Texas Instruments LP2950 Fixed LDO Voltage Regulator, 5V 100mA, TO-92

The Texas Instruments LP2950-50LPRE3 is a precision, bipolar low dropout (LDO) voltage regulator designed for demanding applications where stable and accurate power is critical. With a wide input voltage range of up to 30V, it can accommodate significant supply fluctuations while delivering a tightly regulated 5V output.

This device excels in minimising all error contributions. It features an impressive output tolerance of 0.5% at 25°C and an extremely low output voltage temperature coefficient of typically 20ppm. Combined with excellent line regulation (0.03% typ.) and load regulation (0.04% typ.), it ensures a consistent output voltage under varying input and load conditions. Its remote sensing capability further enhances accuracy in complex circuit layouts, allowing it to function as either a robust 100mA regulator or a low-power voltage reference.

Key Features & Specifications

• Low Dropout: Requires only 380mV (typical) of headroom at the full 100mA output current, maximising efficiency and battery life in low-voltage applications.
• Low Quiescent Current: Consumes a mere 75µA (typical), minimising power drain when in standby or lightly loaded.
• Protection Features: Includes a low voltage error signal for detecting a falling output and a 2% over-temperature shutdown capability to safeguard the device and downstream components.
• Stable Operation: Designed for stability with low equivalent series resistance (ESR) capacitors greater than 12mΩ, simplifying external component selection.
• Robust Package: Supplied in a standard TO-92 through-hole package, facilitating easy prototyping and reliable manual or wave soldering.

Applications

Ideal for a wide range of electronic systems, including automotive control modules, consumer electronics, industrial instrumentation, multimedia devices, and general power management circuits where a clean, reliable 5V