LT3506AEDHD#PBF

Overview

The LT3506AEDHD#PBF is a dual monolithic step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6 V to 25 V and provides two adjustable output channels, each capable of delivering up to 1.6 A. The device utilizes a 1.1 MHz fixed switching frequency and features internal 2 A power switches. It is housed in a 16-lead DFN package with an exposed pad for thermal management. The operational temperature range extends from -40°C to +85°C, supporting surface-mount installation.

Feature Summary

• Dual current mode PWM architecture with synchronized oscillators running in opposite phases to minimize input ripple current
• Integrated high-side and low-side power switches rated for 2 A continuous operation per channel
• Adjustable output voltage capability allowing flexible configuration for various load requirements

Applications

• Two-stage step-down conversion from high input voltages to lower logic levels
• Powering multiple rails in embedded systems requiring independent regulation
• Applications necessitating reduced input capacitor size due to phase-interleaved operation

Procurement Notes

Verify the specific suffix #PBF indicates lead-free tin finish compliance with RoHS standards. Confirm the DFN-16 package dimensions match your PCB footprint design. Ensure thermal relief pads are adequate for heat dissipation given the exposed pad requirement. Check availability status as distribution may vary by region.

Selection Notes

Select this component when dual isolated or sequenced buck outputs are required from a single controller. The 1.1 MHz frequency allows for smaller passive components compared to lower frequency alternatives. Consider the 1.6 A per channel limit against peak load demands. The wide input range suits applications with varying supply sources.

Part Context

This part belongs to the LT3506 family of dual synchronous buck converters. It shares architectural similarities with other members like the LT3506IFE but differs in package type. The DFN form factor offers a compact solution for space-constrained designs while maintaining thermal performance through the exposed pad connection.

Replacement Considerations

LT3506AIDHD#TRPBF serves as a tape-and-reel alternative within the same electrical specification family.