text.skipToContent text.skipToNavigation

LM2937ESX-8.0/NOPB ACTIVE

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

NEW - Custom reel may be available
Inventory: 252,496  
 

Quality information

RoHS Exempt
REACH Affected
Lead finish / Ball material SN
MSL rating / Peak reflow Level-3-245C-168 HR
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
View or download

Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (℃)
TO-263 (KTT) | 3 500 | LARGE T&R
Custom reel may be available
-40 to 125
Package | Pins TO-263 (KTT) | 3
Package qty | Carrier: 500 | LARGE T&R
Custom reel may be available
Operating temperature range (℃) -40 to 125
View TI packaging information

Features for the LM2937

  • 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 for the LM2937

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.

Pricing


Qty Price (USD)
1-99 1.525
100-249 1.26
250-999 0.905
1,000+ 0.681

Additional package qty | carrier options

Package qty | Carrier 45 | TUBE
Inventory 625
Qty | Price (USD) 1ku | 0.681 1-99 1.525 100-249 1.26 250-999 0.905 1,000+ 0.681