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Details for LM2990T-12 by Texas Instruments
Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators
IC V REG LDO -12V 2990 TO-220-3
LM2990T-12 image

LM2990T-12 by Texas Instruments

IC V REG LDO -12V 2990 TO-220-3
Features
5% Output Accuracy over Entire Operating Range
Dropout Voltage Typically 0.6 V at 1-A Load
Fixed Output Voltages: u22125 V, u22125.2 V, u221212 V, and u221215 V
Functional Complement to the LM2940 Series
Input Voltage: u201326 V to u20136 V
Internal Short-Circuit Current Limit
Internal Thermal Shutdown with Hysteresis
Low Quiescent Current
Output Current in Excess of 1 A
Part Information
LM2990T-12 image
RoHS Compliant
Description
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.
Specifications
Output Type:
Fixed
Input Voltage Min:
-26V
Input Voltage Max:
300mV
Fixed Output Voltage Nom.:
-12V
Adjustable Output Voltage Min:
-
Adjustable Output Voltage Max:
-
Output Current:
1A
Dropout Voltage Vdo:
600mV
LDO Regulator Case Style:
TO-220
No. of Pins:
3Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Product Range:
-12V 1A LDO Voltage Regulators
Automotive Qualification Standard:
-
MSL:
-
SVHC:
No SVHC (27-Jun-2018)
Accuracy %:
5%
Base Number:
2990
IC Generic Number:
2990
No. of Outputs:
1Outputs
Operating Temperature Range:
-40°C to +125°C
Operating Voltage Tolerance +:
5%
Output Current Max:
1A
Output Voltage Nom.:
-12V
Primary Input Voltage:
-17V
Supply Voltage Max:
-26V
Supply Voltage Min:
-1V
Voltage Regulator Type:
Negative Fixed LDO
Alternate Descriptions
LDO Regulator Neg -12V 1.8A 3-Pin(3+Tab) TO-220 Rail Avnet Europe