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BD9853AFV Datasheet(PDF) 4 Page - Rohm

Part # BD9853AFV
Description  Single/Dual-output High-frequency Step-down Switching Regulato (Controller type)
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BD9853AFV Datasheet(HTML) 4 Page - Rohm

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BD9853AFV
Technical Note
4/16
www.rohm.com
2009.05 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
-180
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0.01
0.1
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100000
FREQUENCY[KHz]
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1.31.41.51.61.71.8
1.92.02.12.22.32.42.52.6
FB VOLTAGE:VFB[V]
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0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 4
FB VOLTAGE[V]
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0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4
FB VOLTAGE[V]
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0.00.2 0.40.6 0.81.0 1.21.4 1.61.8 2.02.2 2.42.6 2.83.0 3.23.4 3.63.8 4.0
(OUTL-GND) VOLTAGE[V]
VCC=4.5V
VCC=12V,18V
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0.00.2 0.40.60.81.0 1.21.41.6 1.82.02.2 2.42.62.8 3.0 3.23.43.6 3.8 4.0
(VCC-OUTH) VOLTAGE:[V]
VCC=12V,18V
VCC=4.5V
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0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0
(REGB-OUTH) VOLTAGE[V]
4
VCC=4.5V
VCC=12V,18V
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0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0
(REGA-OUTL) VOLTAGE[V]
VCC=12V,18V
VCC=4.5V
Characteristic Data
OUTL
OUTH
Fig.3 FB SINK CURRENT
Fig.5 OUTH SINK CURRENT
Fig.7 OUTL SINK CURRENT
Fig.1 FB VOLTAGE VS ON DUTY
Fig.2 ERROR AMP OPEN LOOP
Phase
Gain
Fig.4 FB SOURCE CURRENT
Fig.6 OUTH SOURCE CURRENT
Fig.8 OUTL SOURCE CURRENT


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