LM1117IMP-3.3/NOPB – TEXAS INSTRUMENTS

The LM1117IMP-3.3/NOPB is a 3.3V, 800mA low-dropout (LDO) linear regulator in a space-saving SOT-223 package. Its key feature is the exceptionally low dropout voltage, typically 1.1V at 800mA, allowing efficient regulation even with limited input-output voltage differentials. This is crucial in battery-powered applications where minimizing power loss is paramount. The device boasts excellent line and load regulation, with typical line regulation of 0.04%/V and load regulation of 0.1%. Output voltage tolerance is ±4%, ensuring stable 3.3V supply. The “NOPB” suffix indicates a lead-free, halogen-free, and RoHS compliant package._x000D_
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The LM1117IMP-3.3/NOPB provides thermal overload protection and short-circuit protection, enhancing system reliability. Its internal current limiting prevents damage from overloads. Common applications include post-regulation of switching regulators, providing a clean 3.3V supply for microcontrollers, and powering sensitive analog circuitry requiring a stable voltage source. Its small footprint and low-dropout characteristics make it ideal for portable devices and space-constrained designs where efficiency is critical. The absence of external components for basic operation simplifies circuit design and reduces board area.