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Details for LM2937ET-12 by Texas Instruments
Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators
IC V REG LDO +12V 2937 TO-220-3
LM2937ET-12 image

LM2937ET-12 by Texas Instruments

IC V REG LDO +12V 2937 TO-220-3
Features
60-V Input Transient Protection
Fully Specified for Operation Over u221240u00b0C to 125u00b0C
Internal Short Circuit and Thermal Overload Protection
Mirror Image Insertion Protection
Output Current in Excess of 500 mA
Output Trimmed for 5% Tolerance Under all Operating Conditions
Reverse Battery Protection
Typical Dropout Voltage of 0.5 V at Full Rated Load Current
Wide Output Capacitor ESR Range, up to 3 u03a9
Part Information
LM2937ET-12 image
RoHS Compliant
Description
The LM2937 is a positive voltage regulator capable of supplying up to 500 mA of load current. The use of a PNP power transistor provides a low dropout voltage characteristic. With a load current of 500 mA the minimum input to output voltage differential required for the output to remain in regulation is typically 0.5 V (1-V ensured maximum over the full operating temperature range). Special circuitry has been incorporated to minimize the quiescent current to typically only 10 mA with a full 500-mA load current when the input to output voltage differential is greater than 3 V. The LM2937 requires an output bypass capacitor for stability. As with most low dropout regulators, the ESR of this capacitor remains a critical design parameter, but the LM2937 includes special compensation circuitry that relaxes ESR requirements. The device is stable for all ESR below 3 Ω. This allows the use of low ESR chip capacitors. Ideally suited for automotive applications, the LM2937 will protect itself and any load circuitry from reverse battery connections, two-battery jumps, and up to 60V/−50-V load dump transients. Familiar regulator features such as short circuit and thermal shutdown protection are also built in.
Specifications
Output Type:
Fixed
Input Voltage Min:
0V
Input Voltage Max:
26V
Fixed Output Voltage Nom.:
12V
Adjustable Output Voltage Min:
-
Adjustable Output Voltage Max:
-
Output Current:
500mA
Dropout Voltage Vdo:
500mV
LDO Regulator Case Style:
TO-220
No. of Pins:
3Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Product Range:
12V 500mA LDO Voltage Regulators
Automotive Qualification Standard:
-
MSL:
-
SVHC:
No SVHC (27-Jun-2018)
Accuracy %:
5%
Base Number:
2937
IC Generic Number:
2937
No. of Outputs:
1Outputs
Operating Temperature Range:
-40°C to +125°C
Operating Voltage Tolerance +:
5%
Output Current Max:
0.5A
Output Voltage Nom.:
12V
Primary Input Voltage:
17V
Supply Voltage Max:
26V
Supply Voltage Min:
14V
Voltage Regulator Type:
Positive Fixed LDO