LT3480MPMSE

Overview

The LT3480MPMSE is a monolithic buck switching regulator from Analog Devices Inc., housed in a 10-TFSOP package with an exposed pad. It accepts input voltages ranging from 3.6V to 36V, with a maximum rating of 60V. The device features a high-efficiency 0.25A switch and delivers up to 2A output current. Its adjustable switching frequency spans 200kHz to 2.4MHz, allowing for optimized external component selection. The output voltage is adjustable from 0.79V to 20V. It operates within a junction temperature range of -55°C to 150°C.

Feature Summary

• Integrated high-efficiency power switch and boost Schottky diode for compact design
• Adjustable switching frequency from 200kHz to 2.4MHz to optimize performance
• Wide input voltage range supporting harsh industrial environments
• Extended operating temperature range for reliability

Applications

• Portable device backlight LED driving
• Industrial control systems
• Automotive electronics
• Battery-powered equipment

Procurement Notes

Verify the specific suffix (PBF or TRPBF) against your assembly requirements. The PBF variant indicates lead-free tape and reel packaging suitable for surface-mount technology. Confirm that the 10-TFSOP exposed pad footprint matches your PCB layout guidelines. Ensure the supplier provides valid origin documentation to guarantee authenticity, as this is a military-grade component requiring strict supply chain integrity.

Selection Notes

Select this component when a wide input voltage range up to 36V is required alongside high efficiency. The adjustable frequency allows designers to minimize inductor size at higher frequencies. Consider the exposed pad thermal requirement for adequate heat dissipation. This part is suitable for applications demanding robust operation across extreme temperatures, provided the 2A output current meets the load requirements.

Part Context

This part belongs to the LT3480 family of buck regulators designed by Linear Technology, now part of Analog Devices Inc. It serves as a high-performance solution for space-constrained designs requiring wide input ranges. The MP designation typically indicates military-grade qualification, offering enhanced reliability compared to standard commercial variants within the same functional family.

Replacement Considerations

Direct substitutes include other parts from the LT3480 family with compatible pinouts and electrical characteristics. Verify that any replacement maintains the 10-TFSOP package dimensions and thermal pad configuration. Cross-reference the switching frequency range and output current capabilities to ensure system compatibility without redesigning the passive components.