Fixed LDO Voltage Regulator, 5V, 100mA, TO-92

The TEXAS INSTRUMENTS LM2931Z-5.0/NOPB is a highly efficient 5V fixed-output, low-dropout (LDO) linear voltage regulator. Engineered for minimal power wastage, it features an extremely low quiescent current of 1mA or less when driving 10mA loads. This, combined with its very low required input-output differential voltage, makes it the perfect choice for battery-powered and standby power systems where energy conservation is paramount.

This robust regulator is designed to deliver a stable 5V supply with a maximum output current of 100mA. Its low dropout voltage of just 300mV (typical) maximises usable battery life, allowing regulation to continue even as input voltage nears the output level. The device incorporates comprehensive protection features, safeguarding both itself and your connected circuitry from a wide range of fault conditions.

Key Protection Features

• Reverse Battery Protection: The regulator is fully protected against damage from reverse battery installation or two-battery jump-start scenarios.
• Load Dump Protection: It can automatically shut down during input voltage transients, such as load dumps, where the input may momentarily exceed the maximum rating, protecting the internal circuits and the load.
• Mirror-Image Insertion Safety: The device cannot be harmed by temporary reverse insertion.
• Standard Protections: It also includes familiar and essential short-circuit and thermal overload protection.

Applications & Compliance

Ideal for a variety of low-power applications, this LDO is commonly used in memory standby circuits, power supplies for CMOS and other low-power processors, and any system requiring up to 100mA of regulated 5V power. It is a green product, manufactured without antimony or brominated flame retardants (no Sb/Br), and is well-suited for automotive and general power management tasks. The device operates reliably across a wide