LT3694EUFD#PBF

Overview

The LT3694EUFD#PBF is a monolithic switching regulator featuring one buck converter and two low-dropout linear regulators (LDOs) in a single package. It accepts input voltages from 4 V to 36 V. The buck output provides up to 2.6 A with an adjustable voltage range of 750 mV to 16 V. Operating frequencies are selectable between 250 kHz and 2.5 MHz. The device operates within a temperature range of -40°C to +125°C and is housed in a 28-lead QFN package.

Feature Summary

• Integrates a high-efficiency synchronous buck converter alongside two independent LDOs for combined power management.
• Supports wide input voltage ranges suitable for industrial and automotive bus systems.
• Features programmable switching frequency to optimize external component size and efficiency.
• Includes thermal regulation and current limit protection for robust operation.

Applications

• Industrial control systems requiring multiple regulated rails
• Automotive electronics and infotainment modules
• Distributed power supply architectures
• Battery-powered equipment with varying load requirements

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and functional variations. Ensure the procurement channel sources genuine components to avoid counterfeit risks. Confirm RoHS compliance status and packaging type directly with the manufacturer or authorized distributors prior to ordering.

Selection Notes

Select this component when a design requires a single IC solution for both switching and linear regulation stages. The integrated topology reduces board space compared to discrete solutions. Verify that the required output currents and voltage levels fall within the specified operational limits of the buck and LDO channels.

Part Context

This part belongs to the LT3694 family of mixed-signal power management ICs. It is designed to simplify power distribution in compact applications. The EUFD suffix indicates a specific commercial grade variant within the broader LT3694 product line, distinguished by its operating temperature range and package configuration.

Replacement Considerations

LT3694IUFD#PBF is documented as a parameter-equivalent alternative within the same series.