TS317L

3-Terminal Adjustable Positive Voltage Regulator

1/10

Version: C14

SOP-8

General Description

The TS317L is adjustable 3-terminal positive voltage regulator capable of supplying in excess of 100mA over an

output voltage range of 1.25 V to 37 V. This voltage regulator is exceptionally easy to use and require only two

external resistors to set the output voltage. Further, it employs internal current limiting, thermal shutdown and safe

area compensation, making it essentially blow-out proof. Besides replacing fixed regulators, the TS317L is useful in a

wide variety of other applications. Since the regulator is “floating “ and sees only the input-to-output differential

voltage, supplies of several hundred volts can be regulated as long as the maximum input-to-output differential is not

exceeded. Also, it makes an especially simple adjustable switching regulator, a programmable output regulator, or by

connecting a fixed resistor between the adjustment and output, the TS317L can be used as a precision current

regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which

programs the output to 1.25V where most loads draw little current.

Features

●

Output Voltage Range 1.25 to 37V

●

Output current in Excess of 100mA

●

Eliminates Stocking Many Fixed Voltages

●

Internal Thermal Overload Protection

●

Current Limit Constant with Temperature

●

Output transistor safe-area compensation

●

Output voltage offered in 4% tolerance

●

Floating Operation for High Voltage Applications

Standard Application Circuit

Ordering Information

Part No.

Package

Packing

TS317LCS RL

SOP-8

2.5kpcs / 13” Reel

Parameter

Symbol

Limit

Unit

Input Voltage

40

V

Power Dissipation

Internal Limited

W

Operating Junction Temperature

-20~+125

Storage Temperature Range

-65~+150

Thermal Resistance - Junction to Ambient

165

Cin is required if regulator is located an appreciable distance

from power supply filter. Co is not needed for stability,

however, it does improve transient response.

µA, the error

associated with this term is negligible in most applications

Pin Definition:

1. Input

8. N/C

2. Output

7. Output

3. Output

6. Output

4. Adjustable

5. N/C