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LT3990IDD#PBF

LT3990IDD#PBF Description

The LT3990IDD#PBF is a high-performance, adjustable buck switching regulator from Analog Devices Inc., designed for demanding DC-DC conversion applications. Packaged in a compact 10DFN surface-mount form factor, it delivers up to 350mA of output current with an input voltage range of 4.2V to 62V and an adjustable output voltage from 1.21V to 25V. Operating at a switching frequency range of 210kHz to 2.3MHz, this regulator offers flexibility for noise-sensitive designs while maintaining high efficiency. Its non-synchronous buck topology ensures reliable performance in industrial, automotive, and telecom environments.

LT3990IDD#PBF Features

• Wide Input Range (4.2V–62V): Supports high-voltage inputs, ideal for automotive and industrial systems.
• Adjustable Output (1.21V–25V): Precision feedback enables tailored voltage regulation.
• High Switching Frequency (210kHz–2.3MHz): Reduces external component size, saving board space.
• Low Dropout Operation: Maintains regulation even with small input-output differentials.
• Robust Protection: Includes thermal shutdown and current limiting for enhanced reliability.
• RoHS3 Compliant & REACH Unaffected: Meets environmental and regulatory standards.

LT3990IDD#PBF Applications

• Automotive Systems: Powers infotainment, sensors, and lighting due to its wide input range.
• Industrial Equipment: Suitable for PLCs, motor control, and ruggedized power supplies.
• Telecom Infrastructure: Provides stable voltage for RF modules and base stations.
• Portable Devices: Efficiently steps down battery voltages in medical or handheld instruments.

Conclusion of LT3990IDD#PBF

The LT3990IDD#PBF stands out for its wide input range, compact design, and adjustable output, making it a versatile choice for high-reliability applications. Its ability to operate in harsh environments and compatibility with stringent standards (RoHS3, REACH) ensures long-term usability. Engineers will appreciate its balance of performance, efficiency, and protection features, particularly in space-constrained or high-voltage scenarios.