ELECTRICAL CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN TYP MAX

UNIT

T

0.01

0.04

Input Regulation*2

V

I

0.02

0.07

%/V

V

65

Ripple Rejection

V

10-µF capacitor between ADJ and ground

66

80

dB

V

5

25

mV

I

T

V

0.1

0.5

%

V

20

70

mV

Output Regulation

I

V

0.3

1.5

%

Output Voltage Change With Temperature

T

1

%

Output Voltage long-term Drift*4

After 1000h at T

0.3

1

%

Output Noise Voltage

f=10Hz to 10kHz, T

0.003

%

Minimum Output

Current

to

Maintain

Regulation

V

3.5

10

mA

V

1.5

2.2

Peak Output Current

V

0.15

0.4

A

Adjustment-terminal Current

50

100

µA

Change in adjustment-terminal Current

V

I

0.2

5.0

µA

Reference Voltage(Output to ADJ)

V

P≤15W

1.20

1.25

1.30

V

*1

All characteristics are measured with a 0.1-µF capacitor across the input and a 1-µF capacitor across the output.

*2

Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input

*3

Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible.

Thermal effects must be taken into account separately.

*4

Since long-term drift cannot be measured on the individual devices prior to shipment. This specification is not intended to be a guarantee or warranty. It

is an engineering estimate of the average drift to be expected from lot to lot.

TYPICAL APPLICATION DATA

1.

Use of an input bypass capacitor is recommended if regulator is far from filter capacitors.

2.

Use of an output capacitor improves transient response but is optional.

3.

V

OUT

ADJ

REG

IN

R

1

240

R

2

C

F

C

F

V

I

V

0

V

}

R

2

R

1

3-TERMINAL ADJUSTABLE REGULATORS

See Note 1

See Note 2

See Note 3

Uniess otherwise noted ,these specifications apply for the following test conditions: Vi-Vo=5V and Io=0.5A. For conditions

shown as MIN or MAX, use the appropriate

value specified under recommended operating conditions.

*3

Output voltage is calculated from

LM317