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SC4612STRT Datasheet(PDF) 18 Page - Semtech Corporation

Part # SC4612STRT
Description  Wide Input Range High Performance Synchronous Buck Switching Controller
PDF  24 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4612STRT Datasheet(HTML) 18 Page - Semtech Corporation

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 2007 Semtech Corp.
www.semtech.com
SC4612
POWER MANAGEMENT
Application Information (Cont.)
Application Circuit 2: Vin = 24V; Vout = 3.3V @ 20A, Fsw = 500kHz.
Efficiency:
Q1
HAT2168H
Q2
HAT2165H
L1
1.5uH@22A
C10
0.1
C12A
180/4V_PosCap
+
_
+
_
Vin=24V
Vout=3.3@20A
R3
10k
R5
6.98k
C6
1/16V
R8
0
R9
0
R1
560k
C2
200p
C9
22/25V_cer
C3
0.1
R6
39.2k
C4
3.9n
D1
MBR0540
C8
2.2/10V
C5
300p
ILIM
1
PHASE
12
OSC
2
SS/EN
3
FB
5
VDD
6
GND
7
DL
8
DRV
9
BST
10
DH
11
EAO
4
U1
SC4612MLP
R4opt
R7
887
C7
750p
C13B
10/6.3V_cer
C12B
180/4V
Fsw=500kHz
C13A
180/4V
C14B
470/35V_AL
C14A
470/35V_AL
25V
SC4612: 24Vin, 3.3Vout @ 20A
80%
82%
84%
86%
88%
90%
92%
94%
96%
98%
100%
0246
8
10
12
14
16
18
20
22
Current, (A)



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