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National Semiconductor LM2937 500 mA Low Dropout Regulator Datasheet
The LM2937 is a positive‑voltage regulator capable of delivering up to 500 mA with a low dropout voltage. It uses a PNP power transistor and includes built‑in short‑circuit, thermal overload and reverse‑battery protection, making it suitable for automotive and other demanding applications.
The document provides absolute maximum ratings, electrical characteristics, typical performance curves, package dimensions and detailed application hints such as external capacitor requirements and heatsinking guidelines.
National Semiconductor LM2937 specifications
| Typical Dropout Voltage | 0.5 V at full load |
|---|---|
| Maximum Input Voltage | 60 V |
| Operating Temperature Range | -40 °C to +125 °C |
| Output Capacitor ESR Limit | ≤ 3 Ω |
Source: National Semiconductor LM2937 500 mA Low Dropout Regulator Datasheet
All National Semiconductor LM2937 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What dropout voltage can be expected at full load?
Typical dropout voltage is 0.5 V when delivering the full 500 mA.
From: National Semiconductor LM2937 500 mA Low Dropout Regulator Datasheet
What protection features are built into the LM2937?
It includes internal short‑circuit, thermal overload, reverse‑battery and input transient protection.
From: National Semiconductor LM2937 500 mA Low Dropout Regulator Datasheet
What is the typical dropout voltage at full load?
Typical dropout voltage is 0.5 V when delivering the full 500 mA load.
From: National Semiconductor LM2937 Low Dropout Regulator Datasheet