LM117/LM317A/LM317 3-Terminal Adjustable Regulator

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LM117/LM317/LM317 3Terminal djustable Regulator General Description The LM117 series of adjustable 3terminal positive voltage regulators is capable of supplying in excess of over a 1.

1 LM117/LM317/LM317 3Terminal djustable Regulator General Description The LM117 series of adjustable 3terminal positive voltage regulators is capable of supplying in excess of over a 1.2V to 37V output 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. lso, the LM117 is packaged in standard transistor packages which are easily mounted and handled. In addition to higher performance than fixed regulators, the LM117 series offers full overload protection available only in IC's. Included on the chip are current limit, thermal overload protection and safe area protection. ll overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. Normally, 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. n optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3terminal regulators. Besides replacing fixed regulators, the LM117 is useful in a wide variety of other applications. Since the regulator is floating and sees only the inputtooutput differential voltage, supplies of several hundred volts can be regulated as long as Typical pplications 1.2V 25V djustable Regulator the maximum input to output differential is not exceeded, i.e., avoid shortcircuiting the output. lso, it makes an especially simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment pin and output, the LM117 can be 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 1.2V where most loads draw little current. For applications requiring greater output current, see LM150 series (3) and LM138 series (5) data sheets. For the negative complement, see LM137 series data sheet. Features Guaranteed 1% output voltage tolerance (LM317) Guaranteed max. %/V line regulation (LM317) Guaranteed max. % load regulation (LM117) Guaranteed output current djustable output down to 1.2V Current limit constant with temperature P + Product Enhancement tested 80 db ripple rejection Output is shortcircuit protected LM117/LM317/LM317 Package Options Part Number Suffix Package Output Current LM117, LM317 K TO3 LM317, LM317 T TO220 LM317 S TO263 LM317, LM317 EMP SOT LM117, LM317, LM317 H TO39 LM117 E LCC LM317, LM317 MDT TO252 LM117/LM317/LM317 3Terminal djustable Regulator Full output current not available at high inputoutput voltages *Needed if device is more than 6 inches from filter capacitors Optional improves transient response. Output capacitors in the range of 1μF to 1000μF of aluminum or tantalum electrolytic are commonly used to provide improved output impedance and rejection of transients. SOT223 vs. TO252 (DPak) Packages Scale 1: National Semiconductor Corporation 9063

2 4Lead SOT223 (EMP) Front View NS Package Number MP04 TO252 (MDT) LM117/LM317/LM317 Ordering Information Front View NS Package Number TD03B Package TO3 Metal Can (K) TO220 3 Lead TO263 3 Lead SOT223 4 Lead TO39 Metal Can (H) Temperature Range Output Current Order Number Package Marking Transport Media 55 C T J +150 C LM117K STEEL LM117K STEEL P+ 50 Per Bag 0 C T J +125 C LM317K STEEL LM317K STEEL P+ 50 Per Bag NSC Drawing 55 C T J +150 C LM117K/883 LM117K/ Per Bag K02C 40 C T J +125 C LM317T LM317T P+ 45 Units/Rail 0 C T J +125 C LM317T LM317T P+ 45 Units/Rail 0 C T J +125 C 0 C T J +125 C C T J +125 C 1.0 LM317S LM317SX LM317EMP LM317EMPX LM317EMP LM317EMPX LM317S P+ N01 N07 45 Units/Rail 500 Units Tape and Reel 1k Units Tape and Reel 2k Units Tape and Reel 1k Units Tape and Reel 2k Units Tape and Reel 55 C T J +150 C LM117H LM117H P+ 500 Per Box 55 C T J +150 C LM117H/883 LM117H/ Per Tray 40 C T J +125 C LM317H LM317H P+ 500 Per Box 0 C T J +125 C LM317H LM317H P+ 500 Per Box K02 T03B TS3B MP04 LCC 55 C T J +150 C LM117E/883 LM117E/ Units/Rail E20 TO252 3 Lead DPack 0 C T J +125 C 40 C T J +125 C LM317MDT LM317MDTX LM317MDT LM317MDTX LM317MDT LM317MDT 75 Units/Rail 2.5k Units Tape and Reel 75 Units/Rail 2.5k Units Tape and Reel H03 TD03B 3

