1000

10000

_

100000

_

1000000

_

FREQUENCY (Hz)

0

10

_

20

_

30

_

40

_

50

_

60

_

70

_

80

_

90

_

100

COUT = 4.7 PF Tantalum

ILOAD = 10 mA

1.45

1.46

1.47

1.48

1.49

1.50

1.51

1.52

1.53

1.54

1.55

TEMPERATURE (

oC)

-40

0

40

120

80

-20

20

60

140

100

50 Ps/DIV

1

0

2

ILOAD

VOUT

COUT = 4.7 PF Tantalum

VOUT = 0.8V

0

-50

50

20 Ps/DIV

5

4

6

VBIAS

VOUT

IL = 10 mA

VOUT = 1.2V

VIN = 1.7V

-10

0

10

50 Ps/DIV

1

0

2

ILOAD

VOUT

VOUT = 0.8V

COUT = 22 PF Cer

0

-50

50

LP38843

www.ti.com

SNVS290C – DECEMBER 2004 – REVISED APRIL 2013

TYPICAL PERFORMANCE CHARACTERISTICS

Unless otherwise specified: TJ = 25°C, CIN = 10 µF CER, COUT = 22 µF CER, CBIAS = 1 µF CER, S/D Pin is tied to VBIAS, VOUT

= 1.2V, IL = 10mA, VBIAS = 5V, VIN = VOUT + 1V.

VBIAS Transient Response

Load Transient Response

Figure 3.

Figure 4.

Load Transient Response

Dropout Voltage Over Temperature

Figure 5.

Figure 6.

VOUT

vs

Temperature

VBIAS PSRR

Figure 7.

Figure 8.

Copyright © 2004–2013, Texas Instruments Incorporated

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