IR3599/IR3599A

PWM Doubler/Quad Logic

July 02, 2012 | V1.8

4

TYPICAL APPLICATIONS

12V

VIN

PWM

SW

GND

PWM

4

GND

PWM1

PWM

2

PWM

3

VCC

PWM4

PWM_IN

V1P8

Function

PWM

4

GND

PWM1

PWM

2

PWM

3

VCC

PWM4

PWM_IN

V1P8

Function

Vout_L1

IR3599A

IR3599A

+3.3V

+3.3V

+3.3V

IR3565

VINSEN

PWM1_L2

PWM3

PWM2

VRDY1

VSEN

VCC

RRES

PWROK/EN_L2/INMODE

V18A

VRTN

IRTN3

RCSP

IRTN2

RCSM

ISEN3

ISEN2

12V

From

System

VRDY2

TSEN1

GND

ADDR_PROT

VRHOT_CRIT#

SM_CLK

SM_DIO

I2C Bus

VDDIO/SV_ADDR

RCSP_L2

RCSM_L2

RCS

CCS

VSEN_L2

VRTN_L2

SV_CLK

SV_DIO

SVT/SV_ALERT

EN

VDDIO

PWM1

IRTN1

ISEN1

ISEN1_L2

IRTN1_L2

PWM4

ISEN4

IRTN4

CPU Serial

Bus

TSEN2

PWM2_L2

ISEN2_L2

IRTN2_L2

RCS

CCS

Applicable circuit when pin is

configured as VDDIO only

C

P

U

PWM

4

GND

PWM1

PWM

2

PWM

3

VCC

PWM4

PWM_IN

V1P8

Function

IR3599A

+3.3V

PWM

4

GND

PWM1

PWM

2

PWM

3

VCC

PWM4

PWM_IN

V1P8

Function

IR3599A

+3.3V

VIN

PWM

SW

GND

VIN

PWM

SW

GND

VIN

PWM

SW

GND

VIN

PWM

SW

GND

VIN

PWM

SW

GND

VIN

PWM

SW

GND

VIN

PWM

SW

GND

VIN

PWM

SW

GND

VIN

PWM

SW

GND

VIN

PWM

SW

GND

C

P

U

Vout_L2

VIN

PWM

SW

GND

Figure 3: 20-Phase CPU VR solution using IR3599/A in QUAD mode & PowIRstage with the 6-phase Controller