BH12PB1WHFV 查看數據表（PDF） - ROHM Semiconductor
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BH12PB1WHFV
ROHM Semiconductor
BH12PB1WHFV Datasheet PDF : 11 Pages
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BH□□PB1WHFV Series
Technical Note
3.2
3.1
3.0
2.9
2.8
-50
Fig.13
-25 0 25 50 75 100
Temp[℃ ]
Output Voltage vs Temperature
(BH30PB1WHFV)
80
70
60
50
40
30
20
Co = 0.47 µF
IO = 10 mA
10
100
1k
10 k
100
1M
Frequency f[Hz]
Fig.16 Ripple Rejection
(BH12PB1WHFV)
4
3
2
1
0
0.0
0.5
1.0
1.5
2. 0
VS TBY [V ]
Fig.14 Standby Pin Threshold
(BH30PB1WHFV)
80
70
60
50
40
30
20
Co = 0.47 µF
IO = 10 mA
10
100
1k
10 k
100
1M
Frequency f[Hz]
Fig.17 Ripple Rejection
(BH30PB1WHFV)
6
5
4
3
2
1
0
0.0 1.0 2.0 3.0 4.0 5.0
VS TBY [V ]
Fig.15 Standby Pin Sink Current
(BH30PB1WHFV)
SEL
SEL = 0 V 1.5
1 V / div
VOUT
IO = no load
50 mV / div
10 ms / div
Fig.18 Output Voltage Waveform
During SEL Switching
(BH30PB1WHFV)
IOUT = 0 mA 10 mA
VOUT
50 mV / div
SEL = 0 V
(power-saving operation)
100 s / div
Fig.19 Load Response (Co = 1.0 µF)
(BH30PB1WHFV)
STBY
1 V / div
Co = 0.47 µF
1 V / div
VOUT
Co = 10 µF
200 s / div
Fig.22 Output Voltage Rise Time
(BH30PB1WHFV)
IOUT = 1 mA 30 mA
VOUT
50 mV / div
SEL = 1.5 V
200 s / div
Fig.20 Load Response (Co=1.0 µF)
(BH30PB1WHFV)
STBY
1 V / div
VOUT
Co = 2.2 µF
Co = 1 µF
Co = 0.47 µF
1 V / div
10 ms / div
Fig.23 Output Voltage Fall Time
(BH30PB1WHFV)
IOUT = 1 mA 100
VOUT
100 mV / div
200 s / div
Fig.21 Load Response (Co=1.0 µF)
(BH30PB1WHFV)
100 m
Rss = 10 k,
IO = no load
10 m
1.0µ
100 µ
0.01µ
0.1 µ
1.0µ
Slow start capacitance Css (F)
Fig.24 Soft Start Rise Time
(BH30PB1WHFV)
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© 2011 ROHM Co., Ltd. All rights reserved.
5/10
2011.01 - Rev.B
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