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LM2937IMP-8.0/NOPB ACTIVE

500-mA, 26-V, high-PSRR, low-dropout voltage regulator

Inventory: 17,956
 
Custom reel may be available

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  |   View additional information for LM2937

Packaging information

Package | Pins SOT-223 (DCY) | 4
Operating temperature range (°C) I (-40 to 85)
Package qty | Carrier: 1,000 | LARGE T&R
Custom reel may be available
View more packaging information

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Features

  • 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

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 60-V/−50-V load dump transients. Familiar regulator features such as short circuit and thermal shutdown protection are also built in.

Qty Price
1-99 $1.34
100-249 $1.11
250-999 $0.80
1,000+ $0.60

Alternative carriers

Part number LM2937IMPX-8.0/NOPB
Package qty | Carrier 2,000 | LARGE T&R
Custom reel may be available
Inventory 3,594
Qty | Price (USD) 1ku | $0.60