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BD3021HFP-M 데이터시트(PDF) 11 Page - Rohm

부품명 BD3021HFP-M
상세설명  Regulator with Voltage Detector and Watchdog Timer
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제조업체  ROHM [Rohm]
홈페이지  http://www.rohm.com
Logo ROHM - Rohm

BD3021HFP-M 데이터시트(HTML) 11 Page - Rohm

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Technical Note
11/14
BD3021HFP-M
www.rohm.com
2010.11 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Pin Settings / Precautions
1.
Vcc Pin
Insert a 0.33 ~ 1000µF capacitor between the Vcc and GND pins. The appropriate capacitance value varies by
application. Be sure to allow a sufficient margin for input voltage levels.
2.
Output pins
It is necessary to place capacitors between each output pin and GND to prevent oscillation on the output. Usable
capacitance values range from 0.1µF ~ 1000µF. Abrupt fluctuations in input voltage and load conditions may affect the
output voltage. Output capacitance values should be determined only through sufficient testing of the actual application.
3.
CT pin
Connecting a capacitance of 0.01µF ~ 1µF on the CT pin is recommended.
ESR vs Io(reference data)
Pin Settings / Precautions 2 Measurement circuit
Vcc=5.6V~36V
Ta=-40℃~+125℃
Io=0A~500mA
Cin=0.33µF~100µF Cout=0.1µF~100µF
0.001
0.01
0.1
1
10
100
0
100
200
300
400
500
Cout_Io(mA)
Unstable operating region
Stable operating
region
Vcc
Vo
GND
Cin
ESR
Io(ROUT)
Vcc
(5.6~36V)
(0.33μF~)
Cout(0.1μF~)
(0.001Ω~)


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