Texas Instruments LM2937ET-3.3/NOPB
- Part Number:
- LM2937ET-3.3/NOPB
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3300058-LM2937ET-3.3/NOPB
- Description:
- 500-mA, 26-V, high-PSRR, low-dropout voltage regulator
- Datasheet:
- lm2937
- Output optionsFixed Output
- Iout (max) (A)0.5
- Vin (max) (V)26
- Vin (min) (V)6
- Vout (max) (V)15
- Vout (min) (V)5
- Fixed output options (V)5
- Noise (μVrms)150
- Iq (typ) (mA)2
- Thermal resistance θJA (°C/W)42
- RatingCatalog
- Load capacitance (min) (μF)10
- Regulated outputs (#)1
- Accuracy (%)5
- PSRR at 100 KHz (dB)57
- Dropout voltage (Vdo) (typ) (mV)500
- Operating temperature range (°C)-40 to 125
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 60-V/−50-V load dump transients. Familiar regulator features such as short circuit and thermal shutdown protection are also built in.
LDO Regulator Pos 3.3V 0.5A Automotive 3-Pin(3 Tab) TO-220 Tube
TEXAS INSTRUMENTS LM2937ET-3.3/NOPB / IC REGULATOR LDO TO-220
REGULATOR, LDO, 500MA, TO-220 PKG
LM2937 Tube Through Hole Over Temperature Reverse Polarity Short Circuit voltage regulator linear 500mV 4.7mm 500mA -40C~125C
IC, LDO REGULATOR, 3.3V, 0.5A, TO-220-3;; IC, LDO REGULATOR, 3.3V, 0.5A, TO-220-3; Primary Input Voltage:8.3V; Output Voltage Fixed:3.3V; Dropout Voltage Vdo:500mV; No. of Pins:3; No. of Outputs:1; Output Current:500mA; Operating Temperature Range:-40°C to 125°C
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