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IR3570A Datasheet(PDF) 3 Page - International Rectifier

Part # IR3570A
Description  Dual Output Digital Multi-Phase Controller
Download  4 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3570A Datasheet(HTML) 3 Page - International Rectifier

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Dual Output Digital Multi-Phase Controller
IR3564A
IR3570A
August 9, 2012 | FINAL | Produc t Brief | V2.04
3
TYPICAL APPLICATION DIAGRAM
+3.3V
V_CPU_L1
IR3564A
IR3570A
VINSEN
PWM1_L2
PWM3
PWM2
VRDY1
VSEN
VCC
RRES
PWROK/EN_L2/INMODE
V18A
VRTN
IRTN3
RCSP
IRTN2
RCSM
ISEN3
ISEN2
Vin
From
System
L
O
A
D
RCS
CCS
Rseries
Rseries
RTh
RVIN _1
RVIN _2
VRDY2
TSEN1
RTh2
GND
ADDR_PROT
VRHOT_CRIT#
SM_CLK
SM_DIO
I2C Bus
VDDIO/SV_ADDR
RCSP_L2
RCSM_L2
RCS
CCS
Rseries
Rseries
RTh
VSEN_L2
VRTN_L2
SV_CLK
SV_DIO
SVT/SV_ALERT
EN
VDDIO
Applicable circuit when pin is
configured as VDDIO only
LoGate
HiGate
Vcc
GND
PWM
Boot
Switch
Vdrv
LoGate
HiGate
Vcc
GND
PWM
Boot
Switch
Vdrv
LoGate
HiGate
Vcc
GND
PWM
Boot
Switch
Vdrv
LoGate
HiGate
Vcc
GND
PWM
Boot
Switch
Vdrv
LoGate
HiGate
Vcc
GND
PWM
5V
Boot
Switch
CHL8505
12V
Vdrv
PWM1
IRTN1
ISEN1
5V
CHL8505
12V
CHL8505
12V
5V
5V
CHL8505
12V
CHL8505
12V
5V
ISEN1_L2
IRTN1_L2
PWM2_L2/PWM4
ISEN2_L2/ISEN4
IRTN2_L2/IRTN4
V_CPU_L2
L
O
A
D
CPU
Serial
Bus
Figure 4: Dual-loop VR using IR3564A or IR3570A Controller and CHL8505 MOSFET Drivers in 4+1 or 3+2 Configuration


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