STMicroelectronics

LDL1117S25R  

Linear & Switching Voltage Regulators

LDL1117S25R Description

The LDL1117S25R from STMicroelectronics is a high-performance, fixed-output 2.5V linear voltage regulator designed to deliver up to 1.2A of continuous output current. With a wide input voltage range of up to 18V, this regulator is engineered for stability and efficiency, featuring a low dropout voltage of 0.6V (max) at 1.2A. Its positive output configuration and robust protection mechanisms—including over-current, over-temperature, and under-voltage lockout (UVLO)—make it a reliable choice for demanding applications. Packaged in a SOT-223 surface-mount form factor and available in Tape & Reel (TR), it is optimized for automated assembly processes.

LDL1117S25R Features

• Fixed 2.5V Output: Ensures precise voltage regulation for sensitive circuits.
• High Current Capacity: Supports 1.2A output with minimal dropout (0.6V).
• Exceptional PSRR: 87dB to 65dB (120Hz–100kHz) for superior noise suppression.
• Low Quiescent Current: 500 µA typical, enhancing power efficiency.
• Integrated Protections: Over-current, over-temperature, and UVLO for enhanced system reliability.
• Wide Input Range: Up to 18V, accommodating diverse power sources.
• RoHS3 & REACH Compliant: Meets stringent environmental standards.
• MSL 1 (Unlimited): Suitable for extended storage without moisture sensitivity concerns.

LDL1117S25R Applications

Ideal for applications requiring stable, low-noise power delivery, the LDL1117S25R excels in:

• Industrial Control Systems: Powering sensors, PLCs, and microcontrollers.
• Consumer Electronics: Voltage regulation in set-top boxes, routers, and audio equipment.
• Automotive Electronics: Auxiliary power for infotainment and telematics (within input limits).
• Embedded Systems: Reliable voltage supply for FPGAs, DSPs, and low-power processors.
• Medical Devices: Precision power management in portable diagnostics and monitoring equipment.

Conclusion of LDL1117S25R

The LDL1117S25R stands out for its high current output, low dropout, and robust protections, making it a superior choice over basic LDOs in noise-sensitive or power-constrained designs. Its industrial-grade reliability, combined with STMicroelectronics' quality assurance, ensures long-term performance in critical applications. Whether for industrial, consumer, or embedded systems, this regulator delivers efficiency, stability, and peace of mind.

LDL1117S25R Documents

Download datasheets and manufacturer documentation for LDL1117S25R

PCN :

Product Change Notification (PDF)