LTC1159IS-3.3#TRPBF

DC DC Switching Controllers Overview

The LTC1159IS-3.3#TRPBF is a synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 40V and provides a fixed output voltage of 3.3V. The device supports an output current of up to 2A and achieves efficiencies of up to 95%. It features automatic Burst Mode operation for high efficiency at low load currents. The component is housed in a 16-SOIC package, operates within a temperature range of -40°C to +85°C, and utilizes a 2.2MHz switching frequency.

DC DC Switching Controllers Feature Summary

• Synchronous step-down topology with integrated control logic
• Automatic Burst Mode operation maintains high efficiency at light loads
• Fixed 3.3V output configuration for simplified design
• Wide input voltage range supporting diverse power sources

DC DC Switching Controllers Applications

• High efficiency DC-to-DC conversion systems
• Low-power embedded designs requiring stable timing sources
• Dual-output regulator configurations (e.g., 5V and 3.3V)
• 12V to -12V converter applications

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the IS grade temperature range (-40°C to +85°C) matches your environmental requirements. Ensure compatibility with the 16-SOIC footprint during PCB layout. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance or lifecycle status before finalizing procurement plans.

DC DC Switching Controllers Selection Notes

Select this component when a fixed 3.3V output is required from a wide input voltage range up to 40V. It is suitable for applications prioritizing efficiency at both full and light loads due to Burst Mode capability. The SOIC package offers a balance between thermal performance and board space. Consider the 2A current limit when sizing external components and ensuring adequate heat dissipation for the intended duty cycle.

DC DC Switching Controllers Part Context

This part belongs to the LTC1159 series of synchronous step-down switching regulator controllers. The series is characterized by its ability to maintain high efficiency across varying load conditions through automatic Burst Mode operation. It serves as a core power management solution for converting higher input voltages down to regulated lower voltages in compact electronic systems.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical specifications against potential alternatives to ensure functional compatibility without redesigning the surrounding circuitry.