BU665XNUX Datasheet, PDF (13/18 Pages) Rohm – High-speed Load Response Full CMOS LDP Regulators

BU6650NUX, BU6651NUX, BU6652NUX, BU6653NUX
● Reference data Vo=1.5V (Ta=25ºC unless otherwise specified.)
80
70
60
50
40
30
20
Vin= 3.5V
Io=10mA
10
Ta = 25℃
0
0.1
1
10
100
1000
Frequency (kHz)
80
f= 0 .1 kHz
70
60
f= 1 kHz
50
f= 1 0 kHz
40
30
20
10
0
2.5
f= 1 0 0 kHz
Co=1.0μF
Cin=none
Iout=10mA
temp=25℃
3.5
4.5
5.5
Input Voltage VIN[V]
Fig. 78. Ripple Rejection vs. Freq.
Fig. 79. Ripple Rejection vs. VIN
(Iout=10 mA)
Technical Note
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1
Co=1.0μF
Cin=1.0μF
Iout=10mA
temp=25℃
1
10
100
Frequency f [kHz]
Fig. 80. Output Noise Spectral
Density vs. Freq.
Fig. 81. Load Response
Fig. 82. Load Response
Fig. 83. Load Response
Fig. 84. Load Response
Fig. 85. Load Response
Current Pulse=10 kHz
Fig. 86. Load Response
Current Pulse=10 kHz
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13/17
2009.09 - Rev.B