LTC1159CG-3.3#TRPBF

DC DC Switching Controllers Overview

The LTC1159CG-3.3#TRPBF is a synchronous step-down switching regulator controller from Analog Devices, designed for high-efficiency DC-to-DC conversion. It operates with an input voltage range of 4V to 40V and provides a fixed 3.3V output. The device supports up to 2A output current and achieves efficiencies of 95%. Key features include automatic Burst Mode operation for maintaining efficiency at low load currents. It is housed in a 20-pin SSOP package.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology for improved efficiency
• Automatic Burst Mode operation for light-load performance
• Wide input voltage range capability
• Fixed 3.3V output regulation

DC DC Switching Controllers Applications

• High efficiency synchronous step-down switching regulators
• 12V to -12V converter circuits
• Dual output 5V and 3.3V regulator systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when reviewing official documentation. Confirm the operating temperature range and pinout configuration against the manufacturer's datasheet before integration. Ensure compatibility with external power MOSFETs and passive components as specified in the reference design guidelines provided by Analog Devices.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring a wide input voltage range and high efficiency across varying load conditions. The fixed 3.3V output simplifies design for standard logic levels. Consider the synchronous architecture for better thermal performance compared to non-synchronous alternatives. Verify that the required output current does not exceed the 2A limit under worst-case thermal conditions.

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 at low output currents through automatic Burst Mode operation. It is distinct from other Analog Devices regulators by its specific focus on wide input ranges and integrated control logic for synchronous rectification.

DC DC Switching Controllers Replacement Considerations

Consult Analog Devices documentation for direct replacements within the LTC1159 family, such as variants with different output voltages or packages. Cross-reference with other synchronous buck controllers if pin compatibility is not required. Verify electrical specifications match the original design requirements.