BD9524MUV_10 Datasheet, PDF (7/21 Pages) Rohm – Main Power Supply IC for Note PC (Linear Regulator Integrated)

BD9524MUV
Technical Note
●Reference data
1.5
1.0
Vo=5.0V
0.5
Vo=3.3V
0.0
0.00
0.40
0.80
1.20
FS[V]
Fig.13 FS-ON TIME
1200
1000
VIN=12V, Vo=5.0V
500 CONT Mode (VIN=19)
450
CONT Mode (VIN=12)
CONT Mode (VIN=7)
400
800
350 _{QLLM,SLLM (VIN=19)}
300 _{QLLM,SLLM (VIN=12)}
600
250 ^{QLLM,SLLM (VIN=7)}
200
400
CONT Mode (5.0V)
CONT Mode (3.3V)
QLLM
150 _{(VIN=7, 12, 19V)}
200
QLLM, SLLM (3.3V)
100
SLLM
QLLM, SLLM (3.3V)
50
0
0
1.60
0 .0 0
0 .4 0
0 .8 0
1 .2 0
1 .6 0
0.001
0.01
0.1
1
10
F S[V ]
Io [A]
Fig.14 FS-frequency
Fig.15 Io-frequency (Vo1=5.0V)
100
90
80
SLLM
70
60
50
40
30 ^QLLM
20
CONT Mode
10
0
1
10
100
1000 10000
Io [mA]
Fig.16 Io-efficiency (VIN=12V, Vo1=5.0V)
100
CONT Mode
10
QLLM
1
SLLM
0.1
7 10 13 16 19 22 25
VIN [V]
Fig.17 VIN-IVIN (Io=0A, Vo1=5.0V)
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2010.03 - Rev.C