LT3506IFE#PBF

Overview

The LT3506IFE#PBF is a dual monolithic buck switching regulator manufactured by Analog Devices Inc. It integrates two independent step-down converters in a single TSSOP-16 package with an exposed pad. The device accepts an input voltage range from 3.6 V to 25 V and provides adjustable output voltages starting from 0.8 V. Each channel delivers up to 1.6 A of output current. The internal switch operates at a fixed frequency of 575 kHz. The component supports junction temperatures from -40°C to +125°C and features a quiescent current of 3.8 mA.

Feature Summary

• Integrates two independent buck regulators within a compact surface-mount package
• Supports wide input voltage ranges for flexible power supply configurations
• Provides high continuous output current per channel for demanding loads
• Features adjustable output voltage control via external resistor networks

Applications

• Portable equipment requiring multiple regulated voltage rails
• Battery-powered systems needing efficient step-down conversion
• Industrial control modules with diverse power requirements
• Communication infrastructure powering mixed-signal circuits

Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with PCB footprint dimensions specified in the datasheet. Confirm RoHS compliance status through manufacturer declarations. Validate that the intended operating temperature range aligns with the component specifications. Cross-reference ordering information with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when space constraints require dual regulation channels in a small form factor. Consider the 575 kHz switching frequency for balancing efficiency and passive component size. Evaluate thermal performance due to the exposed pad requirement for heat dissipation. Assess input voltage stability against the minimum 3.6 V threshold. Compare output current capabilities against peak load demands to ensure adequate headroom.

Part Context

This part belongs to the LT3506 series of dual buck regulators designed for high-density power applications. It complements other Analog Devices PMIC solutions by offering integrated dual-channel functionality. The series targets designs requiring simplified bill-of-materials and reduced board area compared to discrete solutions.

Replacement Considerations

LT3506AEFE#PBF offers similar dual-channel buck regulation with potentially different electrical characteristics or packaging options. Verify pinout compatibility and thermal requirements before substitution.