LT3473AEDE#TRPBF

Overview

The LT3473AEDE#TRPBF is a micro-power step-up DC/DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 3V to 4.2V and provides a fixed output voltage of 25V at up to 80mA. The device utilizes a boost topology with a switching frequency of 1.2MHz. Key electrical specifications include a maximum efficiency of 78% and a shutdown current of 1µA. It is housed in an 8-lead DFN package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates a Schottky diode and output disconnect circuitry for improved standby mode efficiency
• Features automatic burst mode operation to minimize quiescent current consumption
• Designed specifically for OLED bias power applications requiring compact solutions

Applications

• OLED display bias power supplies
• Lithium-ion battery powered devices requiring high voltage boost
• Portable electronics with strict standby power constraints

Procurement Notes

Verify the specific suffix AEDE against official Analog Devices documentation to confirm temperature grade and packaging configuration. Ensure compatibility with the required 8-lead DFN footprint during PCB layout. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.

Selection Notes

Select this component when designing circuits that require boosting low lithium-ion voltages to higher levels for OLED drivers. The integrated Schottky diode reduces external component count compared to standard boost converters. Evaluate the 80mA output limit against peak load requirements to ensure adequate headroom for transient responses.

Part Context

This part belongs to the LT3473 family of micro-power boost converters. It is distinct from other LT347x series parts by its specific focus on OLED biasing and integrated output disconnect features. The A-grade designation indicates extended industrial temperature performance within the specified DFN package format.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.