onsemi

NCP566ST25T3G

NCP566ST25T3G Description

The NCP566ST25T3G from onsemi is a fixed-output linear voltage regulator designed to deliver a stable 2.5V output at up to 1.5A of continuous current. With an input voltage range extending up to 9V, this regulator is optimized for applications requiring reliable power conditioning. It features a low dropout voltage of 1.3V @ 1.5A, ensuring efficient operation even with marginal input headroom. The device is housed in a SOT-223 package, making it suitable for space-constrained designs. Although marked as obsolete, it remains a robust choice for legacy systems due to its high PSRR (85dB @ 120Hz) and low quiescent current (3 mA).

NCP566ST25T3G Features

• High Current Output: Supports 1.5A load current, ideal for powering medium-power circuits.
• Low Dropout Voltage: 1.3V @ 1.5A minimizes power dissipation, enhancing thermal performance.
• Excellent PSRR: 85dB ~ 75dB (120Hz ~ 1kHz) ensures clean output in noisy environments.
• Protection Mechanisms: Includes over-current and over-temperature safeguards for system reliability.
• Compact & RoHS Compliant: SOT-223 package with ROHS3 compliance suits modern eco-conscious designs.
• Wide Input Range: Operates up to 9V, accommodating various power sources.

NCP566ST25T3G Applications

• Embedded Systems: Stable voltage supply for microcontrollers, FPGAs, and sensors.
• Consumer Electronics: Power management in set-top boxes, routers, and audio equipment.
• Industrial Controls: Reliable voltage regulation for PLCs and motor drivers.
• Legacy Upgrades: Replacing older regulators in maintenance-heavy systems.
• Battery-Powered Devices: Efficient operation extends battery life in portable applications.

Conclusion of NCP566ST25T3G

The NCP566ST25T3G excels in delivering high-current, low-noise power with robust protection features. While obsolete, its high PSRR, low dropout, and compact form factor make it a pragmatic choice for legacy and niche applications. Engineers valuing reliability and efficiency in constrained environments will find this regulator a dependable solution. For new designs, consider onsemi's active alternatives with similar specs.