ONSEMI NCP1117LP Fixed Voltage Regulator, 3.3V 1A, SOT-223

The ONSEMI NCP1117LP is a low-power variant of the popular NCP1117 family of low dropout (LDO) voltage regulators. Designed with a reduced quiescent current, it is engineered primarily for high-volume consumer electronics applications that demand reliable power regulation across a broad operating temperature range.

This fixed-output regulator is capable of delivering a stable output current exceeding 1A. It features a low dropout voltage of just 1.3V at the full 1A load, making it highly efficient and suitable for systems where the input voltage is only slightly higher than the required output. The device is part of a versatile series that includes an adjustable version and five fixed voltage options: 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V.

Housed in a compact SOT-223-3 surface-mount package, this regulator is ideal for space-constrained PCB designs. Its robust construction ensures stable performance from 0°C to 125°C, providing dependable voltage regulation for a wide array of electronic circuits. The positive polarity output and single-channel design simplify integration into your power supply architecture.

Key Applications

Ideal for powering microcontrollers, sensors, memory modules, and other low-voltage digital logic circuits in consumer devices, set-top boxes, networking equipment, and portable electronics where stable, clean power is critical from a marginally higher input source.