LTC3413EFE#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3413EFE#PBF is a monolithic synchronous step-down switching regulator designed for DDR and DDR2 memory bus termination applications. It generates a precise 1.25V output from input voltages ranging from 2.25V to 5.5V, delivering up to 3A of continuous load current. Operating at a fixed 1MHz switching frequency, the device integrates power switches and control circuitry in a compact 16-TSSOP package with an exposed thermal pad. This configuration supports efficient voltage regulation while minimizing external component count.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Monolithic synchronous buck topology integrating internal power switches
• Optimized for generating stable DDR/DDR2 memory bus termination voltages
• Fixed 1MHz switching frequency enables use of small passive components
• Adjustable output voltage capability within specified operational range

Voltage Regulators - DC DC Switching Regulators Applications

• DDR SDRAM bus termination power supply
• DDR2 SDRAM bus termination power supply
• Low voltage point-of-load regulation for memory subsystems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm lot traceability and RoHS compliance status prior to integration. Review latest datasheet revisions for any parameter updates. Ensure storage conditions meet moisture sensitivity level requirements to prevent package damage during soldering processes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when designing systems requiring dedicated termination voltage for DDR or DDR2 memory interfaces. The 3A output capacity suits high-density memory modules. Verify that input voltage rails remain within the 2.25V to 5.5V operating window. Consider thermal performance due to the exposed pad requirement for adequate heat dissipation in enclosed environments.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LTC3413 family of DDR termination regulators manufactured by Analog Devices. Designed specifically to replace linear regulators in memory applications, offering significantly higher efficiency. The EFE suffix indicates a 16-lead TSSOP package with an exposed paddle for thermal management. This series addresses the power density demands of modern computing platforms.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other LTC3413 variants with different package options such as the LTC3413IMSE#PBF. Cross-reference pinouts and thermal characteristics carefully. Ensure replacement parts maintain the same 1.25V nominal output capability and 3A current rating for compatible memory termination designs.