MAX844ESA+T

Overview

The MAX844ESA+T is a synchronous step-down switching regulator manufactured by Analog Devices Inc./Maxim Integrated. It operates within an input voltage range of 2.5V to 10V and provides a single adjustable output. The device utilizes an 8-SOIC surface-mount package. Key electrical characteristics include a switching frequency of 250kHz, an output current capability of 23mA, and a minimum input voltage of 800mV for certain configurations. It supports operation across a temperature range of -40°C to +85°C.

Feature Summary

• Synchronous step-down architecture for high efficiency
• Wide input voltage operating range
• Compact 8-SOIC surface-mount packaging

Applications

• Battery-powered portable electronics
• PCMCIA card power systems
• General-purpose DC-DC conversion

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Check current availability as supply may be restricted or limited. Ensure the component matches the exact part number for pin compatibility and thermal requirements.

Selection Notes

Select this component for applications requiring a compact solution with a wide input voltage range. It is suitable for designs needing a single adjustable output from a battery source. Consider the 250kHz switching frequency for inductor size trade-offs. Verify that the 23mA output current meets the load requirements of the target circuit.

Part Context

This part belongs to the MAX844 series of ultra-thin DC-DC converters designed for space-constrained applications. It is categorized under Power Management ICs (PMIC) and specifically functions as a voltage converter. The series is known for integrating power switches to minimize external component count.

Replacement Considerations

Consult official substitution guides for compatible parts. Verify pinout and electrical specifications before replacing.