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LT1117CST-5#PBF

LT1117CST-5#PBF Description

The LT1117CST-5#PBF is a high-performance, fixed-output 5V linear voltage regulator from Analog Devices Inc., designed to deliver up to 800mA of continuous output current with excellent line and load regulation. It operates over a wide input voltage range (up to 15V) and features a low dropout voltage of 1.2V at 800mA, making it ideal for applications requiring stable power conversion from higher input voltages. The device is housed in a compact SOT-223-3 surface-mount package, suitable for space-constrained designs. With a quiescent current of 10mA and a high PSRR of 75dB (120Hz), it ensures minimal power loss and superior noise rejection, critical for sensitive analog and digital circuits.

LT1117CST-5#PBF Features

• Fixed 5V Output: Precision-regulated output voltage for consistent performance.
• High Current Capability: Supports up to 800mA load current.
• Low Dropout Voltage: 1.2V at 800mA maximizes efficiency in battery-powered systems.
• Robust Protection: Integrated over-temperature protection enhances reliability.
• Excellent Noise Rejection: 75dB PSRR minimizes ripple in sensitive applications.
• Wide Operating Range: 0°C to 125°C ensures stability in harsh environments.
• Compact SOT-223-3 Package: Optimized for space-saving PCB layouts.
• RoHS3 & REACH Compliant: Meets stringent environmental standards.

LT1117CST-5#PBF Applications

The LT1117CST-5#PBF is ideal for:

• Embedded Systems: Powering microcontrollers, FPGAs, and sensors in industrial/consumer electronics.
• Battery-Powered Devices: Efficient voltage regulation in portable equipment (e.g., handheld instruments).
• Automotive Electronics: Stable 5V supply for infotainment and control modules.
• Telecom Infrastructure: Noise-sensitive RF and signal processing circuits.
• Point-of-Load (PoL) Regulation: Localized power delivery in multi-voltage PCBs.

Conclusion of LT1117CST-5#PBF

The LT1117CST-5#PBF combines high efficiency, reliability, and compact design, making it a superior choice for applications demanding stable 5V power. Its low dropout, high PSRR, and thermal protection outperform basic linear regulators, while the SOT-223-3 package ensures easy integration. Whether for industrial, automotive, or portable designs, this regulator delivers consistent performance under varying load and temperature conditions.