LTC3822EMSE#PBF

DC DC Switching Controllers Overview

The LTC3822EMSE#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 supports output voltages from 600 mV to 4.45 V. The device delivers up to 20 A of output current through a single output channel. It functions at adjustable switching frequencies between 250 kHz and 750 kHz. The quiescent supply current is specified at 360 uA. The component is housed in a 10-lead MSOP package and is rated for operation within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Eliminates the need for external sense resistors, thereby improving power conversion efficiency and reducing component count.
• Integrates internal low-side N-channel MOSFET drivers to support compact synchronous buck converter designs.
• Features adjustable switching frequency capability to optimize the trade-off between size and performance.

DC DC Switching Controllers Applications

• Point-of-load regulation for processors and memory modules
• Power distribution systems in portable electronics
• Battery-powered equipment requiring efficient voltage step-down

DC DC Switching Controllers Procurement Notes

Verify the specific suffix EMSE against official documentation to confirm the MSOP package variant. Confirm RoHS compliance status directly with the manufacturer or authorized distributors. Ensure the ordering part number matches the exact pinout and thermal requirements for your PCB layout design.

DC DC Switching Controllers Selection Notes

Select this controller when designing single-output buck converters requiring high current density without external current sensing resistors. It is suitable for applications powered by 3.3 V rails or lithium-ion batteries where input voltages remain within the 2.75 V to 4.5 V window. Consider the MSOP package constraints for thermal management and board space availability.

DC DC Switching Controllers Part Context

This component belongs to the LTC3822 family of synchronous step-down controllers. It shares functional similarities with other members like the LTC3822EDD but differs in package type. The family is designed for efficient power management in mobile and industrial applications requiring precise voltage regulation.

DC DC Switching Controllers Replacement Considerations

Check for direct substitutes such as the LTC3822EDD-1#PBF if package compatibility allows. Verify that alternative components maintain the same no-sense resistor architecture and input voltage specifications.