Original Creation Date: 10/19/99
Last Update Date: 07/19/00
Last Major Revision Date: 07/05/00
MRLM117-K-RH REV 2A0 MICROCIRCUIT DATA SHEET
POSITIVE THREE TERMINAL ADJUSTABLE VOLTAGE REGULATOR
GUARANTEED TO 100K RAD(Si) TESTED TO MIL-STD-883,
METHOD 1019.5, CONDITION A
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 the negative complement, see LM137 data sheet.
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MICROCIRCUIT DATA SHEET
MRLM117-K-RH REV 2A0
NS Part Numbers
LM117KRQML
LM117KRQMLV
Industry Part Number
LM117K
Prime Die
LM117K
Controlling Document
SEE FEATURES SECTION
Processing
MIL-STD-883, Method 5004
Quality Conformance Inspection
MIL-STD-883, Method 5005
Subgrp Description Temp ( C)
o
1 Static tests at +25
2 Static tests at +125
3 Static tests at -55
4 Dynamic tests at +25
5 Dynamic tests at +125
6 Dynamic tests at -55
7 Functional tests at +25
8A Functional tests at +125
8B Functional tests at -55
9 Switching tests at +25
10 Switching tests at +125
11 Switching tests at -55
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MICROCIRCUIT DATA SHEET
MRLM117-K-RH REV 2A0
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
- CONTROLLING DOCUMENT:
LM117KRQML 5962R9951704QYA
LM117KRQMLV 5962R9951704VYA
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MICROCIRCUIT DATA SHEET
MRLM117-K-RH REV 2A0
(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 < Ta < +150 C
Lead Temperature (Soldering, 10 seconds) 300 C
Thermal Resistance
ThetaJA 39 C/W (Still Air) 14 C/W (500LF/Min Air flow)
1.9 C/WThetaJC
ESD Tolerance
(Note 3) 3000V
Note 1: 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.
Note 2: 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.
Note 3: Human body model, 1.5K Ohms in series with 100pF.
Recommended Operating Conditions
Operating Temperature Range -55 C < Ta < +125 C
Input Voltage Range 4.25V to 41.25V
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MRLM117-K-RH REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
DC PARAMETERS: (SEE NOTE 4)
SYMBOL PARAMETER CONDITIONS NOTES PIN-
NAME MIN MAX UNIT SUB-
GROUPS
Vout Output Voltage Vin = 4.25V, Il = -5mA 1.2 1.3 V 1, 2,
3
Vin = 4.25V, Il = -1.5A 1.2 1.3 V 1, 2,
3
Vin = 41.25V, Il = -5mA 1.2 1.3 V 1, 2,
3
Vin = 41.25V, Il = -200mA 1.2 1.3 V 1, 2,
3
Vrline Line Regulation 4.25V < Vin < 41.25V, Il = -5mA -9 9 mV 1
-23 23 mV 2, 3
Vrload Load Regulation Vin = 6.25V, -1.5A < Il < -5mA -3.5 3.5 mV 1
-12 12 mV 2, 3
Vin = 41.25V, -200mA < Il < -5mA -3.5 3.5 mV 1
-12 12 mV 2, 3
Vrth Thermal
Regulation Vin = 14.6V, Il = -1.5A -12 12 mV 1
Iadj Adjust Pin
Current Vin = 4.25V, Il = -5mA -100 -15 uA 1, 2,
3
Vin = 41.25V, Il = -5mA -100 -15 uA 1, 2,
3
Delta
Iadj/Line Adjust Pin
Current Change 4.25V < Vin < 41.25V, Il = -5mA -5 5 uA 1, 2,
3
Delta
Iadj/Load Adjust Pin
Current Change Vin = 6.25V, -1.5A < Il < -5mA -5 5 uA 1, 2,
3
Ios Output Short
Circuit Current Vin = 4.25V -3.5 -1.5 A 1, 2,
3
Vin = 40V -1 -0.18 A 1, 2,
3
Vout
(Recov) Output Voltage
Recovery Vin = 4.25V, Rl = 0.833 Ohms,
Cl = 20uF 1.2 1.3 V 1, 2,
3
Vin = 40V, Rl = 250 Ohms 1.2 1.3 V 1, 2,
3
Iq Minimum Load
Current Vin = 4.25V, Forced Vout = 1.4V -3 -0.2 mA 1, 2,
3
Vin = 14.25V, Forced Vout = 1.4V -3 -0.2 mA 1, 2,
3
Vin = 41.25V, Forced Vout = 1.4V -5 -0.2 mA 1, 2,
3
Vstart Voltage Start-Up Vin = 4.25V, Rl = 0.833 Ohms, Cl=20uF,
Il = -1.5A 1.2 1.3 V 1, 2,
3
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MRLM117-K-RH REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
DC PARAMETERS: (SEE NOTE 4) (Continued)
SYMBOL PARAMETER CONDITIONS NOTES PIN-
NAME MIN MAX UNIT SUB-
GROUPS
Vout Output Voltage Vin = 6.25V, Il = -5mA 1 1.2 1.3 V 2
AC PARAMETERS: (SEE NOTE 4)
Vno Output Noise
Voltage Vin = 6.25V, Il = -100mA 120 uVrms 7
DeltaVout/
DeltaVin Line Transient
Response Vin = 6.25V, Delta Vin = 3V,
Il = -10mA 218mV7
DeltaVout/
Delta Il Load Transient
Response Vin = 6.25V, Delta Il = -400mA,
Il = -100mA 3 120 mV 7
Delta
Vin/Delta
Vout
Ripple Rejection Vin = 6.25V, ei = 1Vrms at f = 2400Hz,
Il = -500mA 65 dB 4
DC PARAMETERS: DRIFT VALUES
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: "Delta calculations performed on QMLV devices at group B, subgroup 5 ONLY".
