BU665XNUX Datasheet, PDF (7/18 Pages) Rohm – High-speed Load Response Full CMOS LDP Regulators

BU6650NUX, BU6651NUX, BU6652NUX, BU6653NUX
● Reference data Vo=2.8V (Ta=25ºC unless otherwise specified.)
Fig. 17. Load Regulation
80
70
60
50
40
30
20
10
0
0.1
Vin= 3.8V
Io=10mA
Ta = 25℃
1
10
100
1000
Frequency (kHz)
Fig. 20. Ripple Rejection VS Freq.
Fig. 18. OCP Threshold
80
70
60
50
40
30
20
10
0
2.8
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℃
3.8
4.8
Input Voltage VIN[V]
Fig. 21. Ripple Rejection VS VIN
Technical Note
2.85
2.84
2.83
2.82
2.81
2.80
2.79
2.78
2.77
2.76
2.75
-40
VIN=3.8V
STBY=1.5V
Io=0.1mA
-15
10
35
60
85
Temp. (°C)
Fig. 19. VOUT vs. Temp
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0.1
Co=1.0μF
Cin=1.0μF
Iout=10mA
temp=25℃
1
10
100
Frequency f [kHz]
Fig. 22. Output Noise Spectral
Density VS. Freq.
Fig. 23. Load Response
Fig. 24. Load Response
⇔
Fig. 26. Load Response
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Fig. 27. Load Response
Current Pulse=10kHz
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Fig. 25. Load Response
⇔
Fig. 28. Load Response
Current Pulse=10kHz
2009.09 - Rev.B