LT1912EDD#PBF

Overview

The LT1912EDD#PBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6V to 36V and delivers up to 2A of output current. The device integrates a 500kHz fixed-frequency PWM controller, featuring cycle-by-cycle current limit and adjustable soft-start capabilities. Packaged in a compact 10-lead DFN (3mm x 3mm) footprint with an exposed thermal pad, it supports efficient power conversion for space-constrained applications.

Feature Summary

• Integrates a high-efficiency synchronous buck converter topology with internal power switches
• Features a fixed 500kHz switching frequency to optimize external component size
• Includes programmable soft-start functionality to control inrush current during startup
• Provides comprehensive protection through integrated cycle-by-cycle current limiting

Applications

• Point-of-load regulation for industrial equipment
• Power supply stages for embedded computing systems
• Battery-powered portable devices requiring efficient voltage stepping
• Telecommunications infrastructure power distribution

Procurement Notes

Verify the specific suffix #PBF confirms lead-free and RoHS compliance status before procurement. Confirm the package designation EDD corresponds to the 10-WFDFN form factor required for your PCB layout. Ensure the operating temperature range aligns with your system's environmental specifications. Cross-reference the manufacturer part number directly with official Analog Devices documentation to avoid counterfeit components.

Selection Notes

Select this component when a fixed 500kHz frequency is preferred over adjustable options to simplify filter design. Choose the LT1912EDD#PBF if the application requires a maximum load current of 2A within a 36V input window. Consider this part for designs where a small 3mm x 3mm footprint is critical. Evaluate thermal performance requirements given the exposed pad package for adequate heat dissipation.

Part Context

This part belongs to the LT1912 family of synchronous buck regulators from Analog Devices. It shares architectural similarities with other members like the LT1913 but differs in current rating and switching frequency parameters. The series is designed for general-purpose DC-DC conversion tasks requiring high efficiency and compact solution sizes in modern electronic systems.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Direct pin-compatible replacements may include other members of the LT191x family depending on specific current or frequency requirements. Verify electrical parameter compatibility before swapping.