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ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - LDO voltage regulator Positivbe, adjustable SOT 223 4

DCY (SOT-223) PACKAGE

(TOP VIEW)

INPUT

OUTPUT

ADJUST

OUTPUT

KTE PACKAGE

(TOP VIEW)

INPUT

OUTPUT

ADJUST

OUTPUT

KC (TO-220) PACKAGE

(TOP VIEW)

OUTPUT

INPUT

ADJUST

OUTPUT

KTT (TO-263) PACKAGE

(TOP VIEW)

INPUT

OUTPUT

ADJUST

OUTPUT

INPUT

ADJUST

OUTPUT

KCS / KCT (TO-220) PACKAGE

(TOP VIEW)

OUTPUT

LM317

www.ti.com

SLVS044V –SEPTEMBER 1997–REVISED FEBRUARY 2013

3-TERMINAL ADJUSTABLE REGULATOR

Check for Samples: LM317

FEATURES

• Output Voltage Range Adjustable From 1.25 V

• Thermal Overload Protection

to 37 V

• Output Safe-Area Compensation

• Output Current Greater Than 1.5 A

• Internal Short-Circuit Current Limiting

DESCRIPTION/ORDERING INFORMATION

The LM317 is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over

an output-voltage range of 1.25 V to 37 V. It is exceptionally easy to use and requires only two external resistors

to set the output voltage. Furthermore, both line and load regulation are better than standard fixed regulators.

In addition to having higher performance than fixed regulators, this device includes on-chip current limiting,

thermal overload protection, and safe operating-area protection. All overload protection remains fully functional,

even if the ADJUST terminal is disconnected.

The LM317 is versatile in its applications, including uses in programmable output regulation and local on-card

regulation. Or, by connecting a fixed resistor between the ADJUST and OUTPUT terminals, the LM317 can

function as a precision current regulator. An optional output capacitor can be added to improve transient

response. The ADJUST terminal can be bypassed to achieve very high ripple-rejection ratios, which are difficult

to achieve with standard three-terminal regulators.

Table 1. ORDERING INFORMATION

(1)

PACKAGE

(2)

ORDERABLE PART NUMBER TOP-SIDE MARKING

PowerFLEX™ – KTE Reel of 2000 LM317KTER OBSOLETE

Tube of 80 LM317DCY

SOT-223 – DCY L3

Reel of 2500 LM317DCYR

0°C to 125°C TO-220 – KC Tube of 50 LM317KC OBSOLETE

TO-220, short shoulder – KCS Tube of 20 LM317KCS LM317

TO-220, short shoulder – KCT Tube of 20 LM317KCT LM317

TO-263 – KTT Reel of 500 LM317KTTR LM317

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2PowerFLEX, PowerPAD are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (26 pages)

