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300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2128

Data Sheet

Sept. 2010 Rev. 2.0 BCD Semiconductor Manufacturing Limited

100 1000 10000 100000

100

PSRR (dB)

Frequency (Hz)

OUT

=10mA

OUT

=300mA

ripple=1Vpp, C

OUT

=1µF, V

OUT

=0.8V

Typical Performance Characteristics (Continued)

Figure 36. Soft Start Time

(Conditions: I

OUT

=0mA, C

OUT

=1µF,

Shutdown

=0 to 2V, V

OUT

=0.8V)

OUT

Shutdown

Figure 37. PSRR vs. Frequency

Figure 38. PSRR vs. Frequency

100 1000 10000 100000

100

PSRR (dB)

Frequency (Hz)

OUT

=10mA

OUT

=300mA

ripple=1Vpp, C

OUT

=1µF, V

OUT

=3.3V

Figure 39. PSRR vs. Frequency

100 1k 10k 100k

PSRR (dB)

Frequency (Hz)

OUT

=10mA

OUT

=300mA

OUT

=5.2V, C

OUT

=1µF, ripple=0.5Vpp

1 2 ... 13 14 15 16 17 18 19 20 21

Data Sheet 1
General Description 1
Features 1
Applications 1
Pin Configuration 2
Functional Block Diagram 2
Ordering Information 4
Electrical Characteristics 6
Data Sheet 13
Typical Application 19
SOT-23-5 Unit: mm(inch) 20
Mechanical Dimensions 20

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