10

100

1k

10k

100k

1M

10M

0

10

20

30

40

50

60

70

80

90

100

FREQUENCY (Hz)

IOUT= 50 mA

VOUT= 4.7V

COUT= 10 F Ceramic

Vin=5.0V

Vin=5.1V

Vin=5.2V

Vin=5.3V

Vin=5.5V

10

100

1k

10k

100k

1M

10M

0

10

20

30

40

50

60

70

80

90

100

FREQUENCY (Hz)

IOUT= 100 mA

VOUT= 4.7V

COUT= 10 F Ceramic

Vin=5.0V

Vin=5.1V

Vin=5.2V

Vin=5.3V

Vin=5.5V

-50

-25

0

25

50

75

100 125

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

TEMPERATURE, TJ(°C)

Iout = 0mA

Iout = 10 mA

Iout = 800mA

10

100

1k

10k

100k

1M

10M

0

10

20

30

40

50

60

70

80

90

100

FREQUENCY (Hz)

VOUT= 4.70V

COUT= 10 F Ceramic

IOUT= 20 mA

Vin=5.0V

Vin=5.1V

Vin=5.2V

Vin=5.4V

Vin=5.5V

-50

-25

0

25

50

75

100 125

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

TEMPERATURE, TJ(°C)

VINRising

VINFalling

UVLO(ON)

UVLO(OFF)

-50

-25

0

25

50

75

100 125

0

50

100

150

200

250

300

350

TEMPERATURE, TJ(°C)

Iout = 800mA

-50

-25

0

25

50

75

100 125

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

TEMPERATURE, TJ(°C)

IEN(IH)

IEN(IL)

-50

-25

0

25

50

75

100 125

1.00

1.05

1.10

1.15

1.20

1.25

1.30

1.35

1.40

1.45

1.50

TEMPERATURE, TJ(°C)

VENRising

VENFalling

VEN(ON)

VEN(OFF)

LP38788, LP38788-ADJ

SNVS802B – APRIL 2012 – REVISED OCTOBER 2012

www.ti.com

Typical Performance Characteristics

Unless otherwise specified: VIN = 5.5V, VOUT = 5.00V, IOUT = 10 mA, COUT = 10 µF MLCC 16V X7R, TJ = 25°C.

Enable Pin Current

Enable Thresholds

UVLO Thresholds

Dropout Voltage, VDO

Ground Pin Current

PSRR, IOUT = 20 mA

PSRR, IOUT = 50 mA

PSRR, IOUT = 100 mA

6

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Product Folder Links: LP38788 LP38788-ADJ