LM120QML

ACTIVE

Military Grade 1A Fixed Output Negative Voltage Regulator / LDO

Product details

Output options Fixed Output Iout (max) (A) 1.5 Vin (max) (V) -7 Vin (min) (V) -25 Vout (max) (V) -5 Vout (min) (V) -15 Fixed output options (V) -15, -12, -5 Noise (µVrms) 150 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 35 Rating Military Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 2 PSRR at 100 KHz (dB) 23 Dropout voltage (Vdo) (typ) (mV) 3000 Operating temperature range (°C) -55 to 150
Output options Fixed Output Iout (max) (A) 1.5 Vin (max) (V) -7 Vin (min) (V) -25 Vout (max) (V) -5 Vout (min) (V) -15 Fixed output options (V) -15, -12, -5 Noise (µVrms) 150 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 35 Rating Military Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 2 PSRR at 100 KHz (dB) 23 Dropout voltage (Vdo) (typ) (mV) 3000 Operating temperature range (°C) -55 to 150
DIESALE (Y) See data sheet TO-CAN (K) 2 989.0252 mm² 38.938 x 25.4 TO-CAN (NDT) 3 91.6742 mm² 10.03 x 9.14
  • Preset Output Voltage Error Less Than ±3%
  • Preset Current Limit
  • Internal Thermal Shutdown
  • Operates with Input-Output Voltage Differential Down to 1V
  • Excellent Ripple Rejection
  • Low Temperature Drift
  • Easily Adjustable to Higher Output Voltage

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  • Preset Output Voltage Error Less Than ±3%
  • Preset Current Limit
  • Internal Thermal Shutdown
  • Operates with Input-Output Voltage Differential Down to 1V
  • Excellent Ripple Rejection
  • Low Temperature Drift
  • Easily Adjustable to Higher Output Voltage

All trademarks are the property of their respective owners.

The LM120 series are three-terminal negative regulators with a fixed output voltage of −5V, −12V, and −15V, and up to 1.5A load current capability. Where other voltages are required, the LM137 and LM137HV series provide an output voltage range of −1.2V to −47V.

The LM120 needs only one external component—a compensation capacitor at the output, making them easy to apply. Worst case specifies on output voltage deviation due to any combination of line, load or temperature variation assure satisfactory system operation.

Exceptional effort has been made to make the LM120 Series immune to overload conditions. The regulators have current limiting which is independent of temperature, combined with thermal overload protection. Internal current limiting protects against momentary faults while thermal shutdown prevents junction temperatures from exceeding safe limits during prolonged overloads.

Although primarily intended for fixed output voltage applications, the LM120 Series may be programmed for higher output voltages with a simple resistive divider. The low quiescent drain current of the devices allows this technique to be used with good regulation.

The LM120 series are three-terminal negative regulators with a fixed output voltage of −5V, −12V, and −15V, and up to 1.5A load current capability. Where other voltages are required, the LM137 and LM137HV series provide an output voltage range of −1.2V to −47V.

The LM120 needs only one external component—a compensation capacitor at the output, making them easy to apply. Worst case specifies on output voltage deviation due to any combination of line, load or temperature variation assure satisfactory system operation.

Exceptional effort has been made to make the LM120 Series immune to overload conditions. The regulators have current limiting which is independent of temperature, combined with thermal overload protection. Internal current limiting protects against momentary faults while thermal shutdown prevents junction temperatures from exceeding safe limits during prolonged overloads.

Although primarily intended for fixed output voltage applications, the LM120 Series may be programmed for higher output voltages with a simple resistive divider. The low quiescent drain current of the devices allows this technique to be used with good regulation.

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Technical documentation

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Type Title Date
* Data sheet LM120QML Series 3-Terminal Negative Regulators datasheet (Rev. A) 22 Apr 2013
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
Application note AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) 06 May 2013
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 06 May 2013
Application note Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) 05 May 2013
More literature Die D/S LM120KG-5 MD8 Series 3-Terminal Negative Regulators 14 Sep 2012
More literature Die D/S LM120KG-12 MW8 Series 3-Terminal Negative Regulators 13 Sep 2012
More literature Die D/S LM120KG-15 MW8 Series 3-Terminal Negative Regulators 13 Sep 2012
Application note Packaging Limits Range of Linear Regulators 08 May 2010
Application note Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) 04 Jun 2008
Application note Understanding the Terms and Definitions of LDO Voltage Regulators 21 Oct 1999

Design & development

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DIESALE (Y)
TO-CAN (K) 2 View options
TO-CAN (NDT) 3 View options

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