LM317T

Semiconductors - ICs

> Power Management ICs - PMIC

> Voltage Regulators

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Price Comparison for LM317T
Series Information for LM317T - Texas Instruments

Features

  • feature
    1.5-A Output Current
  • feature
    80-dB Ripple Rejection
  • feature
    Adjustable Output Down to 1.25 V
  • feature
    Current Limit Constant With Temperature
  • feature
    Short-Circuit Protected Output
  • feature
    Typ. 0.01%/V Line Regulation
  • feature
    Typ. 0.1% Load Regulation
  • feature
    u221255u00b0C to 150u00b0C Operating Temperature Range

Description

V REG ADJ +1.2/37V TO-220-3 317
The LM117 and LM317-N series of adjustable 3-pin positive voltage regulators are capable of supplying in excess of 1.5 A over a 1.25-V to 37-V output range and a wide temperature range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators. The LM117 and LM317-N offer full overload protection such as current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. Typically, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios that are difficult to achieve with standard 3-terminal regulators. Because the regulator is floating and detects 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. That is, avoid short-circuiting the output. By connecting a fixed resistor between the adjustment pin and output, the LM117 and LM317-N can be also 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 1.25 V where most loads draw little current. For applications requiring greater output current, see data sheets for LM150 series (3 A), SNVS772, and LM138 series (5 A), SNVS771. For the negative complement, see LM137 (SNVS778) series data sheet.

Specifications

Output Type:
Adjustable
Input Voltage Min:
4.2V
Input Voltage Max:
40V
Fixed Output Voltage Nom.:
-
Adjustable Output Voltage Min:
1.2V
Adjustable Output Voltage Max:
37V
Output Current:
1.5A
Linear Regulator Case Style:
TO-220
No. of Pins:
3Pins
Operating Temperature Min:
0°C
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
MSL:
-
SVHC:
No SVHC (27-Jun-2018)
Base Number:
317
IC Generic Number:
317
No. of Outputs:
1Outputs
Operating Temperature Range:
0°C to +125°C
Output Voltage Adjustable Range:
1.2V to 37V
Output Voltage Max:
37V
Output Voltage Min:
1.2V
Primary Input Voltage:
40V
Supply Voltage Min:
3V
Voltage Regulator Type:
Positive Adjustable

Alternate Descriptions

Avnet America

Standard Regulator Pos 1.2V to 37V 1.5A 3-Pin(3+Tab) TO-220 Rail

Avnet America product

Avnet Europe

Standard Regulator Pos 1.2V to 37V 1.5A 3-Pin(3+Tab) TO-220 Rail

Avnet Europe product
Series Information for LM317T - ON Semiconductor

Description

REG LINEAR 1.2V TO 37V ADJ 3TO220

Specifications

Output Type:
Adjustable
Input Voltage Min:
4.2V
Input Voltage Max:
40V
Fixed Output Voltage Nom.:
-
Adjustable Output Voltage Min:
1.2V
Adjustable Output Voltage Max:
37V
Output Current:
1.5A
Linear Regulator Case Style:
TO-220
No. of Pins:
3Pins
Operating Temperature Min:
0°C
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
MSL:
-
SVHC:
No SVHC (15-Jan-2018)
RoHS Phthalates Compliant:
Yes
Base Number:
317
No. of Outputs:
1Outputs
Operating Temperature Range:
0°C to +125°C
Output Voltage Adjustable Range:
1.2V to 37V
Output Voltage Max:
37V
Output Voltage Min:
1.2V
Primary Input Voltage:
40V

Alternate Descriptions

Avnet America

Standard Regulator Pos 1.2V to 37V 0.3A 3-Pin(3+Tab) TO-220AB Rail

Avnet America product
Series Information for LM317T - STMicroelectronics

Description

V REG ADJ +1.2/37V TO-220-3 317

Specifications

Output Type:
Adjustable
Input Voltage Min:
4.2V
Input Voltage Max:
40V
Fixed Output Voltage Nom.:
-
Adjustable Output Voltage Min:
1.2V
Adjustable Output Voltage Max:
37V
Output Current:
2.2A
Linear Regulator Case Style:
TO-220
No. of Pins:
3Pins
Operating Temperature Min:
0°C
Operating Temperature Max:
125°C
Product Range:
LM217 LM317 Series
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)
Device Marking:
LM317T
IC Generic Number:
317
No. of Outputs:
1Outputs
Output Voltage Max:
37V
Output Voltage Min:
1.2V
Voltage Regulator Type:
Positive Adjustable

Alternate Descriptions

Avnet America

Standard Regulator Pos 1.2V to 37V 0.4A 3-Pin(3+Tab) TO-220 Rail

Avnet America product

Avnet Europe

Standard Regulator Pos 1.2V to 37V 0.4A 3-Pin(3+Tab) TO-220 Rail

Avnet Europe product

Avnet Asia

Standard Regulator Pos 1.2V to 37V 0.4A 3-Pin(3+Tab) TO-220 Rail

Avnet Asia product

Distrelec

.2369

Distrelec product

Conrad

Short-circuit-proof, for stabilised power supplies with a wide voltage control range.

Conrad product

Future Electronics

LM317 Series 1.5 A 1.2 to 37 V Adjustable Positive Voltage Regulator - TO-220