TEXAS INSTRUMENTS LM2937IMP-10/NOPB Fixed LDO Voltage Regulator, 10V Out, 500mA

The TEXAS INSTRUMENTS LM2937IMP-10/NOPB is a high-performance, low-dropout (LDO) positive voltage regulator designed to deliver a stable 10V output with a maximum load current of 500mA. Engineered for reliability and efficiency, it features a PNP power transistor architecture that achieves an exceptionally low dropout voltage—typically just 500mV at full load. This makes it an ideal choice for applications where the input voltage is only slightly higher than the required output, maximising battery life and system efficiency.

A key advantage of this regulator is its remarkably low quiescent current, which is typically only 10mA when the input-to-output differential exceeds 3V with a full 500mA load. This contributes to reduced power consumption and enhanced energy savings in your design. The device incorporates advanced compensation circuitry that significantly relaxes the critical ESR (Equivalent Series Resistance) requirements for the output bypass capacitor, ensuring stability with all ESR values below 3Ω and allowing the use of modern, low-ESR chip capacitors.

Robust Protection Features

Built for demanding environments, the LM2937IMP-10/NOPB includes comprehensive internal protection. It features short-circuit and thermal overload protection to safeguard the device and your circuit under fault conditions. Additionally, it offers reverse battery protection, 60V input transient protection, and mirror image insertion protection, ensuring resilience against common installation errors and voltage spikes. It is also a green product, manufactured without antimony or bromine (no Sb/Br).

Specifications & Applications

With an input voltage range from 0V to 26V and an output voltage trimmed to a 5% tolerance under all operating conditions, this regulator guarantees consistent performance. It is supplied in a compact, surface-mount SOT-223-3 package and operates