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BD9528 View Datasheet(PDF) - ROHM Semiconductor

Part Name
Description
Manufacturer
BD9528
Main Power Supply for Notebook PCs
ROHM
ROHM Semiconductor ROHM
BD9528 Datasheet PDF : 30 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
BD9528AMUV
●Reference data
100
80
60
7V
12V
40
21V
20
0
1
10 100 1000 10000
Io[mA]
Fig.13 Efficiency
(Vo=5V, PWM)
100
80
7V
60
40
12V
21V
20
0
1
10
100 1000 10000
Io[mA]
Fig.14 Efficiency
(Vo=5V, QLLM)
Technical Note
100
80
60
40
20
0
1
7V
12V
21V
10
100 1000 10000
Io[mA]
Fig.15 Efficiency
(Vo=5V, SLLM)
100
5V
80
7V
12V
60
21V
40
20
0
1
10
100 1000 10000
Io[mA]
Fig.16 Efficiency
(Vo=3.3V, PWM)
100
80
7V
60
40
12V
21V
20
0
1
10
100 1000 10000
Io[mA]
Fig.17 Efficiency
(Vo=3.3V, QLLM)
100
80
60
40
20
0
1
7V
12V
21V
10 100 1000 10000
Io[mA]
Fig.18 Efficiency
(Vo=3.3V, SLLM)
100
80
7V
60
12V
40
21V
20
0
1
10 100 1000 10000
Io[mA]
Fig.19 Efficiency
(Vo=1V, PWM)
100
7V
80
60
12V
21V
40
20
0
1
10
100 1000 10000
Io[mA]
Fig.20 Efficiency
(Vo=1V, QLLM)
100
80
60
40
20
0
1
7V
12V
21V
10
100 1000 10000
Io[mA]
Fig.21 Efficiency
(Vo=1V, SLLM)
20μs
Vo
100mV/div
20μs
Vo
100mV/div
20μs
Vo
100mV/div
IL
5A/div
IO
5A/div
Fig.22 Transient Response
(Vo=5V, PWM, Io=0→8A)
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
Fig.23 Transient Response
(Vo=5V, PWM, Io=8→0A)
IL
5A/div
IO
5A/div
8/29
IL
5A/div
IO
5A/div
Fig.24 Transient Response
(Vo=3.3V, PWM, Io=0→8A)
2011.11 - Rev.A
 

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