3 LM117/LM317/LM317 bsolute Maximum Ratings (Note 1) If Military/erospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Dissipation Internally Limited InputOutput Voltage Differential +40V, V Storage Temperature 65 C to +150 C Lead Temperature Metal Package (Soldering, 10 seconds) 300 C Plastic Package (Soldering, 4 seconds) 260 C ESD Tolerance (Note 5) 3 kv Operating Temperature Range LM C T J +150 C LM C T J +125 C LM317 0 C T J +125 C Preconditioning Thermal Limit BurnIn ll Devices 100% LM117 Electrical Characteristics (Note 3) Specifications with standard type face are for T J = 25 C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, V IN V OUT = 5V, and I OUT = 10 m. Parameter Conditions LM117 (Note 2) Min Typ Max Units Reference Voltage 3V (V IN V OUT ) 40V, V Line Regulation 3V (V IN V OUT ) 40V (Note 4) Load Regulation (Note 4) Thermal Regulation 20 ms Pulse %/W djustment Pin Current μ %/V % djustment Pin Current Change 3V (V IN V OUT ) 40V μ Temperature Stability T MIN T J T MX 1 % Minimum Load Current (V IN V OUT ) = 40V m (V IN V OUT ) 15V Current Limit K Package H, E Package (V IN V OUT ) = 40V K Package H, E Package RMS Output Noise, % of V OUT 10 Hz f 10 khz % Ripple Rejection Ratio V OUT = 10V, f = 120 Hz, C DJ = 0 μf 65 db V OUT = 10V, f = 120 Hz, C DJ = 10 μf db LongTerm Stability T J = 125 C, 1000 hrs 1 % Thermal Resistance, θ JC JunctiontoCase K (TO3) Package H (TO39) Package E (LCC) Package Thermal Resistance, θ J Junctiontombient (No Heat Sink) K (TO3) Package H (TO39) Package E (LCC) Package

4 LM317 and LM317 Electrical Characteristics (Note 3) Specifications with standard type face are for T J = 25 C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, V IN V OUT = 5V, and I OUT = 10 m. Parameter Reference Voltage Conditions Line Regulation 3V (V IN V OUT ) 40V (Note 4) Load Regulation (Note 4) LM317 LM317 Min Typ Max Min Typ Max Units V 3V (V IN V OUT ) 40V, V Thermal Regulation 20 ms Pulse %/W djustment Pin Current μ %/V % LM117/LM317/LM317 djustment Pin Current Change 3V (V IN V OUT ) 40V μ Temperature Stability T MIN T J T MX 1 1 % Minimum Load Current (V IN V OUT ) = 40V m Current Limit (V IN V OUT ) 15V K, T, S Packages EMP Package H, MDT Packages (V IN V OUT ) = 40V K, T, S Packages EMP Package H, MDT Packages RMS Output Noise, % of V OUT 10 Hz f 10 khz % Ripple Rejection Ratio V OUT = 10V, f = 120 Hz, C DJ = 0 μf db V OUT = 10V, f = 120 Hz, C DJ = 10 μf db LongTerm Stability T J = 125 C, 1000 hrs 1 1 % Thermal Resistance, θ JC JunctiontoCase Thermal Resistance, θ J Junctiontombient (No Heat Sink) K (TO3) Package T (TO220) Package S (TO263) Package EMP (SOT223) Package H (TO39) Package MDT (TO252) Package K (TO3) Package T (TO220) Package S (TO263) Package (Note 6) EMP (SOT223) Package (Note 6) H (TO39) Package MDT (TO252) Package (Note 6) Note 1: bsolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed Note 2: Refer to RETS117H drawing for the LM117H, or the RETS117K for the LM117K military specifications. Note 3: I MX = for the K (TO3), T (TO220), and S (TO263) packages. I MX = 1.0 for the EMP (SOT223) package. I MX = for the H (TO39), MDT (TO252), and E (LCC) packages. Device power dissipation (P D ) is limited by ambient temperature (T ), device maximum junction temperature (T J ), and package thermal resistance (θ J ). The maximum allowable power dissipation at any temperature is : P D(MX) = ((T J(MX) T )/θ J ). ll Min. and Max. limits are guaranteed to National's verage Outgoing Quality Level (OQL). Note 4: Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specifications for thermal regulation. Note 5: Human body model, 100 pf discharged through a kω resistor. Note 6: When surface mount packages are used (TO263, SOT223, TO252), the junction to ambient thermal resistance can be reduced by increasing the PC board copper area that is thermally connected to the package. See the pplications Hints section for heatsink techniques

5 LM117/LM317/LM317 3Lead TO263 (S) NS Package Number TS3B Ceramic Leadless Chip Carrier (E) NS Package Number E20 25

6 LM117/LM317/LM317 4Lead SOT223 (EMP) NS Package Number MP04 3Lead DPack (MDT) NS Package Number TD03B 26

LM117/LM317A/LM317 3-Terminal Adjustable Regulator

LM117/LM317A/LM317 3-Terminal Adjustable Regulator LM117/LM317/LM317 3-Terminal djustable Regulator General Description Typical pplications 1.2V 25V djustable Regulator The LM117 series of adjustable 3-terminal positive voltage regulators is capable of