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| BD9123MUV_11 Datasheet, PDF (5/18 Pages) Rohm – Output 1.5A or Less High-efficiency Step-down Switching Regulator with Built-in Power MOSFET | |||
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BD9123MUV
Technical Note
SW
VO
Vo
VO
VCC=5V
Io=1.2A
Ta=25â
Fig.16 SW waveform Io=1.2A
VID[2:0]=(0,0,1)â(1,1,1)
VID
VO
0.85V
1.2V
Fig.19 BIT CHANCE RESPONSE
IO
Ta=25â
Fig.17 Transient Response
Io=125mAâ850mA(2µA)
VID[2:0]= (1,1,1)â0,0,1)
VID
1.2V
VO
0.85V
Fig.20 BIT CHANCE RESPONSE
Io
Ta=25â
Fig.18 Transient Response
Io=850mAâ125mA(2µA)
PGOOD
VOUT
0.9V
0.75V
TPG
VCC=5V
Vo=1V
Ta=25â
Fig.21 PGOOD Delay
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© 2011 ROHM Co., Ltd. All rights reserved.
5/17
2011.01 - Rev.A
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