UNISONIC TECHNOLOGIES CO., LTD

LL431

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

1 of 5

Copyright © 2011 Unisonic Technologies Co., Ltd

QW-R121-020,E

PROGRAMMABLE PRECISION

REFERENCE

DESCRIPTION

The UTC LL431 is a three-terminal adjustable regulator with a

guaranteed thermal stability over applicable temperature ranges.

(approximately 2.5V) and 36 V with two external resistors. It

can be used in provides very wide applications including shunt

regulator, series regulator, switching regulator, voltage reference

and others.

FEATURES

*Programmable output Voltage to 36V.

*Low dynamic output impedance 0.2

Ω.

*Sink current capability of 1.0 to 100mA.

*Equivalent full-range temperature coefficient of 50ppm/

°C

typical for operation over full rated operating temperature range.

TO-92

1

SOP-8

SOT-89

SOT-25

1

3

5

2

4

1

SOT-23

1

3

2

ORDERING INFORMATION

Ordering Number

Package

Pin Assignment

Packing

Lead Free

Halogen Free

1

2

3

4

5

6

7

8

LL431K-AB3-R

LL431G-AB3-R

SOT-89

R

A

K

-

-

-

-

-

Tape Reel

LL431K-AE3-R

LL431G-AE3-R

SOT-23

K

R

A

-

-

-

-

-

Tape Reel

LL431NSL-AE3-R

LL431NSG-AE3-R

SOT-23

R

K

A

-

-

-

-

-

Tape Reel

LL431K-AF5-R

LL431G-AF5-R

SOT-25

X

X

K

R

A

-

-

-

Tape Reel

LL431K-S08-R

LL431G-S08-R

SOP-8

KAAX

XAA

R

Tape Reel

LL431K-T92-B

LL431G-T92-B

TO-92

R

A

K

-

-

-

-

-

Tape Box

LL431K-T92-K

LL431G-T92-K

TO-92

R

A

K

-

-

-

-

-

Bulk

LL431K-T92-R

LL431G-T92-R

TO-92

R

A

K

-

-

-

-

-

Tape Reel

Note: Pin Code: K: Cathode

A: Anode

R: Reference

X: No Connection