LT3514EFE#PBF

Overview

The LT3514EFE#PBF is a triple step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.2V to 36V and provides three adjustable positive outputs, each capable of delivering up to 2A. The device features a synchronous buck topology with a fixed internal switch current limit. It supports a switching frequency range from 270kHz to 2.1MHz and includes shutdown functionality. The component is housed in a 24-lead TSSOP package with an exposed pad for thermal management.

Feature Summary

• Integrates three independent synchronous buck converters within a single compact package
• Supports high input voltages up to 36V for versatile power supply applications
• Features adjustable output voltages starting from a minimum reference of 0.8V
• Includes integrated shutdown control for system power management

Applications

• Multi-rail power distribution systems requiring simultaneous negative voltage generation
• Industrial equipment needing isolated or non-isolated auxiliary power rails
• Telecommunications infrastructure powering multiple logic levels
• Automotive electronics requiring robust input voltage handling

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm the package variant matches the required footprint, as the EFE designation specifies the 24-TSSOP form factor. Cross-reference the manufacturer's latest datasheet for any recent Pin Change Notices (PCN) regarding material or assembly modifications that may affect compatibility.

Selection Notes

Select this component when designing systems requiring three distinct regulated outputs from a single high-voltage source. Ensure the external inductor selection supports the desired output current without saturation. Verify that the PCB layout accommodates the thermal requirements of the exposed pad for adequate heat dissipation during continuous operation at maximum load conditions.

Part Context

This part belongs to the LT3514 family of triple step-down regulators designed for high-density power solutions. It complements other Analog Devices PMICs by offering multi-output capability in a small outline package. The series targets applications where board space is limited but multiple voltage rails are necessary for complex digital and analog circuitry.

Replacement Considerations

LT3514IFE#PBF: Identical electrical specifications with a different package option.