LTC3547EDDB#TRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3547EDDB#TRPBF is a dual monolithic synchronous step-down regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 2.5 V to 6.5 V and provides two independent outputs adjustable from 600 mV to 5.5 V. Each channel delivers up to 300 mA of output current. The device utilizes a fixed switching frequency of 2.25 MHz and features a quiescent supply current of 450 µA. It is housed in an 8-lead DFN package and supports operation temperatures from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates two independent synchronous buck converters within a single compact package
• Supports wide input voltage ranges suitable for battery-powered applications
• Includes integrated power switches for high efficiency and reduced external component count

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring multiple low-voltage rails
• Battery-operated devices needing efficient DC-DC conversion
• Embedded systems utilizing the DC1013A demonstration circuit

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm that the EDDB variant meets the required industrial temperature specifications compared to other grade options. Ensure compatibility with the 8-lead DFN footprint during PCB layout. Cross-reference the manufacturer datasheet for exact handling and moisture sensitivity levels prior to assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a design requires two isolated or non-isolated regulated outputs from a single power source. The dual-channel architecture simplifies board space constraints compared to using separate regulators. Consider the 2.25 MHz switching frequency for balancing component size against noise performance. Verify that the 300 mA per channel limit satisfies the peak load requirements of the target application circuits.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3547B series of dual synchronous buck regulators. It shares functional similarities with other Analog Devices PMICs but is distinct in its dual-output configuration and specific voltage/current ratings. The device is designed to replace discrete solutions, offering improved power density and simplified thermal management for portable electronic designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.