MICROCIRCUIT DATA SHEET Original Creation Date: 06/27/95 Last Update Date: 05/02/00 Last Major Revision Date: 06/27/95 MNLM117-E REV 0B1 POSITIVE THREE-TERMINAL ADJUSTABLE VOLTAGE REGULATOR General Description The LM117 adjustable 3-terminal positive voltage regulator is capable of supplying in excess of 0.5A 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, 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. Industry Part Number NS Part Numbers LM117E LM117E/883 Prime Die LM117H 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-E REV 0B1 Features - Guaranteed 0.5A 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-E REV 0B1 (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) 260 C Thermal Resistance ThetaJA (Still Air) (500LF/Min Air flow) 88 C/W 62 C/W ThetaJC ESD Tolerance (Note 3) 12.0 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 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-E REV 0B1 Electrical Characteristics DC PARAMETERS (The following conditions apply to all the following parameters, unless otherwise specified.) DC: Vdiff = (Vin -Vout), Il = 8mA, Pd <= 1.5W SYMBOL Iadj Iq Vref Vrline Vrload 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 100mA -15 15 mV 1 Vdiff = 3.3V, Il = 10mA to 100mA -15 15 mV 2, 3 Vdiff = 40V, Il = 10mA to 100mA -15 15 mV 1, 2 -25 25 mV 3 Vdiff = 3V, Il = 10mA to 500mA -15 15 mV 1 Vdiff = 3.3V, Il = 10mA to 500mA -15 15 mV 2, 3 Vdiff = 3V, Il = 10mA to 500mA -5 5 uA 1 Vdiff = 3.3V, Il = 10mA to 500mA -5 5 uA 2, 3 Vdiff = 40V, Il = 10mA to 100mA -5 5 uA 1, 2, 3 3V < Vdiff < 40V -5 5 uA 1 3.3V < Vdiff < 40V -5 5 uA 2, 3 Ios Short Circuit Current Vdiff = 10V .45 1.6 A 1 Theta R Thermal Regulation TA = 25 C, t = 20mS, Vdiff = 40V, Il = 75mA -6 6 mV 1 Icl Current Limit Vdiff <= 15V 1 0.5 A 1, 2, 3 Vdiff <= 40V 1 0.15 A 1 4 MICROCIRCUIT DATA SHEET MNLM117-E REV 0B1 Electrical Characteristics AC PARAMETERS SYMBOL Rr PARAMETER Ripple Rejection Note 1: Note 2: CONDITIONS NOTES Vin = +6.25V, Vout=Vref, f=120Hz, ei=1Vrms, Il=100mA, Cadj=10uf PINNAME 2 Guaranteed Parameter, Not tested Tested at +25 C; Guaranteed, But not tested at +125 C and -55 C 5 MIN 66 MAX UNIT dB SUBGROUPS 4, 5, 6 MICROCIRCUIT DATA SHEET MNLM117-E REV 0B1 Graphics and Diagrams GRAPHICS# DESCRIPTION 06145HRA2 LCC (E), TYPE C, 20 TERMINAL(B/I CKT) E20ARE LCC (E), TYPE C, 20 TERMINAL(P/P DWG) P000228A LCC (E), TYPE C, 20 TERMINAL (PINOUT) See attached graphics following this page. 6 N MICROCIRCUIT DATA SHEET MNLM117-E REV 0B1 Revision History Rev ECN # 0B1 M0003658 05/02/00 Rel Date Originator Changes Rose Malone Update MDS: MNLM117-E, Rev. 0A0 to MNLM117-E, Rev. 0B1. Added Power Dissipation note and reference to note. Updated Thermal Data - ThetaJA (Still Air) from 90 C/W to 88 C/W and (500LF/Min Air Flow) from 63 C/W to 62 C/W, ThetaJc from 47 C/W to 12.0 C/W. Added Pin Out graphic and Updated B/I ckt in graphics section. 7