CYStech Electronics Corp.

Spec. No. : C513E3

Issued Date : 2003.04.09

Revised Date :2005.05.17

Page No. : 2/10

LM317E3

CYStek Product Specification

Characteristics

Symbol Conditions

Min

Typ

Max

Unit

-

0.01

0.04

%/V

-

-

5.0

0.1

25

0.5

mV

-

0.03

0.07

Adjust Pin Current

-

50

100

µA

-

0.2

5.0

µA

Reference Voltage

Vref

1.2

1.25

1.3

V

Temperature Stability

Ts

-

0.7

-

Minimum Load Current to

maintain Regulation

-

3.5

10

mA

Maximum Output Current Imax

1. 5

0.15

2.2

0.4

-

-

A

RMS Noise

N

-

0.003

-

RR

-

66

65

80

-

-

dB

measurements

-

0.3

1.0

%/1.0k

Hrs

taken into account separately. Pulse testing with low duty cycle is used.

3.Since long-term stability cannot be measured on each device before shipment, this specification is an engineering

estimate of average stability from lot to lot.

4.Power dissipation within an IC voltage regulator produces a temperature gradient on the die, affecting individual IC

components on the die. These effects can be minimized by proper integrated circuit design and layout techniques.

Thermal regulation is the effect of these temperature gradients on the output voltage and is expressed in percentage

of output change per watt of power change in a specified time.