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| MILITARY DATA SHEET MNLM117-E REV 0A0 Original Creation Date: 06/27/95 Last Update Date: 09/18/95 Last Major Revision Date: 06/27/95 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 LM117E NS Part Numbers LM117E/883 Prime Die LM117H Processing MIL-STD-883, Method 5004 Subgrp Description 1 2 3 4 5 6 7 8A 8B 9 10 11 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 Quality Conformance Inspection MIL-STD-883, Method 5005 1 MNLM117-E REV 0A0 MILITARY DATA SHEET 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 MNLM117-E REV 0A0 MILITARY DATA SHEET (Absolute Maximum Ratings) (Note 1) Power Dissipation 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) ThetaJC ESD Tolerance (Note 2) 90 C/W 63 C/W 47 C/W 3kV Note 1: 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. Human body model, 1.5K Ohms in series with 100pF. Note 2: Recommended Operating Conditions Operating Temperature Range -55 C < TA < +125 C 3 MNLM117-E REV 0A0 MILITARY DATA SHEET 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 PARAMETER Adjustment Pin Current Vdiff = 3V Vdiff = 3.3V Vdiff = 40V Iq Minimum Load Current Vdiff = 3V, Vout = 1.7V Vdiff = 3.3V, Vout = 1.7V Vdiff = 40V, Vout = 1.7V Vref Reference Voltage Vdiff = 3V Vdiff = 3.3V Vdiff = 40V Vrline Line Regulation 3V <= Vdiff <= 40V, Vout = 1.2V 3.3V <= Vdiff <= 40V, Vout = 1.2V Vrload Load Regulation Vdiff = 3V, Il = 10mA to 100mA Vdiff = 3.3V, Il = 10mA to 100mA Vdiff = 40V, Il = 10mA to 100mA 1.2 1.2 1.2 -8.9 -22.2 -15 -15 -15 -25 Vdiff = 3V, Il = 10mA to 500mA Vdiff = 3.3V, Il = 10mA to 500mA Delta Iadj Adjustment Current Change Vdiff = 3V, Il = 10mA to 500mA Vdiff = 3.3V, Il = 10mA to 500mA Vdiff = 40V, Il = 10mA to 100mA 3V < Vdiff < 40V 3.3V < Vdiff < 40V Ios Theta R Icl Short Circuit Current Thermal Regulation Current Limit Vdiff = 10V TA = 25 C, t = 20mS, Vdiff = 40V, Il = 75mA Vdiff <= 15V Vdiff <= 40V 1 1 -15 -15 -5 -5 -5 -5 -5 .45 -6 0.5 0.15 CONDITIONS NOTES PINNAME MIN MAX 100 100 100 5 5 5 1.3 1.3 1.3 8.9 22.2 15 15 15 25 15 15 5 5 5 5 5 1.6 6 UNIT uA uA uA mA mA mA V V V mV mV mV mV mV mV mV mV uA uA uA uA uA A mV A A SUBGROUPS 1 2, 3 1, 2, 3 1 2, 3 1, 2, 3 1 2, 3 1, 2, 3 1 2, 3 1 2, 3 1, 2 3 1 2, 3 1 2, 3 1, 2, 3 1 2, 3 1 1 1, 2, 3 1 4 MNLM117-E REV 0A0 MILITARY DATA SHEET Electrical Characteristics AC PARAMETERS SYMBOL Rr PARAMETER Ripple Rejection CONDITIONS Vin = +6.25V, Vout=Vref, f=120Hz, ei=1Vrms, Il=100mA, Cadj=10uf NOTES 2 PINNAME MIN 66 MAX UNIT dB SUBGROUPS 4, 5, 6 Graphics and Diagrams GRAPHICS# 6145HRA1 E20ARE DESCRIPTION LDLESS CHIP CARRIER,TYPE C,20 TERMINAL(B/I CKT) LDLESS CHIP CARRIER, TYPE C 20 TERMINAL(P/P DWG) See attached graphics following this page. 5 |
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