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LM317 www.ti.com SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 3-TERMINAL ADJUSTABLE REGULATOR Check for Samples: LM317 FEATURES 1 • • Output Voltage Range Adjustable From 1.25 V to 37 V Output Current Greater Than 1.
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LM317 SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 www.ti.
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LM317 www.ti.com SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 Recommended Operating Conditions VI – VO Input-to-output differential voltage IO Output current TJ Operating virtual junction temperature MIN MAX 3 40 UNIT V 1.
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LM317 SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 www.ti.com TYPICAL CHARACTERISTICS LOAD REGULATION LOAD REGULATION 1.4 10.01 TA = 25°C TA = –40°C 1.2 10.005 TA = –40°C 1 0.8 TA = 25°C V OUT – V V OUT – V 10 9.995 TA = 125°C 9.99 0.6 0.4 TA = 125°C 0.2 0 9.985 -0.2 VOUT = 10 V Nom VOUT = VREF 9.98 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 -0.
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LM317 www.ti.com SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 TYPICAL CHARACTERISTICS (continued) LINE REGULATION LINE TRANSIENT RESPONSE 20 1.285 10.10 CADJ = 0 µF 1.28 19 10.08 VOUT V IN Change – V 1.27 V OUT – V TA = –40°C 1.265 TA = 25°C 1.26 TA = 125°C 1.255 1.25 18 10.06 17 10.04 VIN 16 10.02 15 10.00 14 9.98 V OUT – V 1.275 V IN – V 65 55 45 35 25 Tim e – µs RIPPLE REJECTION vs FREQUENCY LINE TRANSIENT RESPONSE 20 10.12 -90 10.10 -80 10.
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LM317 SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) RIPPLE REJECTION vs OUTPUT CURRENT RIPPLE REJECTION vs OUTPUT VOLTAGE -68 -75 -66 -70 -65 Ripple Rejection – dB Ripple Rejection – dB -64 -62 -60 -58 -56 V IN = 15 V V OUT = 10 V f = 120 Hz TA = 25°C -54 -52 -60 -55 -50 V IN – V OUT = 15 V IOUT = 500 m A f = 120 Hz TA = 25°C -45 -40 IOUT – A 1.5 1.4 1.3 1.2 1 1.1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 0.
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LM317 www.ti.com SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 APPLICATION INFORMATION D1 (Note E) 1N4002 VI Input Output LM317 R1 240 Ω Adjust Ci (Note A) 0.1 µF VO (Note C) Vref = 1.25 V IAdj D2 (Note E) 1N4002 CO (Note B) 1.0 µF CADJ (Note D) R2 NOTES: A. Ci is not required, but is recommended, particularly if the regulator is not in close proximity to the power-supply filter capacitors. A 0.
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LM317 SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 www.ti.com LM317 +35 V INPUT OUTPUT VO R1 120 Ω ADJUST −10 V C1 0.1 µF R3 680 Ω R2 3 kΩ VO is calculated as: Ǔ ǒ VO + Vref 1 ) R2 ) R3 ) I Adj(R2 ) R3) – 10 V R1 Since IAdj typically is 50 µA, it is negligible in most applications. Figure 2. 0-V to 30-V Regulator Circuit LM317 VI INPUT VO OUTPUT ADJUST R1 240 Ω D1 1N4002 (see Note A) C1 0.1 µF C3 1 µF R2 5 kΩ C2 10 µF NOTE A: D1 discharges C2 if the output is shorted to ground.
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LM317 www.ti.com SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 R2 720 Ω R1 240 Ω ADJUST VI INPUT OUTPUT LM317 LM317 INPUT OUTPUT VO R3 120 Ω ADJUST C1 0.1 µF C2 1 µF Output Adjust R4 1 kΩ Figure 5. Tracking Preregulator Circuit LM317 VI INPUT VO OUTPUT ADJUST R1 1.2 kΩ R2 20 kΩ Figure 6. 1.
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LM317 SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 www.ti.com RS 0.2 Ω (see Note A) LM317 INPUT VI OUTPUT R1 240 Ω ADJUST R2 2.4 kΩ NOTE A: RS controls the output impedance of the charger. ZOUT + RS 1 ) R2 R1 The use of RS allows for low charging rates with a fully charged battery. ǒ Ǔ Figure 8. Battery-Charger Circuit LM317 VI INPUT 24 Ω OUTPUT ADJUST Figure 9. 50-mA Constant-Current Battery-Charger Circuit LM317 VI INPUT OUTPUT ADJUST VO = 15 V R1 240 Ω D1 1N4002 R3 50 kΩ R2 2.
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LM317 www.ti.com SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 LM317 INPUT VI OUTPUT 480 Ω ADJUST 120 Ω 12 VI(PP) 120 Ω ADJUST INPUT VI 480 Ω 6 VO(PP) 2 W (TYP) OUTPUT LM317 Figure 11. AC Voltage-Regulator Circuit LM317 VI+ INPUT OUTPUT ADJUST R1 240 Ω R2 1.1 kΩ R3 (see Note A) VI− NOTE A: R3 sets the peak current (0.6 A for a 1-Ω resistor). Figure 12.
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LM317 SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 www.ti.com LM317 VI INPUT 0.2 Ω OUTPUT ADJUST LM317 INPUT 0.2 Ω OUTPUT ADJUST 4.5 V to 25 V LM317 INPUT 0.2 Ω OUTPUT ADJUST 5 kΩ 100 Ω 5 kΩ _ TL080 + 2N2905 150 Ω 200 pF 1.5 kΩ Figure 13. Adjustable 4-A Regulator Circuit TIP73 2N2905 VI 500 Ω 5 kΩ 22 Ω LM317 INPUT VO OUTPUT ADJUST 120 Ω 10 µF 10 µF (see Note B) 1N4002 See Note A 47 µF NOTES: A. The minimum load current is 30 mA. B.
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LM317 www.ti.com SLVS044V – SEPTEMBER 1997 – REVISED FEBRUARY 2013 Changes from Revision U (Apr 2008) to Revision V • Page Added KCT orderable part information .................................................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 19-Sep-2013 Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Jul-2011 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) LM317DCYR SOT-223 DCY 4 2500 330.0 12.4 LM317KTTR DDPAK/ TO-263 KTT 3 500 330.0 24.4 Pack Materials-Page 1 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 7.05 7.4 1.9 8.0 12.0 Q3 10.6 15.8 4.9 16.0 24.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Jul-2011 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM317DCYR SOT-223 DCY 4 2500 340.0 340.0 38.0 LM317KTTR DDPAK/TO-263 KTT 3 500 340.0 340.0 38.
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MECHANICAL DATA MPDS094A – APRIL 2001 – REVISED JUNE 2002 DCY (R-PDSO-G4) PLASTIC SMALL-OUTLINE 6,70 (0.264) 6,30 (0.248) 3,10 (0.122) 2,90 (0.114) 4 0,10 (0.004) M 3,70 (0.146) 3,30 (0.130) 7,30 (0.287) 6,70 (0.264) Gauge Plane 1 2 0,84 (0.033) 0,66 (0.026) 2,30 (0.091) 4,60 (0.181) 1,80 (0.071) MAX 3 0°–10° 0,10 (0.004) M 0,25 (0.010) 0,75 (0.030) MIN 1,70 (0.067) 1,50 (0.059) 0,35 (0.014) 0,23 (0.009) Seating Plane 0,08 (0.003) 0,10 (0.0040) 0,02 (0.0008) 4202506/B 06/2002 NOTES: A. B.
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MECHANICAL DATA MPFM001E – OCTOBER 1994 – REVISED JANUARY 2001 KTE (R-PSFM-G3) PowerFLEX PLASTIC FLANGE-MOUNT 0.375 (9,52) 0.080 (2,03) 0.070 (1,78) 0.365 (9,27) 0.360 (9,14) 0.050 (1,27) 0.040 (1,02) 0.350 (8,89) 0.220 (5,59) NOM 0.010 (0,25) NOM Thermal Tab (See Note C) 0.360 (9,14) 0.350 (8,89) 0.295 (7,49) NOM 0.320 (8,13) 0.310 (7,87) 0.420 (10,67) 0.410 (10,41) 1 3 0.025 (0,63) 0.031 (0,79) 0.100 (2,54) Seating Plane 0.004 (0,10) 0.010 (0,25) M 0.005 (0,13) 0.001 (0,03) 0.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.