Datasheet

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TS317 1-9 2003/12 rev. A

TS317

3-Terminal Adjustable Output Positive Voltage Regulator

Output Voltage Range

From

1.25V to 37V

Output Current

up to 1.5A

General Description

The TS317 is adjustable 3-terminal positive voltage regulator capable of supplying in excess of 1.5A 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.

The TS317 is offered in 3-pin TO-220, TO-263, TO-252, SOT-223, SOP-8 and TO-92 package.

Features

 Output current up to 1.5A

* TO-220/TO-263 for 1.5A

* TO-252/SOT-223 for 500mA

* SOP-8 for 300mA

* TO-92 for 100mA

 Output Adjustable between 1.25 V and 37 V

 Internal Thermal Overload Protection

 Internal Short-Circuit Current Limiting Constant with

Temperature

 Output Transistor Safe-Area Compensation

 Floating Operation for High Voltage Applications

 Eliminates Stocking Many Fixed Voltages

 Output voltage offered in 4% tolerance

Ordering Information

Part No. Operating Temp.

(Ambient)

Package

TS317CZ TO-220

TS317CM TO-263

TS317CP TO-252

TS317CW SOT-223

TS317CS SOP-8

TS317CT

-20 ~ +85

TO-92

Standard Application

Vout = 1.25 V * (1 + R2

/ R1 ) + Iadj

* R2

Since I

Adj

is controlled to less than 100 µA, the error

associated with this term is negligible in most applications

A common ground is required between the input and the

output voltages. The input voltage must remain typically

2.0V above the output voltage even during the low point

on the Input ripple voltage.

* = 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.

TO-263

Pin assignment:

1. Adjustable

2. Output

3. Input

(Heatsink surface

connected to pin 2)

Pin assignment: SOP-8

1. Adjustable 5. N/C

2. Output 6. Output

3. Output 7. Output

4. In

ut 8. N/C

Summary of content (9 pages)

PAGE 1
TS317 3-Terminal Adjustable Output Positive Voltage Regulator TO-263 Pin assignment: 1. Adjustable 2. Output 3. Input (Heatsink surface connected to pin 2) Pin assignment: SOP-8 1. Adjustable 5. N/C 2. Output 6. Output 3. Output 7. Output 8. N/C 4. Input Output Voltage Range From 1.25V to 37V Output Current up to 1.5A General Description The TS317 is adjustable 3-terminal positive voltage regulator capable of supplying in excess of 1.5A over an output voltage range of 1.25 V to 37 V.
PAGE 2
Absolute Maximum Rating Input Voltage Vin 40 Power Dissipation Pd Internal Limited Operating Junction Temperature Range TJ Storage Temperature Range TSTG V W -20 ~ +125 o C -65 ~ +150 o C TS7805 Electrical Characteristics (VI -VO = 5.0 V, Io=500mA for TO-220/TO-263 packages, Io=200mA for TO-252/SOT-223 package, Io=40mA for TO-92 package; Tj =TLOW to THIGH see [Note 1]; Pmax per [Note 2]; unless otherwise specified.) CHARACTERISTIC FIGURE SYMBOL MIN. TYP. MAX. 3 Vref 1.20 1.25 1.
PAGE 3
Block Diagram Test Circuit Figure 1. line regulation and ∆Iadj/line test circuit TS317 3-9 2003/12 rev.
PAGE 4
Test Circuit Figure 2. load regulation and ∆Iadj/line test circuit Figure 3. standard test circuit Figure 4. ripple rejection test circuit TS317 4-9 2003/12 rev.
PAGE 5
Application Information Basic Circuit Operation External Capacitor The TS317 is a 3-terminal floating regulator. In operation, the TS317 develops and maintains a nominal 1.25V reference (Vref) between its output and adjustment terminals. This reference voltage is converted to a programming current (Iprog.) by R1 (see Figure 17), and this constant current flows through R2 to ground.
PAGE 6
Application Information Figure 7. “LABORATORY” power supply with adjustable current limit and output voltage TS317 Figure 8. adjustable current limiter Figure 9. 5V electronic shutdown regulator Figure10. slow turn-on regulator Figure 11. current regulator 6-9 2003/12 rev.
PAGE 7
TO-220 Mechanical Drawing K B A TO-220 DIMENSION L C DIM P J I M D H F G O E N MILLIMETERS MIN MAX INCHES MIN MAX A 10.000 10.500 0.394 0.413 B 3.240 4.440 0.128 0.175 C D 2.440 - 2.940 6.350 0.096 - 0.116 0.250 E 0.381 1.106 0.015 0.040 F G 2.345 4.690 2.715 5.430 0.092 0.092 0.058 0.107 H 12.700 14.732 0.500 0.581 I J 8.382 14.224 9.017 16.510 0.330 0.560 0.355 0.650 K 3.556 4.826 0.140 0.190 L M 0.508 27.700 1.397 29.620 0.020 1.060 0.055 1.
PAGE 8
TO-252 Mechanical Drawing E J TO-252 DIMENSION A F I B G C D H DIM MILLIMETERS INCHES A MIN 6.570 MAX 6.840 MIN 0.259 MAX 0.269 B 9.250 10.400 0.364 0.409 C D 0.550 2.560 0.700 2.670 0.022 0.101 0.028 0.105 E 2.300 2.390 0.090 0.094 F 0.490 0.570 0.019 0.022 G H 1.460 0.520 1.580 0.570 0.057 0.020 0.062 0.022 I 5.340 5.550 0.210 0.219 J 1.460 1.640 0.057 0.
PAGE 9
TO-92 Mechanical Drawing A DIM B A B C D E E C H F TO-92 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX 4.30 4.30 4.70 4.70 0.169 0.169 0.185 0.185 14.30(typ) 0.43 2.19 0.49 2.81 0.563(typ) 0.017 0.086 0.019 0.111 F 3.30 3.70 0.130 0.146 G H 2.42 0.37 2.66 0.43 0.095 0.015 0.105 0.017 G D SOP-8 Mechanical Drawing A SOP-8 DIMENSION DIM 9 16 B 1 P 8 A MAX 5.00 MIN 0.189 MAX 0.196 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D F 0.35 0.40 0.49 1.25 0.