LT3693EDD#TRPBF

Overview

The LT3693EDD#TRPBF is a monolithic step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6V to 36V and delivers a continuous output current of 3.5A. The device features an adjustable output voltage starting from 0.79V, with a maximum limit of 30V. It integrates a high-speed PWM controller capable of operating at switching frequencies between 230kHz and 2.45MHz. The component is housed in a 10-MSOP package with an exposed pad (10-TFSOP, 10-MSOP) for thermal management. It supports positive output configuration and includes shutdown functionality. The operational junction temperature range extends from -40°C to +125°C.

Feature Summary

• Integrates a high-efficiency synchronous buck converter topology within a compact monolithic package.
• Features a wide input voltage range suitable for various industrial power supply architectures.
• Includes programmable switching frequency adjustment to optimize efficiency and external component size.
• Provides precise adjustable output voltage regulation with internal error amplifier feedback.

Applications

• Industrial point-of-load regulation
• Embedded system power distribution
• Telecommunications equipment power supplies

Procurement Notes

Verify the specific suffix 'EDD' against official Analog Devices documentation to confirm the exact package type and tape-and-reel specifications. Ensure compatibility with your PCB footprint design, particularly regarding the exposed pad thermal requirements. Cross-reference the datasheet revision date to confirm electrical parameter consistency before finalizing procurement orders.

Selection Notes

Select this component when a single-channel, high-current buck regulator is required within a limited board area. The adjustable frequency feature allows designers to balance EMI performance against passive component size. Verify that the thermal dissipation capabilities of the 10-MSOP package meet the application's power loss constraints under maximum load conditions.

Part Context

This part belongs to the LT3693 family of step-down regulators designed for applications requiring high current density. It serves as a direct replacement for legacy Linear Technology parts in updated designs. The series is characterized by its ability to operate efficiently across a broad input voltage spectrum while maintaining stable output regulation under varying load conditions.

Replacement Considerations

LT3680EMSE#TRPBF, LT3680HMSE#TRPBF, LT3680IMSE#TRPBF, LT3693EMSE#TRPBF are documented parameter equivalents.