Vout Output Voltage Vin = 4.25V, Il = -5mA -0.01 0.01 V 1
Vin = 4.25V, Il = -1.5A -0.01 0.01 V 1
Vin = 41.25V, Il = -5mA -0.01 0.01 V 1
Vin = 41.25V, Il = -200mA -0.01 0.01 V 1
Vrline Line Regulation 4.25V < Vin < 41.25V, Il = -5mA -4 4 mV 1
Iadj Adjust Pin
Current Vin = 4.25V, Il = -5mA -10 10 uA 1
Vin = 41.25V, Il = -5mA -10 10 uA 1
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MRLM117-K-RH REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
AC/DC PARAMETERS: POST RADIATION LIMITS +25C (SEE NOTE 4)
SYMBOL PARAMETER CONDITIONS NOTES PIN-
NAME MIN MAX UNIT SUB-
GROUPS
Vout Output Voltage Vin = 4.25V, Il = -5mA 1.2 1.325 V 1
Vin = 4.25V, Il = -1.5A 1.2 1.325 V 1
Vin = 41.25V, Il = -5mA 1.2 1.325 V 1
Vin = 41.25V, Il = -200mA 1.2 1.325 V 1
Vrline Line Regulation 4.25V < Vin < 41.25V, Il = -5mA -25 25 mV 1
Vrload Load Regulation Vin = 6.25V, -1.5A < Il < -5mA -7.0 7.0 mV 1
Vin = 41.25V, -200mA < Il < -5mA -7.0 7.0 mV 1
Delta
Vin/Delta
Vout
Ripple Rejection Vin = 6.25V, ei = 1Vrms at f = 2400Hz,
Il = -500mA 60 dB 4
Vout
(Recov) Output Voltage
Recovery Vin = 4.25V, Rl = 0.833 Ohms, Cl =
20uS 1.20 1.325 V 1
Vin = 40V, Rl = 250 Ohms 1.20 1.325 V 1
Note 1: Tested at TA = +125 C, correlated to TA = +150 C.
Note 2: S/S limit of 6mV/V is equivalent to 18mV.
Note 3: S/S limit of .3mV/V is equivalent to 120mV.
Note 4: Pre and post irradiation limits are identical to those listed under AC and DC
electrical characteristics except as listed in the Post Radiation Limits Table. These
parts may be dose rate sensitive in a space environment and demonstrate enhanced low
dose rate effect. Radiaton end point limits for the noted parameters are guaranteed
only for the conditions as specified in MIL-STD-883, Method 1019.5, Condition A.
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MICROCIRCUIT DATA SHEET
MRLM117-K-RH REV 2A0
Graphics and Diagrams
GRAPHICS# DESCRIPTION
09757HRE4 METAL CAN (KA), TO-3, 2LD, LOW PROFILE (B/I CKT)
K02CRE METAL CAN (KA), TO-3, 2LD, LOW PROFILE (P/P DWG)
P000173A METAL CAN (KA), TO-3, 2LD, LOW PROFILE (PINOUT)
See attached graphics following this page.
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MICROCIRCUIT DATA SHEET
MRLM117-K-RH REV 2A0
Revision History
Rev ECN # Rel Date Originator Changes
0A0 M0003588 05/02/00 Rose Malone Initial MDS Release: MRLM117-K-RH, Rev. 0A0
1A0 M0003663 07/19/00 Rose Malone Updated MRLM117-K-RH, Rev. 0A0 to MRLM117-K-RH, Rev.
1A0. Typo in Post Radiation Section, changed Vout
limit from Vin = 4.25V, Il = -1.5mA to Vin = 4.25V, Il
= -1.5A.
2A0 M0003733 07/19/00 Rose Malone Update MDS: MRLM117-K-RH, Rev. 1A0 to MRLM117-K-RH,
Rev. 2A0. Changes made in Absolute and Recommended
Section, Post Radiaton Section, Vrline Parameter from
-18mV Min, 18mV Max to -25mV Min, 25mV Max, Vrload
Parameter from -5.5mV Min, 5.5mV Max to -7.0mV Min,
7.0mV Max, Delta Vin/Delta Vout Parameter from 63dB to
60dB. Added Vout (Recov) parameter in Post Radiaton
Section.
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