LTC3803MPS6-3#TRMPBF

DC DC Switching Controllers Overview

The LTC3803MPS6-3#TRMPBF is a constant frequency current mode flyback DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 8.7 V to 75 V and delivers a fixed 3 V output. The device features a switching frequency of 200 kHz and a maximum duty cycle of 80%. It exhibits a low quiescent current of 240 uA and functions reliably across an extended temperature range from -55°C to +150°C. Packaged in a TSOT-23-6 surface-mount format, it supports isolated positive outputs with integrated current limiting and enable control.

DC DC Switching Controllers Feature Summary

• Implements constant frequency current mode control for stable flyback converter operation
• Supports wide input voltage ranges suitable for high-voltage isolation applications
• Features low operating supply current to minimize standby power consumption
• Includes built-in current limit and shutdown functionality for enhanced protection

DC DC Switching Controllers Applications

• Isolated DC/DC conversion in industrial power supplies
• High-voltage battery charging systems requiring galvanic isolation
• Telecommunications equipment utilizing wide input voltage rails
• Distributed power architectures needing compact isolated stages

DC DC Switching Controllers Procurement Notes

Verify the specific suffix MPS6 against official Analog Devices documentation to confirm military-grade qualification and extended temperature ratings. Ensure the ordering part number matches the exact package variant and tape/reel specifications required for your assembly process. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when designing flyback converters requiring wide input voltage tolerance and high-temperature reliability. The fixed 3 V output simplifies feedback network design for specific isolated rails. Consider the 200 kHz switching frequency for balancing efficiency and passive component size. Ensure the external transformer and MOSFETs support the 75 V maximum input rating and thermal requirements up to 150°C.

DC DC Switching Controllers Part Context

This controller belongs to the LTC3803 family of flyback DC/DC controllers designed for isolated power applications. The MPS6 suffix indicates a military-grade version with extended temperature capabilities compared to standard commercial variants. It shares core architecture with other parts in the series but offers enhanced environmental robustness for demanding operational conditions.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices technical support or official distributor catalogs for qualified alternatives if this specific military-grade variant is unavailable.