LTC3624EMSE-3.3#TRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3624EMSE-3.3#TRPBF is a high-efficiency, synchronous monolithic step-down regulator from Analog Devices Inc., designed for applications requiring compact power solutions. It delivers a fixed 3.3V output at up to 2A with an input voltage range of 2.7V to 17V. The device operates at a fixed 1MHz switching frequency, which can be synchronized within ±40% to an external clock. Key electrical specifications include a typical efficiency of 95%, ultra-low quiescent current of 3.5µA, and a load regulation of 0.1%. It functions reliably across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel MOSFETs for efficient synchronous rectification in a compact MSOP-12 package.
• Features ultra-low quiescent current operation to maximize battery life in portable and battery-powered systems.
• Allows synchronization to an external clock signal to optimize system timing and reduce electromagnetic interference.
• Includes programmable soft-start to limit inrush current during startup and ensure stable voltage ramp-up.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable instrumentation and handheld devices
• Industrial control systems and automation
• Battery-powered equipment and IoT nodes

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix #TRPBF indicates tape-and-reel packaging and lead-free compliance. Confirm the EMSE variant meets industrial temperature requirements (-40°C to +125°C). Ensure the specific part number matches the required 3.3V fixed output and 2A current rating. Check for RoHS directive compliance documentation if required by your manufacturing standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required with high efficiency and low standby current. The 1MHz frequency allows for smaller passive components compared to lower-frequency regulators. Consider the MSOP-12 package size constraints and thermal dissipation capabilities. Verify that the input voltage range of 2.7V to 17V aligns with your system's power source.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3624 family of synchronous buck regulators. Variants such as LTC3624HMSE-3.3 offer higher temperature grades, while other suffixes may indicate different packaging or output voltages. The family is characterized by high efficiency and low quiescent current, suitable for space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other Analog Devices synchronous buck regulators with similar voltage and current ratings, such as the LTC3624IMSE-3.3#PBF (tube packaging) or LTC3624HMSE-3.3#TRPBF (higher temperature grade). Cross-vendor replacements require matching input/output voltage ranges, current capacity, and package dimensions.