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TI LM2937IMPX-12/NOPB product image
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TI LM2937IMPX-12/NOPBRoHS

Manufacturer
MPN
LM2937IMPX-12/NOPB
LCSC Part #
C2865816
Packaging
SOT-223-4
Customer #
Key Attributes
500mA, 26V, high PSRR, low dropout regulator
Datasheetpdf iconTI LM2937IMPX-12/NOPB
In-Stock: 53
53 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 1.5667$ 1.57
10+$ 1.2882$ 12.88
30+$ 1.1351$ 34.05
100+$ 0.9625$ 96.25
500+$ 0.886$ 443.00
1,000+$ 0.8518$ 851.80
Standard Packaging2000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
ManufacturerTI
PackagingSOT-223-4
Output Voltage12V
Number of Outputs1
Operating Temperature-40℃~+85℃@(Ta)
Supply Current (Iq)20mA
Output ConfigurationPositive
Operating Voltage26V
Output Current500mA
Output TypeFixed
FeaturesShort Circuit Protection;Thermal shutdown;Reverse polarity voltage protection;Input overvoltage protection

Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2000
Sales UnitPiece

Introduction

AI Translation

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 2 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.

Features

AI Translation
  • Fully Specified for Operation Over -40°C to 125°C
  • Output Current in Excess of 500 mA
  • Output Trimmed for 5% Tolerance Under all Operating Conditions
  • Typical Dropout Voltage of 0.5 V at Full Rated Load Current
  • Wide Output Capacitor ESR Range, up to 3 Ω
  • Internal Short Circuit and Thermal Overload Protection
  • Reverse Battery Protection
  • 60-V Input Transient Protection
  • Mirror Image Insertion Protection

Applications

AI Translation
  • Automotive
  • Industrial Control
  • Point-of-Load regulation