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LM317L — 3-Terminal 0.1A Positive Adjustable Regulator

LM317L Rev. 1.1.0 1

December 2012

LM317L

3-Terminal 0.1A Positive Adjustable Regulator

Features

• Output Current in Excess of 100 mA

• Output Adjustable Between 1.2 V and 37 V

• Internal Thermal Overload Protection

• Internal Short Circuit Current Limiting

• Output Transistor Safe Area Compensation

• Floating Operation for High-Voltage Applications

Ordering Information

Part Number Operating Temperature Range Top Mark Package Packing Method

LM317LM 0°C to +125°C LM317LM 8-SOIC Rail

LM317LMX 0°C to +125°C LM317LM 8-SOIC Tape and Reel

LM317LZ 0°C to +125°C LM317LZ TO-92 Bulk

LM317LZX 0°C to +125°C LM317LZ TO-92 Tape and Reel

Description

The LM317L is a 3-terminal, adjustable, positive-voltage

regulator capable of supplying in excess of 100 mA over

an output voltage range of 1.2 V to 37 V. This voltage

regulator requires only two external resistors to set the

output voltage.

TO-92

1. Adj 2. Output 3. Input

8-SOIC

1. Input 2.3.6.7. Output

4. Adj 5.8. NC

LM317L — 3-Terminal 0.1A Positive Adjustable Regulator

LM317L Rev. 1.1.0 2

Block Diagram

Figure 1. Block Diagram

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-

ble above the re co mmen ded operating conditions and s tres si ng the parts to these level s i s not recommended. In addi-

tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The

absolute maximum ratings are stress ratings only. Values are at TA = 25°C unless otherwise noted.

Symbol Parameter Value Unit

VI - VOInput-Output Voltage Differential 40 V

PDPower Dissipation Internally limited W

TJOperating Junction Temperature Range 0 ~ +125 °C

TSTG Storage Temperature Range -65 ~ +125 °C

Rlimit

3Vin

Voltage

Reference

Vadj

Protection

Circuitry

Input

Output

LIMIT

ADJ

LM317L — 3-Terminal 0.1A Positive Adjustable Regulator

LM317L Rev. 1.1.0 3

Electrical Characteristics

VI - VO = 5 V, IO = 40 mA, 0°C ≤ TJ ≤ +125°C, PDMAX = 625 mW, unless otherwise specified.

Notes:

1. Load and Line regulation are specified at constant junction temperature. Change in VO due to heating effects

must be taken into account separately. Pulse testing with low duty cycle is used.

Symbol Parameter Conditions Min. Typ. Max. Unit

RLINE Line Regulation(1) TA = +25°C, 3 V ≤ VI − VO ≤ 40 V 0.01 0.04 % / V

3 V ≤ VI − VO ≤ 40 V 0.02 0.07 % / V

RLOAD Load Regulation(1)

TA = +25°C,10 mA ≤ IO ≤1 00 mA,

VO ≤ 5 V 525mV

TA = +25°C,10 mA ≤ IO ≤100 mA,

VO ≥ 5 V 0.1 0.5 % / VO

10 mA ≤ IO ≤100 mA, VO ≤ 5 V 20 70 mV

10 mA ≤ IO ≤100 mA, VO ≥ 5 V 0.3 1.5 % / VO

IADJ Adjustment Pin Curre nt 50 100 μA

ΔIADJ Adjustme nt Pin Curre nt Chang e 3 V ≤ VI - VO ≤ 40 V,

10 mA ≤ IO ≤ 100 mA,

PD < PDMAX

0.2 5 μA

VREF Reference Voltage 3 V < VI - VO < 40 V,

10 mA ≤ IO ≤100 mA,

PD ≤ PDMAX

1.20 1.25 1.30 V

STTTemperature Stability 0.7 %

IL(MIN) Minimum Load Current to

Maintain Regulation VI - VO = 40 V 3.5 10 mA

IO(MAX) Maximum Output Current VI - VO ≤ 15 V, PD < PDMAX 100 200 mA

TA = +25°C,

VI - VO ≤ 40 V, PD < PDMAX 25 50 mA

eNRMS Noise, % of VOUT TA = +25°C, 10 Hz < f < 10 kHz 0.003 % / VO

RR Ripple Rejection

VO = 10V, f = 120 Hz,

without CADJ 65 dB

VO = 10V, f = 120 Hz,

CADJ = 10 μF66 80 dB

ST Long-Term Stability TJ = +125°C, 1000 Hours 0.3 %

LM317L — 3-Terminal 0.1A Positive Adjustable Regulator

LM317L Rev. 1.1.0 4

Typical Application

Figure 2. 5V Electronic Shutdown Regulator

D1 protects the device during an input short circuit.

Figure 3. Slow Turn-On Regulator

Figure 4. Current Regulator

LM317L

120

Output

Input

KSP2222

720 TTL CONTROL

1.0

1N4002

ADJ

MINIMUM V

= 1.25V

LM317L

Output

Input

KSP2907

50K 1N4001

1.0

ADJ

240

Output

Input R2

ADJ

R1 I

LM317L

IOMAX VREF

-----------------





IADJ 1.25V

----------------@+=

IOMAX VREF

R1 R2+

----------------------





ADJ

+1.25V

R1 R2+

----------------------@

5mA IO500mA<<

LM317L — 3-Terminal 0.1A Positive Adjustable Regulator

LM317L Rev. 1.1.0 5

Physical Dimensions

Figure 5. 3-Lead, TO-92, Molded, Standard Straight Lead

Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner

without notic e. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor represe ntative to verify or

obtain the most recent revision. Package specifica tions do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the

warranty therein, which covers Fairchild produ cts.

Always visit Fairchild Semiconduct or’s online packaging are a for the most recent package drawings :

http://www.fairchildsemi.com/packaging/.

TO-92 Bulk Type

LM317L — 3-Terminal 0.1A Positive Adjustable Regulator

LM317L Rev. 1.1.0 6

Physical Dimensions

Figure 6. 3-Lead, TO-92, Molded, 0.200 in Line Spacing Lead Form

Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner

without notic e. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor represe ntative to verify or

obtain the most recent revision. Package specifica tions do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the

warranty therein, which covers Fairchild produ cts.

Always visit Fairchild Semiconduct or’s online packaging are a for the most recent package drawings :

http://www.fairchildsemi.com/packaging/.

For current tape an d reel specifications, visit Fair child Semiconductor’s online pac kaging area:

http://www.fairchildsemi.com/products/discrete/pdf/to92_tr.pdf.

T O-92 Tape and Reel Type

LM317L — 3-Terminal 0.1A Positive Adjustable Regulator

LM317L Rev. 1.1.0 7

Physical Dimensions (Continued)

Figure 7. 8-Lead, SOIC, JEDEC MS 0-12, 0.150 inch Narrow Body

Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner

without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or

obtain the most recent revision. Package specifications do not expand the te rms of Fairchild’s wo rldwide terms and condition s, specifically the

warranty therein, which covers Fairchild p roducts.

Always visit Fairchild Semic onductor’s online packag ing area for the most recent package drawings:

http://www.fairchildsemi.com/packaging/.

For current tape an d reel specifications, vis it Fairchild Semicond uctor’s on line packaging area:

http://www.fairchildsemi.com/products/discrete/pdf/soic8_tr.pdf.

8-SOIC

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The datasheet is for reference information only.

Rev. I63

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