Texas Instruments

UA7905CKTTR

UA7905CKTTR Description

The UA7905CKTTR from Texas Instruments is a fixed-output, negative-voltage linear regulator delivering -5V at 1.5A with high efficiency and reliability. Designed for surface-mount applications, it comes in a DDPAK/TO-263 package and is supplied in Tape & Reel (TR) for automated assembly. This regulator operates over a wide temperature range (0°C to 125°C) and features a low dropout voltage of 1.1V (max) at 1A, making it suitable for power-sensitive designs. With 60dB PSRR at 120Hz, it ensures stable output even in noisy environments.

UA7905CKTTR Features

• Fixed -5V Output: Ensures consistent voltage regulation for precision applications.
• High Current Capacity: Supports up to 1.5A output current.
• Robust Protection: Includes over-current, over-temperature, and short-circuit protection for enhanced reliability.
• Low Dropout Voltage: 1.1V (max) at 1A minimizes power dissipation.
• High PSRR: 60dB at 120Hz reduces noise interference.
• Wide Operating Temperature: 0°C to 125°C for industrial and automotive use.
• RoHS3 & REACH Compliant: Meets environmental and safety standards.

UA7905CKTTR Applications

• Industrial Power Supplies: Stable voltage for control systems and sensors.
• Automotive Electronics: Reliable power management in harsh environments.
• Telecom Infrastructure: Noise-resistant regulation for communication devices.
• Consumer Electronics: Efficient power delivery for audio/video equipment.
• Test & Measurement Equipment: Precision voltage reference for instrumentation.

Conclusion of UA7905CKTTR

The UA7905CKTTR is a high-performance, negative-voltage regulator ideal for applications demanding stable power, high current, and robust protection. Its low dropout, high PSRR, and wide temperature range make it superior to similar models in noisy or thermally challenging environments. While marked as Last Time Buy, it remains a dependable choice for legacy and new designs requiring -5V regulation with minimal noise and high efficiency. Engineers should consider this component for industrial, automotive, and telecom systems where reliability is critical.