TILM1117MPX-5.0/NOPB

Overview

The LM1117MPX-5.0/NOPB is a low dropout (LDO) linear voltage regulator designed to provide a fixed 5V output at up to 800mA. It is a industry-standard power management component known for its 1.2V dropout at full load and integrated protection features. This specific variant comes in a SOT-223 package, making it suitable for compact surface-mount designs requiring a stable 5V rail.

Why Choose This Part

This regulator offers excellent ripple rejection with 75dB PSRR at 120Hz and includes built-in current limiting and thermal overload protection to ensure system reliability. The SOT-223 package provides a balance between small footprint and thermal dissipation capabilities for loads up to 800mA.

Applications

Getting Started

To ensure stability, the LM1117 requires a minimum of 10uF tantalum output capacitance. When designing the PCB layout, provide sufficient copper area around the SOT-223 tab to manage heat dissipation, as the junction-to-ambient thermal resistance is highly dependent on the board layout.

LM1117 Family

Comparing specs that differ across variants. The current part is highlighted.

Also Consider

LD1117S50TR STMicroelectronics - A highly compatible 1117-series alternative in a SOT-223 package with similar electrical characteristics.

LM1117MPX-ADJ/NOPB TITexas Instruments - The adjustable version of the same family, allowing for custom output voltages using an external resistor divider on the same footprint.