LM317T Fairchild Semiconductor, LM317T Datasheet

IC REG ADJ 1.5A 3 TERM TO-220

LM317T

Manufacturer Part Number
LM317T
Description
IC REG ADJ 1.5A 3 TERM TO-220
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of LM317T

Regulator Topology
Positive Adjustable
Voltage - Output
1.2 ~ 37 V
Voltage - Input
Up to 40V
Number Of Regulators
1
Current - Output
1.5A (Max)
Operating Temperature
0°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220-3 (Straight Leads)
Polarity
Positive
Number Of Outputs
1
Output Type
Adjustable
Output Voltage
1.2 V to 37 V
Output Current
2.2 A
Line Regulation
0.04 % / V
Load Regulation
25 mV % / V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
0 C
Mounting Style
Through Hole
Reference Voltage
1.3 V
Voltage Regulator Type
Linear
Topology
Standard
Regulator Output Type
Adjustable
Polarity Type
Positive
Package Type
TO-220AB
Operating Temp Range
0C to 125C
Operating Temperature Classification
Commercial
Pin Count
3 +Tab
Mounting
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Dropout (typical)
-
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
LM317TFS

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Features
• Output Current In Excess of 1.5A
• Output Adjustable Between 1.2V and 37V
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe Operating Area Compensation
• TO-220 Package
Internal Block Diagram
©2009 Fairchild Semiconductor Corporation
LM317
3-Terminal Positive Adjustable Regulator
Vin
Input
3
Reference
Voltage
Vadj
Adj
1
-
+
Description
This monolithic integrated circuit is an adjustable 3-terminal
positive voltage regulator designed to supply more than 1.5A
of load current with an output voltage adjustable over a
1.2V to 37V. It employs internal current limiting, thermal
shut-down and safe area compensation.
1. Adj 2. Output 3. Input
TO-220
Protection
Circuitry
1
Output
Rlimit
Output
www.fairchildsemi.com
2
Vo
Rev. 1.0.4

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LM317T Summary of contents

Page 1

... TO-220 Package Internal Block Diagram Vin 3 Input ©2009 Fairchild Semiconductor Corporation Description This monolithic integrated circuit is an adjustable 3-terminal positive voltage regulator designed to supply more than 1.5A of load current with an output voltage adjustable over a 1.2V to 37V. It employs internal current limiting, thermal shut-down and safe area compensation ...

Page 2

LM317 Absolute Maximum Ratings Parameter Input-Output Voltage Differential Lead Temperature Power Dissipation Operating Junction Temperature Range Storage Temperature Range Temperature Coefficient of Output Voltage Note 1: Absolute Maximum Ratings: are those values beyond which the safety of the device cannot ...

Page 3

Typical Performance Characteristics TEMPERATURE (°C) Figure 1. Load Regulation TEMPERATURE (°C) Figure 3. Dropout Voltage TEMPERATURE (°C) Figure 2. Adjustment Current TEMPERATURE (°C) Figure 4. Reference Voltage LM317 3 ...

Page 4

LM317 Typical Application • required when regulator is located an appreciable distance from power supply filter not needed for stability, however, it does improve transient response. o Since I is controlled to less than 100μA, ...

Page 5

Mechanical Dimensions Package TO-220 [ SINGLE GAUGE ] Dimensions in millimeters LM317 5 ...

Page 6

... LM317 Ordering Information Product Number LM317T DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS ...

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