LT3502EMS#PBF

Overview

The LT3502EMS#PBF is a current mode PWM step-down DC/DC converter manufactured by Analog Devices Inc. It features an internal 500mA power switch and operates at switching frequencies of 1.1MHz or 2.2MHz. The device is housed in a compact 10-lead MSOP package, specifically the MS10 variant with a width of 3.00mm. It provides a positive adjustable output voltage starting from 0.8V, with a maximum output voltage rating of 36V. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates a 500mA power switch within a current mode PWM architecture
• Offers selectable high-frequency operation at 1.1MHz or 2.2MHz for reduced passive component size
• Utilizes a tiny 10-lead MSOP (MS10) package for space-constrained designs

Applications

• Portable battery-powered equipment requiring efficient step-down conversion
• Industrial systems utilizing distributed power architectures
• Embedded applications needing compact voltage regulation solutions

Procurement Notes

Verify availability status as this part number may be subject to restricted availability or limited stock conditions depending on the distributor region. Confirm that the MS10 package variant matches your PCB footprint requirements. Ensure the lead-free (PBF) designation aligns with your assembly process specifications and regulatory compliance needs before finalizing procurement orders.

Selection Notes

Select this component when a compact solution is required for stepping down input voltages to adjustable levels up to 36V. The choice between 1.1MHz and 2.2MHz frequencies should be based on inductor size constraints versus EMI considerations. Ensure the load current does not exceed the internal 500mA switch limit. Verify thermal performance within the specified -40°C to +85°C operating range for your specific application environment.

Part Context

This part belongs to the LT3502 family of synchronous buck regulators designed for high efficiency in small footprints. It is distinct from the LT3502A variant and other Linear Technology products like the LTC3202 or LT3512, which serve different topologies such as LED drivers or flyback converters. The EMS suffix denotes the MSOP package type, differentiating it from DFN package variants.

Replacement Considerations

Direct substitutes include the LT3502EMS#TRPBF if tape-and-reel packaging is preferred over tube. Check for LT3502A equivalents if enhanced specifications are needed. No other direct cross-model replacements are confirmed in public documentation.