IRU3037(2003) 查看數據表（PDF） - International Rectifier

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IRU3037
(Rev.:2003)

8-PIN SYNCHRONOUS PWM CONTROLLER

International Rectifier 

TYPICAL APPLICATION

Dual Supply, 5V Bus and 12V Bias Input

IRU3037 / IRU3037A

5V

12V

C4

C1

1uF

1uF

C7

0.1uF

C8

2200pF

R2

14K

Vcc Vc

HDrv

SS/SD U1

IRU3037

LDrv

Comp

Fb

Gnd

R3

1K

1%

L1

1uH

C2

10TPB100M, 100uF,

55mV, 1.5A rms

Q1

1/2 of IRF7752 L2

Q2 CTX5-2P, 3.5uH @ 2.5A

1/2 of IRF7752

R1

1K, 1%

C1

47uF

IRU1206-18

1.8V/1A

C3

47uF

2.5V/2A

C6

6TPB150M, 150uF, 55mV

L2

CTX5-2P, 3.5uH @ 2.5A

CTX10-5P, 5.7uH @ 2.5A

C6

6TPB150M, 150uF, 55mV (Qty 2)

6TPB150M, 150uF, 55mV (Qty 1)

C9

10TPB100M, 100uF,

55mV, 1.5A rms

C10

C11

1uF

1uF

C13

0.1uF

C14

2200pF

R5

14K

Vcc Vc

HDrv

SS/SD U2

IRU3037

LDrv

Comp

Fb

Gnd

R6

1K, 1%

Q3

1/2 of IRF7752 L3

Q4

CTX5-1P, 3.4uH @ 2A

1/2 of IRF7752

R4

1.65K, 1%

3.3V/1.8A

C12

6TPB150M, 150uF, 55mV

Figure 19 - Typical application of IRU3037 or IRU3037A in an on-board DC-DC converter providing the Core,

GTL+, and Clock supplies for the Pentium II microprocessor.

Rev. 2.8

03/10/03

www.irf.com

15

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