
+3.3V
VCC
VIN
PWM SW
GND
PWM1
PWM2
PWM3
Function
PWM_IN
V1P8
IR3599A
PWM4
PWM4
VIN
PWM SW
GND
GND
Figure 3: 20-Phase CPU VR solution using IR3599/A in QUAD mode & PowIRstage with the 6-phase Controller
4
www.irf.com | © 2012 International Rectifier
July 02, 2012 | V1.8
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