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IRF7457 Datasheet(PDF) 14 Page - International Rectifier

Part # IRF7457
Description  8-PIN SYNCHRONOUS PWM CONTROLLER
PDF  21 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IRF7457 Datasheet(HTML) 14 Page - International Rectifier

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14
Rev. 2.8
05/10/04
IRU3037 / IRU3037A
www.irf.com
TYPICAL APPLICATION
Single Supply 5V Input
Figure 18 - Typical application of IRU3037 in an on-board DC-DC converter
using a single 5V supply.
IRU3037
U1
Vcc
Vc
HDrv
LDrv
Fb
Gnd
Comp
SS/SD
C3
1uF
C4
1uF
C8
0.1uF
C9
680pF
R4
105K
Q1
1/2 of IRF7301
Q2
1/2 of IRF7301
R5
1K, 1%
R6
1.65K, 1%
L2
D05022P-103, 10uH, 4.3A
L1
1uH
C2
2x 10TPB100ML,
100uF, 55m
V
C1
47uF
Tantalum
3.3V
@ 4A
C7
2x 6TPC150M,
150uF, 40m
V
C5
0.1uF
D1
1N4148
D2
1N4148
D3
1N4148
5V



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