BU28TA2WNVX(2009) Просмотр технического описания (PDF) - ROHM Semiconductor

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производитель

BU28TA2WNVX
(Rev.:2009)

High-speed Load Response FULL CMOS LDO Regulators

ROHM Semiconductor 

BUTA2WNVX Series, BUTA2WHFV Series

Technical Note

 Reference data BU15TA2WNVX /HFV (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]

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. 17 Ripple Rejection vs. Freq.

Fig. 18 Ripple Rejection vs. VIN

(Iout=10 mA)

Fig. 19 Output Noise Spectral

Density vs. Freq.

Fig. 20 Load Response

Fig. 21 Load Response

Fig. 22 Load Response

Fig. 23 Load Response

Fig. 24 Load Response

Current Pulse=10 kHz

Fig. 25 Load Response

Current Pulse=10 kHz

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© 2009 ROHM Co., Ltd. All rights reserved.

6/27

2009.05 - Rev.B

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