Fixed LDO Voltage Regulator 15V in 3.3V 800mA out SOT-223-4

The LM1117MPX-3.3/NOPB is a high-performance, low-dropout (LDO) voltage regulator from Texas Instruments, designed for efficient power management applications. This fixed-output regulator provides a stable 3.3V supply with a maximum output current of 800mA, featuring a low dropout voltage of just 1.2V. This characteristic makes it ideal for systems where the input voltage is only slightly higher than the required output, helping to conserve energy and extend battery life in portable devices.

Constructed with a zener trimmed band gap reference, the regulator assures exceptional output voltage accuracy to within ±1%. The device incorporates essential protection features including current limiting and thermal shutdown, safeguarding both the regulator and the downstream circuitry from damage due to overloads or excessive operating temperatures. For optimal performance, a minimum of a 10µF tantalum capacitor is recommended at the output to enhance transient response and ensure stability.

Housed in a compact SOT-223-4 surface-mount package, it offers the same pin-out as the industry-standard LM317, providing a straightforward upgrade path or replacement in existing designs. This regulator is part of a versatile family also available in adjustable and other fixed voltage versions (1.8V, 2.5V, 2.85V, 3.3V, and 5V), offering designers flexibility across multiple projects.

As a green product compliant with environmental standards (No Sb/Br), it is suitable for modern electronics requiring reliable and precise voltage regulation. Its robust performance across an operating temperature range of 0°C to 125°C makes it a dependable choice for a wide array of commercial and industrial applications.