BDXXKA5-E Datasheet, PDF (11/18 Pages) Rohm – low-saturation regulators that are available for output currents up to 500mA.

BDxxKA5 Series BDxxKA5W Series BD00KA5W Series
●Vo Terminal
Please be sure to attach an anti-oscillation capacitor between Vo and GND.
Datasheet
OUT
IC
1μF
Fig.24 Output Equivalent Circuit
100
10
1
0 .1
0 .0 1
0
Oscillation region
発振領域
Stab_安le_定r_領eg_域ion
Cin
Vcc
1μF
VCTL
2V
ESR
Vcc OUT 1μF
CTL GND ADJ R2
R1
Io(ROUT)
R1=30kΩ,R2=2kΩ
100
200
300
400
500
Io u^Iot(⁽m^mA^A)⁾
Fig.25 ESR-Io Characteristics
Be sure to place an anti-oscillation capacitor between the output terminal and the GND. Oscillations may arise if the
capacitance value changes, due to factors such as temperature changes. A 1μF capacitor with small internal series resistance
(ESR) such as a ceramic capacitor is recommended as an anti-oscillation capacitor. Ceramic capacitors generally have
favorable temperature characteristics and DC bypass characteristics. When selecting a ceramic capacitor, a high voltage
capacitor (good DC bypass characteristics) with temperature characteristics that are superior to those of X5R or X7R, is
recommended. In applications where input voltage and load fluctuations are rapid, please decide on a capacitor after
sufficiently confirming its properties according to its specifications in the actual application.
120
120
100
50V Max.Input
100
120
50V Max.Input
100
80
80
60
60
40
16V Max.Input
40
10V Max.Input
20
20
16V Max.Input
10V Max.Input
80
X7R
Y5V
X5R
60
40
Vdc=0
20
0
0
(a)
1
2
3
直^D流^Cバ^bypイ^asア^{s V}ス^dc(V^V)dc（V)
Capacitance-bypass
characteristics (Y5V)
0
0
4
0
1
2
3
4
-25
0
25
50
75
直流^DCバ^byイ^paア^ss ス^VdcV^(Vd⁾c（V)
（b）Capacitance-bypass
characteristics（X5R,X7R）
T_Te_em_mp(℃_p()_℃)
（C）Capacitance-temperature
characteristics（X5R,X7R,Y5V）
Fig.26 General characteristics of ceramic capacitors
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥15ï½¥001
11/15
TSZ02201-0R6R0A600150-1-2
26.Jun.2012 Rev.001