LTC1143LCS#TRPBF

DC DC Switching Controllers Overview

The LTC1143LCS#TRPBF is a dual high-efficiency switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 3.5 V to 16 V and features an operating supply current of 1.6 mA. The device integrates two independent regulator blocks, each utilizing a constant off-time current mode architecture to drive external power MOSFETs at switching frequencies up to 400 kHz. This configuration supports buck converter topologies for dual-output DC-DC conversion applications.

DC DC Switching Controllers Feature Summary

• Dual independent regulator blocks for simultaneous multi-rail power generation
• Constant off-time current mode architecture for stable control
• Automatic Burst Mode operation to maintain efficiency at low load currents

DC DC Switching Controllers Applications

• Dual-output DC-DC converter designs
• Embedded systems requiring multiple regulated voltage rails
• Portable electronics with battery-powered inputs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when confirming order details. Ensure the component matches the Analog Devices Inc. manufacturer identification. Cross-reference the part number against official distributor catalogs to confirm availability and authenticity before procurement.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring two isolated or non-isolated output voltages from a single input source. The 400 kHz switching frequency allows for compact passive component selection. Verify that external MOSFETs are rated for the required current and voltage levels, as the IC controls rather than drives the power stage directly.

DC DC Switching Controllers Part Context

This component belongs to the LTC1143 series of dual step-down switching regulator controllers. It is designed for high-efficiency power management in space-constrained environments. The SO-16 package facilitates surface-mount assembly. The device complements other Analog Devices linear and switching regulators for comprehensive power solutions.

DC DC Switching Controllers Replacement Considerations

Consult official Analog Devices documentation for qualified pin-compatible or functionally equivalent alternatives. Verify electrical specifications such as input voltage range and switching frequency match the original design requirements before substitution.