LP38690SD-1.8 datasheet(7/28 Pages) TI1

Part #	LP38690SD-1.8

Description	1A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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10

100

1k

10k

100k

0

10

20

30

40

50

60

FREQUENCY (Hz)

COUT = 100 PF

VIN(DC) = 5.3V

VIN(AC) = 1V(p-p)

VOUT = 3.3V

10

100

1k

10k

100k

0

10

20

30

40

50

60

FREQUENCY (Hz)

COUT = 1 PF

VIN(DC) = 5.3V

VIN(AC) = 1V(p-p)

VOUT = 3.3V

10

100

1k

10k

100k

FREQUENCY (Hz)

0.0

0.5

1.0

1.5

COUT = 100 PF

10

100

1k

10k

100k

0

10

20

30

40

50

60

FREQUENCY (Hz)

COUT = 10 PF

VIN(DC) = 5.3V

VIN(AC) = 1V(p-p)

VOUT = 3.3V

10

100

1k

10k

100k

FREQUENCY (Hz)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

COUT = 1 PF

FREQUENCY (Hz)

10

100

1k

10k

100k

0.0

0.2

0.4

0.6

0.8

1.0

COUT = 10 PF

LP38690, LP38692

www.ti.com

SNVS322J – DECEMBER 2004 – REVISED APRIL 2013

TYPICAL PERFORMANCE CHARACTERISTICS

Unless otherwise specified: TJ = 25°C, CIN = COUT = 10 µF, Enable pin is tied to VIN (LP38692 only), VOUT = 1.8V, VIN = VOUT

+1V, IL = 10mA.

Noise vs Frequency

Figure 9.

Figure 10.

Noise vs Frequency

Ripple Rejection

Figure 11.

Figure 12.

Ripple Rejection

Figure 13.

Figure 14.

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