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LM117QML-SP

ACTIVE

Radiation-hardened, QML-V, 4.2V to 40V input, 1.5A adjustable-output linear regulator

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Data sheet

LM117QML-SP

ACTIVE
Data sheet Order now

Product details

Rating Space Vin (max) (V) 40 Vin (min) (V) 4.2 Iout (max) (A) 1.5 Output options Adjustable Output, Fixed Output Vout (max) (V) 37 Vout (min) (V) 1.25 Noise (µVrms) 75 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 5 Thermal resistance θJA (°C/W) 39 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 1200 Operating temperature range (°C) -55 to 125 Radiation, SEL (MeV·cm2/mg) Bipolar Radiation, TID (typ) (krad) 100
Rating Space Vin (max) (V) 40 Vin (min) (V) 4.2 Iout (max) (A) 1.5 Output options Adjustable Output, Fixed Output Vout (max) (V) 37 Vout (min) (V) 1.25 Noise (µVrms) 75 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 5 Thermal resistance θJA (°C/W) 39 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 1200 Operating temperature range (°C) -55 to 125 Radiation, SEL (MeV·cm2/mg) Bipolar Radiation, TID (typ) (krad) 100
TO-CAN (NDT) 3 91.6742 mm² (10.03 mm × 9.14 mm) DIESALE (Y) — See data sheet TO-CAN (K) 2 989.0252 mm² (38.938 mm × 25.4 mm) CFP (NAC) 16 62.9285 mm² (— mm × — mm)
  • Radiation hardness assured (RHA) up to a total ionizing dose (TID) of 100 krad(Si)
    • High dose rate (HDR) option at 50-300 rad(Si)/s
    • Low dose rate (LDR) option at 10 mrad(Si)/s
  • Specified 0.5-A or 1.5-A output current options
  • Adjustable output down to 1.2 V
  • Current limit constant with temperature
  • Output is short-circuit protected
  • Radiation hardness assured (RHA) up to a total ionizing dose (TID) of 100 krad(Si)
    • High dose rate (HDR) option at 50-300 rad(Si)/s
    • Low dose rate (LDR) option at 10 mrad(Si)/s
  • Specified 0.5-A or 1.5-A output current options
  • Adjustable output down to 1.2 V
  • Current limit constant with temperature
  • Output is short-circuit protected

The LM117QML-SP 3-terminal positive voltage linear regulator is capable of supplying either 0.5 A or 1.5 A over a 1.2-V to 37-V output range. It is simple to use and requires only two external resistors to set the output voltage.

The regulator is "floating" and sees only the input-to-output differential voltage, thus enabling supplies of several hundred volts to be regulated as long as the maximum input-to-output differential is not exceeded.

The flight-proven LM117QML-SP offers full overload protection such as current limit, thermal overload protection, and safe area protection. It is exceptionally versatile and can also be used as an adjustable switching regulator, a programmable output regulator, a precision current regulator, and more.

For high voltage applications, the LM117HVQML-SP is a pin-to-pin drop-in replacement suitable for up to 60V. For the negative complement of the LM117QML-SP, see the LM137QML-SP.

The LM117QML-SP 3-terminal positive voltage linear regulator is capable of supplying either 0.5 A or 1.5 A over a 1.2-V to 37-V output range. It is simple to use and requires only two external resistors to set the output voltage.

The regulator is "floating" and sees only the input-to-output differential voltage, thus enabling supplies of several hundred volts to be regulated as long as the maximum input-to-output differential is not exceeded.

The flight-proven LM117QML-SP offers full overload protection such as current limit, thermal overload protection, and safe area protection. It is exceptionally versatile and can also be used as an adjustable switching regulator, a programmable output regulator, a precision current regulator, and more.

For high voltage applications, the LM117HVQML-SP is a pin-to-pin drop-in replacement suitable for up to 60V. For the negative complement of the LM117QML-SP, see the LM137QML-SP.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet LM117QML-SP RHA 4.25-V to 41.25-V 3-Terminal Adjustable Regulator datasheet PDF | HTML Apr 27, 2021
* Radiation & reliability report LM117QML-SP 0.5 A Total Ionizing Dose (TID) Apr 12, 2022
* Radiation & reliability report LM117QML-SP Neutron Displacement Damage (NDD) Characterization Dec 9, 2021
* Radiation & reliability report LM117xRLQMLV ELDRS Report Jun 28, 2019
* SMD LM117QML-SP SMD 5962R9951707VZA Jun 21, 2016
Selection guide TI Space Products (Rev. L) Mar 27, 2026
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form (Rev. A) PDF | HTML Nov 5, 2025
Design guide Radiation-Hardened Space Battery Management System (BMS) Reference Design PDF | HTML Jul 30, 2025
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML Jun 17, 2025
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) PDF | HTML Jun 10, 2025
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) Feb 20, 2025
Application note QML flow, its importance, and obtaining lot information (Rev. C) Aug 30, 2023
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML Oct 19, 2022
Application brief Controlling Input Power for Present and Next-Generation Power Controllers PDF | HTML Dec 14, 2020
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer Aug 21, 2020
E-book Radiation Handbook for Electronics (Rev. A) May 21, 2019
Application note Use of an LDO as a Load Switch for Space Applications Aug 1, 2018

Design & development

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TO-CAN (NDT) 3 Ultra Librarian
DIESALE (Y) — Ultra Librarian
TO-CAN (K) 2 Ultra Librarian
CFP (NAC) 16 Ultra Librarian
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