LM117/LM317A/LM317 3-Terminal Adjustable …

1 October 20, 2008LM117/ lm317a /LM3173- terminal Adjustable RegulatorGeneral DescriptionThe lm117 series of Adjustable 3-Terminal positive voltageregulators is capable of supplying in excess of over to 37V output range. They are exceptionally easy to useand require only two external resistors to set the output volt-age. Further, both line and load regulation are better thanstandard fixed regulators . Also, the lm117 is packaged instandard transistor packages which are easily mounted addition to higher performance than fixed regulators , theLM117 series offers full overload protection available only inIC's.

2 Included on the chip are current limit, thermal overloadprotection and safe area protection. All overload protectioncircuitry remains fully functional even if the adjustment termi-nal is , no capacitors are needed unless the device is sit-uated more than 6 inches from the input filter capacitors inwhich case an input bypass is needed. An optional output ca-pacitor can be added to improve transient response. Theadjustment terminal can be bypassed to achieve very highripple rejection ratios which are difficult to achieve with stan-dard 3-Terminal replacing fixed regulators , the lm117 is useful in awide variety of other applications.

3 Since the regulator is float-ing and sees only the input-to-output differential voltage,supplies of several hundred volts can be regulated as long asthe maximum input to output differential is not exceeded, ,avoid short-circuiting the , it makes an especially simple Adjustable switching reg-ulator, a programmable output regulator, or by connecting afixed resistor between the adjustment pin and output, theLM117 can be used as a precision current regulator. Supplieswith electronic shutdown can be achieved by clamping theadjustment terminal to ground which programs the output where most loads draw little applications requiring greater output current, see LM150series (3A) and LM138 series (5A) data sheets.

4 For the neg-ative complement, see LM137 series data Guaranteed 1% output voltage tolerance ( lm317a ) Guaranteed max. line regulation ( lm317a ) Guaranteed max. load regulation ( lm117 ) Guaranteed output current Adjustable output down to Current limit constant with temperature P+ Product Enhancement tested 80 dB ripple rejection Output is short-circuit protectedTypical 25V Adjustable Regulator906301 Full output current not available at high input-output voltages *Needed if device is more than 6 inches from filter capacitors. Optional improves transient response. Output capacitors in the rangeof 1 F to 1000 F of aluminum or tantalum electrolytic are commonly usedto provide improved output impedance and rejection of Package OptionsPartNumberSuffixPackageOutputCurr entLM117, , , , lm317a , , vs.

5 TO-252 (D-Pak)Packages906354 Scale 1:1 2008 National Semiconductor 3-Terminal Adjustable RegulatorConnection DiagramsTO-3 (K)Metal Can Package906330 CASE IS OUTPUTB ottom ViewSteel PackageNS Package Number K02A or K02 CTO-39 (H)Metal Can Package906331 CASE IS OUTPUTB ottom ViewNS Package Number H03 ATO-263 (S)Surface-Mount Package906335 Top ViewTO-220 (T)Plastic Package906332 Front ViewNS Package Number T03 BTO-263 (S)Surface-Mount Package906336 Side ViewNS Package Number TS3 BCeramic LeadlessChip Carrier (E)906334 Top ViewNS Package Number SOT-223 (EMP)906359 Front ViewNS Package Number MP04 ATO-252 (MDT)906366 Front ViewNS Package Number TD03 BOrdering InformationPackageTemperatureRangeOutput CurrentOrderNumberPackageMarkingTranspor tMediaNSCD rawingTO-3 Metal Can(K)

6 55 C TJ +150 STEELLM117K STEEL P+50 Per BagK02A0 C TJ +125 STEELLM317K STEEL P+50 Per Bag 55 C TJ +150 Per BagK02 CTO-2203- Lead 40 C TJ +125 P+45 Units/RailT03B0 C TJ +125 P+45 Units/RailTO-2633- Lead0 C TJ +125 P+45 Units/RailTS3 BLM317SX500 Units Tape and ReelSOT-2234- Lead0 C TJ +125 Units Tape and ReelMP04 ALM317 EMPX2k Units Tape and Reel 40 C TJ +125 Units Tape and ReelLM317 AEMPX2k Units Tape and ReelTO-39 Metal Can(H) 55 C TJ +150 P+500 Per BoxH03A 55 C TJ +150 Per Tray 40 C TJ +125 P+500 Per Box0 C TJ +125 P+500 Per BoxLCC 55 C TJ +150 Units/RailE20 ATO-2523- LeadD-Pack0 C TJ +125 Units Tape and Reel 40 C TJ +125 Units Tape and Maximum Ratings (Note 1)If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and DissipationInternally LimitedInput-Output Voltage Differential+40V, Temperature 65 C to +150 CLead Temperature Metal Package (Soldering, 10 seconds)300 C Plastic Package (Soldering, 4 seconds)

