LTC3822EDD-1#PBF

DC DC Switching Controllers Overview

The LTC3822EDD-1#PBF is a synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 2.75 V to 4.5 V and delivers up to 20 A of output current. The adjustable output voltage spans from 600 mV to 4.45 V. The device supports switching frequencies between 250 kHz and 750 kHz and features a quiescent supply current of 360 uA. It is housed in a DFN-12 package and functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Eliminates the need for external current sense resistors to reduce power loss and improve efficiency.
• Integrates low-side N-channel MOSFET drivers for simplified board layout and reduced component count.
• Supports phase-locked loop (PLL) synchronization to multiple controllers for multiphase operation.

DC DC Switching Controllers Applications

• Point-of-load regulation for high-performance processors and FPGAs
• Power supplies for telecommunications equipment
• Battery-powered systems utilizing single-cell lithium-ion inputs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the DFN-12 package dimensions match your PCB footprint requirements. Ensure the supplier provides valid traceability documentation for the Analog Devices manufacturer part number. Check for any specific handling instructions related to the exposed pad thermal design.

DC DC Switching Controllers Selection Notes

Select this controller when designing for low-voltage, high-current applications requiring minimal component count. It is suitable for systems where eliminating sense resistors improves overall efficiency. Consider the 2.75 V minimum input voltage when using single-cell lithium-ion batteries. Evaluate the 20 A output capability against peak load demands to ensure adequate thermal management.

DC DC Switching Controllers Part Context

This component belongs to the LTC3822 family of no-RSENSE synchronous buck controllers. It is designed to simplify power supply designs by integrating gate drivers and control logic. The DFN-12 package offers a compact solution for space-constrained applications while providing efficient thermal dissipation through the exposed pad.

DC DC Switching Controllers FAQ

Does the LTC3822EDD-1#PBF include internal MOSFETs?

No, it is a controller that requires external N-channel MOSFETs for the high-side and low-side switches.

What is the purpose of the '1' suffix in the part number?

The suffix typically denotes a specific version or revision of the device, often related to pinout or electrical characteristics defined by the manufacturer.