MICROCIRCUIT DATA SHEET Original Creation Date: 06/27/95 Last Update Date: 08/23/04 Last Major Revision Date: 03/11/96 MNLM117-K REV 1C1 POSITIVE THREE-TERMINAL ADJUSTABLE VOLTAGE REGULATOR General Description The LM117 adjustable 3-terminal positive voltage regulator is capable of supplying in excess of 1.5A over a 1.2V to 37V output range. It is exceptionally easy to use and requires only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators. In addition to higher performance than fixed regulators, the LM117 offers full overload protection available only in IC's. Included on the chip are current limit, thermal overload protection and safe area protection. All 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. An 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 3-terminal 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 input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to output differential is not exceeded, (i.e., avoid short-circuiting the output). Also, 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 (3A) and LM138 (5A) data sheets. For the negative complement, see LM137 data sheet. Industry Part Number NS Part Numbers LM117K LM117K/883 Prime Die LM117K Processing Subgrp Description MIL-STD-883, Method 5004 1 2 3 4 5 6 7 8A 8B 9 10 11 Quality Conformance Inspection MIL-STD-883, Method 5005 1 Static tests at Static tests at Static tests at Dynamic tests at Dynamic tests at Dynamic tests at Functional tests at Functional tests at Functional tests at Switching tests at Switching tests at Switching tests at Temp ( oC) +25 +125 -55 +25 +125 -55 +25 +125 -55 +25 +125 -55 MICROCIRCUIT DATA SHEET MNLM117-K REV 1C1 Features - Guaranteed 1.5A output current Adjustable output down to 1.2V Current limit constant with temperature 80 dB ripple rejection Output is short-circuit protected 2 MICROCIRCUIT DATA SHEET MNLM117-K REV 1C1 (Absolute Maximum Ratings) (Note 1) Power Dissipation (Note 2) Internally Limited Input-Output Voltage Differential +40V, -0.3V Maximum Junction Temperature 150 C Storage Temperature Range -65 C to +150 C Lead Temperature (Soldering, 10 seconds) 300 C Thermal Resistance ThetaJA (Still Air) (500LF/Min Air flow) 39 C/W 14 C/W ThetaJC ESD Tolerance (Note 3) 1.9 C/W 3000V Note 1: Note 2: Note 3: Absolute 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. Some performance characteristics may degrade when the device is not operated under the listed test conditions. The maximum power dissipation must be derated at elevated temperatures and is dictated by Tjmax (maximum junction temperature), ThetaJA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is Pdmax = (Tjmax - TA)/ThetaJA or the number given in the Absolute Maximum Ratings, whichever is lower. Human body model, 1.5K Ohms in series with 100pF. Recommended Operating Conditions Operating Temperature Range -55 C < TA < +125 C 3 MICROCIRCUIT DATA SHEET MNLM117-K REV 1C1 Electrical Characteristics DC PARAMETERS (The following conditions apply to all the following parameters, unless otherwise specified.) DC: Vdiff = Vin - Vout, Il = 10mA SYMBOL Iadj Iq Vref Rline Rload Delta Iadj PARAMETER Adjustment Pin Current Minimum Load Current Reference Voltage Line Regulation Load Regulation Adjustment Current Change CONDITIONS NOTES PINNAME MIN MAX UNIT SUBGROUPS Vdiff = 3V 100 uA 1 Vdiff = 3.3V 100 uA 2, 3 Vdiff = 40V 100 uA 1, 2, 3 Vdiff = 3V, Vout = 1.7V 5 mA 1 Vdiff = 3.3V, Vout = 1.7V 5 mA 2, 3 Vdiff = 40V, Vout = 1.7V 5 mA 1, 2, 3 Vdiff = 3V 1.2 1.3 V 1 Vdiff = 3.3V 1.2 1.3 V 2, 3 Vdiff = 40V 1.2 1.3 V 1, 2, 3 3V < Vdiff < 40V, Vout = 1.2V -8.9 8.9 mV 1 3.3V < Vdiff < 40V, Vout = 1.2V -22.2 22.2 mV 2, 3 Vdiff = 3V, Il = 10mA to 1.5A -15 15 mV 1 Vdiff = 3.3V, Il = 10mA to 1.5A -15 15 mV 2, 3 Vdiff = 40V, Il = 10mA to 300mA -15 15 mV 1 Vdiff = 40V, Il = 10mA to 195mA -15 15 mV 2, 3 Vdiff = 3V, Il = 10mA to 1.5A -5 5 uA 1 Vdiff = 3.3V, Il = 10mA to 1.5A -5 5 uA 2, 3 Vdiff = 40V, Il = 10mA to 300mA -5 5 uA 1 Vdiff = 40V, Il = 10mA to 195mA -5 5 uA 2, 3 3V < Vdiff < 40V -5 5 uA 1 3.3V < Vdiff < 40V -5 5 uA 2, 3 Ios Short Circuit Current Vdiff = 10V 1.6 3.4 A 1 Theta R Thermal Regulation TA=25 C, Vdiff=40V, Il=300mA, t=20mS -10.5 10.5 mV 1 Icl Current Limit Vdiff < 15V 1 1.5 A 1, 2, 3 Vdiff = 40V 1 0.3 A 1 4 MICROCIRCUIT DATA SHEET MNLM117-K REV 1C1 Electrical Characteristics AC PARAMETERS SYMBOL Rr PARAMETER CONDITIONS NOTES Ripple Rejection Vin = +6.25V, Vout = Vref, f = 120Hz, ei = 1Vrms, Il = 0.5A PINNAME 2 MIN MAX 66 SUBGROUPS UNIT dB 4, 5, 6 DC PARAMETERS: DRIFT VALUES (The following conditions apply to all the following parameters, unless otherwise specified.) DC: Vdiff = Vin - Vout, Il = 10mA. "Deltas not required on B-Level product. Deltas required for S-Level product ONLY as specified on Internal Processing Instructions (IPI)." Iadj Adjustment Pin Current Vdiff = 40V -10 10 uA 1 Vref Reference Voltage Vdiff = 3V -0.01 0.01 V 1 Note 1: Note 2: Guaranteed Parameter, not tested. Tested at +25 C; guaranteed, but not tested at +125 C and -55 C. 5 MICROCIRCUIT DATA SHEET MNLM117-K REV 1C1 Graphics and Diagrams GRAPHICS# DESCRIPTION K02CRE METAL CAN TO-3, 2LD, LOW PROFILE (P/P DWG) P000173A METAL CAN (KA), TO-3, 2LD, LOW PROFILE (PINOUT) See attached graphics following this page. 6 N MICROCIRCUIT DATA SHEET MNLM117-K REV 1C1 Revision History Rev ECN # 1C1 M0004399 08/23/04 Rel Date Originator Changes Rose Malone Updated MDS: MNLM117-K, Rev. 1B0 to 1C1. Added power dissipation note, and pinout. Updated Thermal Resistance data and Mkt Drawing, 7