LT3500EMSE#PBF

Overview

The LT3500EMSE#PBF is a monolithic dual step-down DC/DC converter and linear regulator manufactured by Analog Devices Inc. It integrates two synchronous buck converters and one low-dropout linear regulator within a single package. The device accepts an input voltage range of 3V to 36V. The switching regulators provide up to 2A output current, while the linear regulator supports up to 100mA. Operating frequencies for the buck converters are adjustable from 100kHz to 1.5MHz. The component is housed in a 12-lead DFN surface-mount package.

Feature Summary

• Integrates two high-current synchronous step-down converters and one linear regulator
• Supports wide input voltage ranges suitable for industrial applications
• Features adjustable switching frequency for optimized efficiency and size
• Includes internal compensation and protection mechanisms

Applications

• Industrial power supply systems requiring multiple voltage rails
• Battery-powered equipment with wide input voltage variations
• Embedded control systems needing combined switching and LDO regulation
• Automotive electronics operating under varying load conditions

Procurement Notes

Verify the specific suffix and manufacturer documentation before procurement. Confirm that the part number matches the exact electrical specifications required for your design. Check for any obsolescence notices or lifecycle status updates directly from Analog Devices. Ensure compatibility with your assembly processes regarding the DFN package type. Cross-reference official datasheets for pinout and thermal requirements.

Selection Notes

Select this component when a compact solution combining both switching and linear regulation is necessary. Consider the thermal performance of the DFN package for your application's power dissipation needs. Evaluate the need for external components based on the desired switching frequency. Verify that the input voltage range aligns with your system's power source capabilities. Assess the total output current requirements against the integrated regulator limits.

Part Context

The LT3500 series belongs to Analog Devices' portfolio of mixed-signal power management ICs. It is designed to simplify power architecture by reducing the component count compared to discrete solutions. The EMSE variant specifically denotes the MSOP-10 or similar small outline package configuration depending on the exact revision, though the primary description often cites DFN. It serves as a consolidated power management solution for space-constrained designs.

Replacement Considerations

LT3500IDD#PBF