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Data Sheet

17

May. 2010 Rev. 1. 5 BCD Semiconductor Manufacturing Limited

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2122

10 100 1k 10k 100k

0

10

20

30

40

50

60

70

80

90

100

PSRR (dB)

Frequency (Hz)

AP2122-3.0

V

IN

=4V

I

OUT

=30mA

C

IN

=C

OUT

=1µF

Typical Performance Characteristics (Continued)

Figure 20. PSRR vs. Frequency

10 100 1k 10k 100k 1M

0

20

40

60

80

100

PSRR (dB)

Frequency (Hz)

AP2122-1.5

V

IN

=2.5V

I

OUT

=30mA

C

IN

=C

OUT

=1µF

Figure 21. PSRR vs. Frequency

1 2 ... 12 13 14 15 16 17 18 19 20

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