LTC3831EGN-1#PBF

Special Purpose Regulators Overview

The LTC3831EGN-1#PBF is a high-power synchronous switching regulator controller designed for DDR memory termination, manufactured by Analog Devices Inc. It operates with an input voltage range of 3 V to 8 V and supports output voltages from 0.4 V to 8 V. The device delivers up to 20 A of output current through a single output channel. It features programmable fixed-frequency operation between 100 kHz and 500 kHz, with external clock synchronization capability. The controller utilizes a narrow SSOP-16 package and includes overtemperature protection and low shutdown current characteristics.

Special Purpose Regulators Feature Summary

• Supports DDR memory termination applications with output voltage tracking capabilities
• Eliminates the need for current sense resistors in the power path
• Drives all N-channel external MOSFETs for high efficiency performance

Special Purpose Regulators Applications

• DDR memory termination power supplies
• High-current point-of-load regulation
• Low voltage DC/DC conversion systems

Special Purpose Regulators Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when sourcing components. Confirm that the EG grade corresponds to the extended temperature range specifications required for your application environment. Ensure compatibility with the 16-pin SSOP footprint during PCB layout verification.

Special Purpose Regulators Selection Notes

Select this component for applications requiring high current delivery without sense resistor losses. Consider the 3 V to 8 V input constraint when designing the power stage. Evaluate the thermal performance within the SSOP-16 package limits for sustained 20 A loads.

Special Purpose Regulators Part Context

This part belongs to the LTC3831-1 series of synchronous buck controllers. It is distinct from integrated converters as it requires external MOSFETs. The device focuses on efficiency and simplicity for memory termination rather than multi-phase interleaving found in other series members.

Special Purpose Regulators Replacement Considerations

Check for direct pin-compatible alternatives within the same family if supply constraints exist. Verify that any substitute maintains the 3 V to 8 V input range and 20 A current capability.