LM2937ESX-5.0/NOPB Part Information
Details for LM2937ESX-5.0/NOPB by Texas Instruments
Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators
Part 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.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part 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 Specifications
| Output Type | Fixed |
| Input Voltage Min | 0V |
| Input Voltage Max | 26V |
| Fixed Output Voltage Nom. | 5V |
| Adjustable Output Voltage Min | - |
| Adjustable Output Voltage Max | - |
| Output Current | 500mA |
| Dropout Voltage Vdo | 500mV |
| LDO Regulator Case Style | TO-263 |
| No. of Pins | 3Pins |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Product Range | 5V 500mA LDO Voltage Regulators |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 3 - 168 hours |
| SVHC | No SVHC (27-Jun-2018) |
| Output Voltage Nom. | 5V |
Alternative Part Descriptions
- LM2937ESX-5.0/NOPB, LDORegulatorPos | RS Components
- LDO, FIXED, 5V, 0.5A, -40 TO 125DEG C ROHS COMPLIANT: YES | Newark Electronics
- 500-mA, 26-V, high-PSRR, low-dropout voltage regulator | Texas Instruments
- LDO Voltage Regulator [Texas Instruments] LM2937ESX-5.0/NOPB LDO Voltage Regulator | Distrelec
- Texas Instruments LM2937ESX-5.0/NOPB, LDO Voltage Regulator, 0.5A, 5 V, 5% 3-Pin, D2PAK | RS Components TR
- LM2937ESX-5.0/NOPB, LDORegulatorPos | RS Components IT