7 260 CESD Tolerance (Note 5)3 kVOperating Temperature RangeLM117 55 C TJ +150 CLM317A 40 C TJ +125 CLM3170 C TJ +125 CPreconditioningThermal Limit Burn-InAll Devices 100% lm117 Electrical Characteristics(Note 3)Specifications with standard type face are for TJ = 25 C, and those with boldface type apply over full Operating TemperatureRange. Unless otherwise specified, VIN VOUT = 5V, and IOUT = 10 (Note 2)MinTypMaxUnitsReference Voltage3V (VIN VOUT) 40V,10 mA IOUT Regulation3V (VIN VOUT) 40V (Note 4) Regulation10 mA IOUT IMAX (Note 4) Regulation20 ms Pulse Pin Current 50100 AAdjustment Pin Current Change10 mA IOUT IMAX3V (VIN VOUT) 40V ATemperature StabilityTMIN TJ TMAX 1 %Minimum Load Current(VIN VOUT) = 40V Limit(VIN VOUT) 15V K Package H, E (VIN VOUT)

8 = 40V K Package H, E ARMS Output Noise, % of VOUT10 Hz f 10 kHz %Ripple Rejection RatioVOUT = 10V, f = 120 Hz, CADJ = 0 F 65 dBVOUT = 10V, f = 120 Hz, CADJ = 10 F6680 dBLong-Term StabilityTJ = 125 C, 1000 hrs Resistance, JCJunction-to-CaseK (TO-3) PackageH (TO-39) PackageE (LCC) Package 22112 C/WThermal Resistance, JAJunction-to-Ambient(No Heat Sink)K (TO-3) PackageH (TO-39) PackageE (LCC) Package 3918688 and lm317 Electrical Characteristics(Note 3)Specifications with standard type face are for TJ = 25 C, and those with boldface type apply over full Operating TemperatureRange. Unless otherwise specified, VIN VOUT = 5V, and IOUT = 10 MinTypMaxMinTypMaxUnitsReference Voltage (VIN VOUT) 40V,10 mA IOUT Regulation3V (VIN VOUT) 40V (Note 4) Regulation10 mA IOUT IMAX (Note 4) Regulation20 ms Pulse Pin Current 50100 50100 AAdjustment Pin Current Change10 mA IOUT IMAX3V (VIN VOUT) 40V ATemperature StabilityTMIN TJ TMAX 1 1 %Minimum Load Current(VIN VOUT) = 40V Limit(VIN VOUT) 15V K, T, S Packages EMP Package H, MDT (VIN VOUT)

9 = 40V K, T, S Packages EMP Package H, MDT ARMS Output Noise, % of VOUT10 Hz f 10 kHz %Ripple Rejection RatioVOUT = 10V, f = 120 Hz, CADJ = 0 F 65 65 dBVOUT = 10V, f = 120 Hz, CADJ = 10 F6680 6680 dBLong-Term StabilityTJ = 125 C, 1000 hrs Resistance, JCJunction-to-CaseK (TO-3) PackageT (TO-220) PackageS (TO-263) PackageEMP (SOT-223) PackageH (TO-39) PackageMDT (TO-252) Package C/WThermal Resistance, JAJunction-to-Ambient(No Heat Sink)K (TO-3) PackageT (TO-220) PackageS (TO-263) Package (Note 6)EMP (SOT-223) Package (Note 6)H (TO-39) PackageMDT (TO-252) Package (Note 6) ---140186103 395050140186103 C/WNote 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.

10 Operating Ratings indicate conditions for which the device isintended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical guaranteed specifications apply only for the test conditions 2:Refer to RETS117H drawing for the LM117H, or the RETS117K for the LM117K military 3:IMAX = for the K (TO-3), T (TO-220), and S (TO-263) packages. IMAX = for the EMP (SOT-223) package. IMAX = for the H (TO-39), MDT(TO-252), and E (LCC) packages. Device power dissipation (PD) is limited by ambient temperature (TA), device maximum junction temperature (TJ), and packagethermal resistance ( JA).