參數(shù)資料
型號: SC471EVB
廠商: Semtech Corporation
英文描述: Synchronous Buck Controller with Multi-Level VOUT Transition Support
中文描述: 同步降壓控制器具有多層次VOUT電源支持過渡
文件頁數(shù): 22/27頁
文件大小: 634K
代理商: SC471EVB
22
2006 Semtech Corp.
SC471/SC471A
www.semtech.com
POWER MANAGEMENT
Typical Characteristics
TON vs. VBAT - VOUT > 2.5V
TON vs. VBAT - VOUT < 1.8V
Ef
fi
ciency 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
5
10
15
20
VBAT (V)
T
2.5V
3.3V
5V
100
200
300
400
500
600
700
800
900
1000
5
10
15
20
VBAT (V)
T
0.75V
1.1V
1.5V
1.8V
300
310
320
330
340
350
360
370
380
390
400
5
7
9
11
13
VBAT (V)
15
17
19
21
23
F
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
12
14
16
18
20
Load (A)
E
10V
15V
19V
1.07
1.08
1.09
1.10
1.11
1.12
1.13
0
2
4
6
8
Load (A)
10
12
14
16
18
20
V
10V
19V
15V
1.07
1.08
1.09
1.10
1.11
1.12
1.13
10
12
14
VBAT (V)
16
18
V
No Load
10A
3A
15A
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