ONSEMI NCP1117DT50G Fixed LDO Voltage Regulator, 5V/1A, TO-252-3

The ONSEMI NCP1117DT50G is a high-performance, positive low dropout (LDO) linear voltage regulator designed for stable and efficient power management. Capable of delivering an output current in excess of 1A, it features a low maximum dropout voltage of just 1.2V at 800mA across the full operating temperature range, ensuring efficient operation even when the input voltage is close to the desired output level.

This fixed 5V output version offers excellent accuracy, with on-chip trimming adjusting the reference voltage to within ±1.0%. A key advantage is its no minimum load requirement, simplifying circuit design for low-power applications. For engineers requiring flexibility, an adjustable output version of this regulator is also available, programmable from 1.25V to 18.8V using two external resistors.

Robust internal protection is a cornerstone of its design, integrating output current limiting, safe operating area (SOA) compensation, and thermal shutdown to safeguard both the regulator and the downstream circuitry under fault conditions. It is constructed as a lead-free (Pb-free) device, compliant with modern environmental standards, and is rated for operation with input voltages up to 20V.

Encased in a compact, surface-mount TO-252-3 (DPAK) package, it is ideal for space-constrained PCB designs. Its wide operating temperature range from 0°C to 125°C ensures reliable performance in demanding environments, from consumer electronics to industrial control systems.

Primary Applications:

• Consumer Electronics
• Power Management Systems
• Industrial Automation and Controls

Choosing the ONSEMI NCP1117DT50G provides a reliable, accurate, and protected voltage regulation solution for a wide array of electronic designs.