LTC1871XMS#TRPBF

DC DC Switching Controllers Overview

The LTC1871XMS#TRPBF is a wide input range, no RSENSE current mode boost, flyback, and SEPIC controller manufactured by Analog Devices Inc. It operates within a switching frequency range of 50 kHz to 1 MHz and supports a maximum duty cycle of 97%. The device accommodates an output voltage of 5.2 V and can handle up to 20 A output current. It functions reliably across a temperature range from -40°C to +125°C. Powered by a 5.2 V supply with a quiescent current of 250 uA, it is housed in a compact MSOP-10 package designed for surface mount installation.

DC DC Switching Controllers Feature Summary

• Supports multiple converter topologies including boost, flyback, and SEPIC configurations
• Eliminates the need for external sense resistors through internal current mode control
• Features wide input voltage range capability for flexible power design applications

DC DC Switching Controllers Applications

• Boost converter designs requiring high efficiency without current sensing components
• Flyback power supplies for isolated DC/DC conversion
• SEPIC applications handling input voltages that may rise above or fall below output levels

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm availability status as distribution channels may report limited stock or restricted supply conditions. Ensure the component matches the required MSOP-10 package dimensions and pinout configuration for your PCB layout. Cross-reference the manufacturer datasheet for any recent product change notifications affecting specifications or materials.

DC DC Switching Controllers Selection Notes

Select this controller when designing power stages that require flexibility across boost, flyback, and SEPIC topologies. The absence of a current sense resistor simplifies the bill of materials and reduces cost. Consider the 50 kHz to 1 MHz frequency range for balancing efficiency and component size. Verify that the 20 A output current capability meets the load requirements of the target application circuit.

DC DC Switching Controllers Part Context

This component belongs to the LTC1871X series of switching controllers from Analog Devices. It is categorized under PMIC - Power Management ICs. The part is specifically designed for applications needing versatile topology support and simplified current sensing. It complements other power management solutions by offering a single-chip approach for non-isolated and isolated converter designs.

DC DC Switching Controllers Replacement Considerations

Check for direct substitutes within the LTC1871 family such as the LTC1871IMS#PBF for tube packaging variants. Evaluate alternative no-RSENSE controllers if the MSOP-10 package is unsuitable. Ensure any replacement maintains compatibility with the required input voltage range and switching frequency specifications.