BUXXTA2WNVX Datasheet, PDF (18/28 Pages) Rohm – High-speed Load Response FULL CMOS LDO Regulators

BUTA2WNVX Series, BUTA2WHFV Series
●Reference data BU30TA2WNVX / HFV (Unless otherwise specified, Ta=25℃)
Technical Note
80
70
60
50
40
30
20
Vin= 4.0V
Io=10mA
10
Ta = 25℃
0
0.1
1
10
100
1000
Frequency (kHz)
Fig. 133 Ripple Rejection VS Freq.
80
70
60
50
40
30
20
10
0
3
f= 0 .1 kHz
f= 1 kHz
f= 1 0 kHz
f= 1 0 0 kHz
Co=1.0μF
Cin=none
Iout=10mA
temp=25℃
4
5
Input Voltage VIN[V]
Fig. 134 Ripple Rejection VS VIN
1.6
Co=1.0μF
1.4
Cin=1.0μF
Iout=10mA
1.2
temp=25℃
1
0.8
0.6
0.4
0.2
0
0.1
1
10
100
Frequency f [kHz]
Fig. 135 Output Noise Spectrl
Density VS Freq.
Fig. 136 Load Response
Fig. 137 Load Response
Fig. 138 Load Response
Fig. 139 Load Response
Fig. 140 Load Response
Current Pulse=10kHz
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Fig. 141 Load Response
Current Pulse=10kHz
2009.05 - Rev.B