LT3758AMPMSE#TRPBF

Overview

The LT3758AMPMSE#TRPBF is a high input voltage DC/DC controller from Analog Devices, designed for boost, flyback, SEPIC, and inverting topologies. It operates with an input voltage range of 5.5 V to 100 V and supports switching frequencies between 100 kHz and 1 MHz. The device features a quiescent current of 100 nA and operates within a junction temperature range of -55°C to +150°C. Packaged in a 10-MSOP-EP surface-mount package, it provides one output channel with a maximum output current capability of 10 mA at a fixed output voltage of 7.2 V. The controller includes clock synchronization and soft-start functionality.

Feature Summary

• Supports multiple converter topologies including boost, flyback, SEPIC, and inverting configurations.
• Features ultra-low quiescent current for efficient power management in standby modes.
• Includes clock synchronization capability to reduce system noise.
• Provides integrated soft-start to limit inrush current during startup.

Applications

• High-voltage industrial power supplies
• Automotive electronics requiring wide input ranges
• Battery-powered systems needing low standby current
• Telecommunications infrastructure equipment

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm that the AMP variant meets the extended temperature requirements for your application environment. Ensure compatibility with the 10-MSOP-EP footprint on your PCB layout. Check for RoHS compliance documentation if required by your manufacturing standards. Validate that the 100 nA quiescent current specification aligns with your system's power budget constraints.

Selection Notes

Select this component when a wide input voltage range up to 100 V is required alongside extreme temperature operation. Consider the LT3758EMSE#TRPBF if a lower commercial temperature range (-40°C to +125°C) suffices for your design. Evaluate the LT3758IMSE#TRPBF if standard industrial temperatures are adequate. Ensure the external switch and transformer ratings match the controller's current mode control capabilities. Verify that the 10-MSOP-EP package size fits within your mechanical constraints.

Part Context

The LT3758 series comprises high input voltage DC/DC controllers capable of generating positive or negative outputs. The LT3758A variant specifically extends the operating temperature range to support harsh environments. These devices utilize current mode control for fast transient response. The family supports various isolated and non-isolated topologies. They are designed for applications requiring high efficiency and wide input voltage flexibility.

Replacement Considerations

LT3758EMSE#TRPBF offers similar functionality with a reduced temperature range. LT3758IMSE#TRPBF provides industrial grade performance. LT3758MPMSE#TRPBF matches the military-grade temperature specifications. LT3758AMPMSE#PBF is available in tube packaging instead of tape and reel. All variants share the same pinout and electrical characteristics except for temperature ratings.