Absolute Maximum Ratings

(Notes 1, 2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Input Voltage

-0.3 to 6.5V

Output Voltage

-0.3 to (V

6.5V (max)

Shutdown Input Voltage

-0.3 to 6.5V

Junction Temperature

150˚C

Lead Temp. (Note 3)

260˚C

Storage Temperature

-65 to 150˚C

Thermal Resistance (Note 4)

θ

JA

220˚C/W

Maximum Power Dissipation

at 25˚C

568mW

ESD (Note 5)

Human Body Model

2KV

Machine Model

200V

Operating Conditions(Note 1)

Input Voltage

1.9 to 5.2V

Shutdown Input Voltage

0 to 6.0V

Junction Temperature

-40˚C to 125˚C

Power Dissipation at 25˚C

454mW

Electrical Characteristics

Unless otherwise noted, V

pearing in normal type apply for T

tion, −40 to +125˚C. (Note 13)

Symbol

Parameter

Conditions

Typ

Limit

Units

Min

Max

V

IN

Input Voltage

1.9

5.2

V

∆V

OUT

Output Voltage Tolerance

Over full line and load regulation.

-90

+90

mV

Line Regulation Error

V

I

-0.27

+0.27

%/V

Load Regulation Error

I

100

220

µV/mA

I

LOAD

Load Current

(Notes 6, 7)

0

µA

I

Q

Quiescent Current

V

26

50

µA

V

29

50

V

0.003

1.5

I

SC

Short Circuit Current Limit

(Note 12)

90

mA

PSRR

Power Supply Rejection Ratio

f = 1kHz, I

40

dB

f = 20kHz, I

30

E

EN

Output noise Voltage (Note 7)

BW = 10Hz to 1000kHz,

V

300

µV

RMS

T

SHUTDOWN

Thermal Shutdown Temperature

160

˚C

Thermal Shutdown Hysteresis

20

Enable Control Characteristics

I

SD

Maximum Input Current at

SD Input

V

0.001

µA

V

IL

Low Input Threshold

V

0.4

V

V

IH

High Input Threshold

V

1.15

V

Timing Characteristics

T

ON1

Turn On Time (Note 7)

50 to 85% of V

OUT(NOM) (Note 8)

15

µS

T

ON2

To 95% Level (Note 9)

40

T

OFF1

Turn Off Time (Note 7)

85 to 50% of V

OUT(NOM) (Note 10)

15

µS

T

OFF2

95 to 5% Level (Note 11)

40

Transient

Response

Line Transient Response |

δV

60

mV

Load Transient Response

|

δV

T

I

60

Note 1: Absolute Maximum Ratings are limits beyond which damage can occur. Operating Ratings are conditions under which operation of the device is

guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the Electrical

Characteristics tables.

Note 2: All Voltages are with respect to the potential at the GND pin.

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