IR3477MTR1PBF View Datasheet(PDF) - International Rectifier

Part Name

Description

Manufacturer

IR3477MTR1PBF

15A Highly Integrated SupIRBuck™

International Rectifier 

15A Highly Integrated SupIRBuckTM

IR3477

TYPICAL APPLICATION

VCC

R2

10K

TP4

EN

SW1

EN / FCCM

+3.3V

R1

10K

TP3

FCCM

EN

FCCM

VSW

R4

7.50K

ISET

+3.3V

R5

10K

TP11

PGOOD

C5

open

PGOOD

TP13

SS

FB

SS

C20

0.1uF

VIN

R3

200K

+Vin1s

C4

1uF

TP20

+Vin1s

U1

IR3477

VSW

L1

1.0uH

1

FCCM

2

ISET

3

PGOOD

12

4

GND1

IR3477 PHASE

5

FB

6

SS

7

NC1

R6

open

C13

open

TP22

+Vsws

2

5

TP12

VSWS

TP21

-Vsws

TP14

+3.3V

+3.3V

TP26

AGND

TP16

VCC

TP17

PGND

VCC

C23

open

+Vdd2s

-Vdd2s

C21

1uF

C25

1uF

-Vout1s

+Vdd1s

C22

open

-Vdd1s

TP15

-Vout1s

TP25

-Vin1s

C14

open

TP19

FB

+Vins

C1

C2

+ C3

1uF

22uF

68uF

VOUT

-Vins

TP1

VINS

TP2

VIN

TP6

PGNDS

TP5

PGND

TP9

+Vout1s

C6

open

C7

open

C8

open

C9

330uF

C10

47uF

C11

open

TP23

+Vsws

TP7

VOUT

2

C12

0.1uF

5 TP8

VOUTS

TP24

+Vsws

TP10

PGND

C15

open

C16

open

C17

open

C18

open

C19

open

C26

open

C27

open

R7

1.33K

C24

open

R11

open

R12

open

R8

1.21K

R13

open

R14

open

TP18

VOLTAGE SENSE

Figure 4: Demoboard Schematic for VOUT = 1.05V, FS = 300kHz

DEMOBOARD BILL OF MATERIALS

QTY

REFERENCE DESIGNATOR

4

C1, C21, C25, C4

1

C10

2

C12, C20

1

C2

1

C3

1

C9

1

L1

3

R1, R2, R5

1

R3

1

R4

1

R7

1

R8

1

SW1

1

U1

VALUE

1.00uF

47uF

0.100uF

22.0uF

68uF

330uF

1.0uH

10.0K

200K

7.50K

1.33K

1.21K

SPST

IR3477

DESCRIPTION

capacitor, X7R, 1.00uF, 25V, 0.1, 0603

capacitor, 47uF, 6.3V, 805

capacitor, X7R, 0.100uF, 50V, 0.1, 603

capacitor, X5R, 22.0uF, 25V, 20%, 1206

capacitor, electrolytic, 86uF, 25V, 0.2, SMD

capacitor, 330uF, 2.5V, SMD

inductor, ferrite, 1.0uH, 20A, 2.7mOhm, SMT

resistor, thick film, 10.0K, 1/10W, 0.01, 603

resistor, thick film, 200K, 1/10W, 0.01, 603

resistor, thick film, 7.50K, 1/10W, 0.01, 603

resistor, thick film, 1.33K, 1/10W, 0.01, 603

resistor, thick film, 1.21K, 1/10W, 0.01, 603

switch, DIP, SPST, 2 position, SMT

5mm x 6mm QFN

MANUFACTURER

Murata

TDK

TDK

TDK

Panasonic

Sanyo

Cyntec

KOA

KOA

KOA

KOA

KOA

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IRF

PART NUMBER

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2R5TPE330M9

PIMB103E‐1R0MS‐39

RK73H1J1002F

RK73H1JLTD2003F

RK73H1JLTD7501F

RK73H1J1331F

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SD02H0SK

IR3477MTRPBF

4 March 27, 2013 | V2.5 | PD97604

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