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Series Information for LM2990T-5.0 - Texas Instruments


  • feature
    5% Output Accuracy over Entire Operating Range
  • feature
    Dropout Voltage Typically 0.6 V at 1-A Load
  • feature
    Fixed Output Voltages: u22125 V, u22125.2 V, u221212 V, and u221215 V
  • feature
    Functional Complement to the LM2940 Series
  • feature
    Input Voltage: u201326 V to u20136 V
  • feature
    Internal Short-Circuit Current Limit
  • feature
    Internal Thermal Shutdown with Hysteresis
  • feature
    Low Quiescent Current
  • feature
    Output Current in Excess of 1 A


IC V REG LDO -5.0V 2990 TO-220-3
The LM2990 is a three-terminal, low-dropout, 1-A negative voltage regulator available with fixed output voltages of −5 V, −5.2 V, −12 V, and −15 V. The LM2990 uses circuit design techniques to provide low-dropout and low-quiescent current. The dropout voltage at 1-A load current is typically 0.6 V and an ensured worst-case maximum of 1 V over the entire operating temperature range. The quiescent current is typically 1 mA with 1-A load current and an input-output voltage differential greater than 3 V. A unique circuit design of the internal bias supply limits the quiescent current to only 9 mA (typical) when the regulator is in the dropout mode (VOUT − VIN ≤ 3 V). Output voltage accuracy is ensured to ±5% over load and temperature extremes. The LM2990 also implements short-circuit proof, and thermal shutdown includes hysteresis to enhance the reliability of the device when overloaded for an extended period of time. All these features make the LM2990 an ideal negative power supply suited for dual supply systems. The device may also be used as fixed or adjustable current sink load. The LM2990 is available in two 3-pin packages and is rated for operation over the junction temperature range of −40°C to 125°C.


Output Type:
Input Voltage Min:
Input Voltage Max:
Fixed Output Voltage Nom.:
Adjustable Output Voltage Min:
Adjustable Output Voltage Max:
Output Current:
Dropout Voltage Vdo:
LDO Regulator Case Style:
No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
-5V 1A LDO Voltage Regulators
Automotive Qualification Standard:
No SVHC (27-Jun-2018)
Accuracy %:
Base Number:
Device Marking:
IC Generic Number:
No. of Outputs:
Operating Temperature Range:
-40°C to +125°C
Operating Voltage Tolerance +:
Output Current Max:
Output Voltage Nom.:
Primary Input Voltage:
Supply Voltage Max:
Supply Voltage Min:
Voltage Regulator Type:
Negative Fixed LDO

Alternate Descriptions

Avnet America

LDO Regulator Neg -5V 1.8A 3-Pin(3+Tab) TO-220 Rail

Avnet America product

Avnet Europe

LDO Regulator Neg -5V 1.8A 3-Pin(3+Tab) TO-220 Rail

Avnet Europe product