LTC3531EDD#TRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3531EDD#TRPBF is a synchronous buck-boost DC/DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 2V to 5.5V and provides a fixed output voltage of 3.3V. The device delivers up to 200mA of output current through a single channel. It utilizes an 8-pin WFDFN package with an exposed pad for thermal management. The component supports operation across a temperature range from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for improved efficiency
• Buck-boost topology supporting input voltages above or below the regulated output level
• Integrated power switch eliminating external MOSFET requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronics requiring stable regulation during discharge cycles
• Single-cell lithium-ion battery systems operating in both boost and buck regions
• Industrial sensor nodes with varying supply rail conditions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging with lead-free compliance when ordering. Confirm the 8-WFDFN package variant matches your PCB footprint design. Ensure the fixed 3.3V output specification aligns with load requirements, as adjustable versions exist within the same family. Cross-reference the manufacturer part number directly with official Analog Devices documentation to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltage fluctuates around the target output voltage, necessitating buck-boost capability rather than simple buck or boost topologies. The 200mA current limit suits low-power applications where space constraints favor the compact 8-pin DFN package over larger solutions. Consider the fixed 3.3V output if it matches the system rail requirement, avoiding the need for external feedback resistors used in adjustable variants.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3531 series of synchronous switching regulators designed for space-constrained applications. The series offers various output configurations including fixed and adjustable voltages. The EDD suffix denotes the specific 8-lead thin profile plastic package type, distinguishing it from other package options like ES6 available in the broader product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LTC3531ES6-3#TRPBF: Same electrical specifications but housed in a TSOT-23-6 package instead of the 8-WFDFN. Verify footprint compatibility before substitution.