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Details for LM2937ESX-3.3/NOPB by Texas Instruments
Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators
LM2937ESX-3.3/NOPB
Buy Directly from Texas Instruments (7757 in stock) $0.6800
LDO FIXED 3.3V 0.5A TO-263-3
LM2937ESX-3.3/NOPB image

LM2937ESX-3.3/NOPB by Texas Instruments

LDO FIXED 3.3V 0.5A TO-263-3
Features
60-V Input Transient Protection
Fully Specified for Operation Over u221240u00b0C to 125u00b0C
Internal Short Circuit and Thermal Overload Protection
Operating Input Voltage Range : 4.75 V to 26 V
Output Current in Excess of 500 mA (400 mA for SOT-223 package)
Output Trimmed for 5% Tolerance Under All Operating Conditions
Reverse Battery Input Protection
Wide Output Capacitor ESR Range, 0.01 u03a9 up to 5 u03a9
Part Information
LM2937ESX-3.3/NOPB image
RoHS Compliant
Description
The LM2937-2.5 and LM2937-3.3 are positive voltage regulators capable of supplying up to 500 mA of load current. Both regulators are ideal for converting a common 5-V logic supply, or higher input supply voltage, to the lower 2.5-V and 3.3-V supplies to power very-large-scale integrations (VLSI) ASICs and microcontrollers. 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 5 V. The LM2937 requires an output bypass capacitor for stability. As with most regulators utilizing a PNP pass transistor, the ESR of this capacitor remains a critical design parameter, but the LM2937-2.5 and LM29373.3 include special compensation circuitry that relaxes ESR requirements. The LM2937 is stable for all ESR ratings less than 5 Ω. This allows the use of low ESR chip capacitors. The regulators are also suited for automotive applications, with built in protection 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.
Specifications
Output Type:
Fixed
Input Voltage Min:
26V
Input Voltage Max:
4.75V
Fixed Output Voltage Nom.:
3.3V
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:
3.3V 500mA LDO Voltage Regulators
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
LDO, FIXED, 3.3V, 0.5A, TO-263-3; Output Type:Fixed; Input Voltage Min:26V; Input Voltage Max:4.75V; Fixed Output Voltage Nom.:3.3V; Adjustable Output Voltage Min:-; Adjustable Output Voltage Max:-; Output Current:500mA; Dropout RoHS Compliant: Yes Newark Electronics
LDO Regulator Pos 3.3V 0.5A 4-Pin(3+Tab) TO-263 T/R Avnet America
LDO Regulator Pos 3.3V 0.5A 4-Pin(3+Tab) TO-263 T/R Avnet Europe
500-mA, 26-V, high-PSRR, low-dropout voltage regulator Texas Instruments