LT3472EDD#PBF

Overview

The LT3472EDD#PBF is a dual, synchronous step-up DC/DC converter housed in a compact 3mm x 3mm DFN-10 package. It operates with an input voltage range of 2.7V to 4.2V and features two independent outputs capable of delivering up to 15V at 45mA and -8V at 65mA respectively. The device integrates a 1.1MHz switching frequency to minimize external component size while maintaining high efficiency across various load conditions.

Feature Summary

• Dual output architecture providing simultaneous positive and negative voltage generation
• Integrated synchronous rectification for enhanced power conversion efficiency
• Compact footprint design utilizing a small 3mm x 3mm DFN package
• Fixed internal switching frequency reduces required passive component count

Applications

• Portable electronic devices requiring multiple supply rails from a single source
• Battery-powered systems needing boosted and inverted voltage levels
• Embedded applications with strict space constraints for power management
• Circuitry requiring isolated or negative bias voltages from low input sources

Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliance when sourcing. Confirm that the ED variant matches the required thermal performance for your enclosure. Ensure the 3mm x 3mm DFN-10 footprint aligns with your PCB layout guidelines before finalizing procurement orders.

Selection Notes

Select this component when designing circuits that require both positive and negative boosted voltages from a low-voltage battery source. The fixed 1.1MHz frequency is suitable for applications prioritizing board space over ultra-low noise requirements. Evaluate thermal dissipation capabilities within the small DFN package for high-load scenarios.

Part Context

This part belongs to the LT3472 family of dual boost converters manufactured by Analog Devices. It is designed to replace discrete solutions offering improved integration and reduced bill of materials. The device complements other power management ICs in portable electronics by providing efficient voltage translation from lithium-ion cells.

Replacement Considerations

LT3472EDD#PBF serves as the primary lead-free version of the LT3472EDD series. Verify pinout compatibility if substituting with older non-PBF variants. No direct cross-model substitutes are documented in official public data.