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SC471 Datasheet(PDF) 22 Page - Semtech Corporation

Part # SC471
Description  Synchronous Buck Controller with Multi-Level VOUT Transition Support
PDF  27 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC471 Datasheet(HTML) 22 Page - Semtech Corporation

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© 2008 Semtech Corp.
SC471/SC471A
www.semtech.com
POWER MANAGEMENT
Typical Characteristics
TON vs. VBAT - VOUT > 2.5V
TON vs. VBAT - VOUT < 1.8V
Efficiency vs. Load - VOUT = 1.15V
Frequency vs. BAT
Line Regulation
Load Regulation
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
510
15
20
VBAT (V)
2.5V
3.3V
5V
100
200
300
400
500
600
700
800
900
1000
510
15
20
VBAT (V)
0.75V
1.1V
1.5V
1.8V
300
310
320
330
340
350
360
370
380
390
400
5
7
9
11
13
15
17
19
21
23
VBAT (V)
0.75V
0.9V
1.0V
1.1V
1.25V
1.5V
1.8V
75%
80%
85%
90%
95%
0
2
4
6
8
10
1214
161820
Load (A)
10V
15V
19V
1.07
1.08
1.09
1.10
1.11
1.12
1.13
0
2
4
6
8
1012
1416
1820
Load (A)
10V
19V
15V
1.07
1.08
1.09
1.10
1.11
1.12
1.13
10
12
14
16
18
VBAT (V)
No Load
10A
3A
15A



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