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

●Reference data BU18TA2WNVX / HFV (Unless otherwise specified, Ta=25℃)

Technical Note

80

70

60

50

40

30

20

Vin= 3.5V

Io=10mA

10

Ta = 25℃

0

0.1

1

10

100

1000

Frequency (kHz)

Fig. 46 Ripple Rejection VS Freq.

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. 47 Ripple Rejection VS VIN

0.7

Co=1.0μF

0.6

Cin=1.0μF

Iout=10mA

0.5

temp=25℃

0.4

0.3

0.2

0.1

0

0.1

1

10

100

Frequency f [kHz]

Fig. 48 Output Noise Spectrl

Density VS Freq.

Fig. 49 Load Response

Fig. 50 Load Response

Fig. 51 Load Response

Fig. 52 Load Response

⇔

Fig. 53 Load Response

Current Pulse=10kHz

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Fig. 54 Load Response

Current Pulse=10kHz

2009.05 - Rev.B

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