MAX641AESA+T

Voltage Regulators - DC DC Switching Regulators Overview

The MAX641AESA+T is a synchronous step-up switching regulator manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates with an input voltage range of 2V to 16.5V and provides a positive adjustable output, typically fixed at 1.31V or 5V. The device delivers up to 450mA of switch current and features a switching frequency of 45kHz. Packaged in an 8-SOIC (0.154", 3.90mm wide) surface-mount enclosure, it functions within a temperature range of 0°C to 70°C. This component is classified as a DC-DC switching regulator designed for efficient voltage boosting applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous step-up topology for high efficiency
• Wide input voltage range supporting diverse power sources
• Adjustable output configuration for flexible system design

Voltage Regulators - DC DC Switching Regulators Applications

• RS-485 adapter circuits requiring data line conversion
• Deriving regulated voltages from 8V to 15V input sources
• Inductorless switching regulator boost applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and package variant against the official datasheet to ensure compatibility with the intended PCB footprint and thermal requirements. Confirm that the operating temperature range aligns with the environmental conditions of the final assembly. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, synchronous boost solution is required for inputs between 2V and 16.5V. Consider the 450mA current limit and 45kHz frequency for filtering requirements. Ensure the 8-SOIC package fits the spatial constraints. Evaluate if the adjustable output capability meets the specific voltage needs of the load compared to fixed alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MAX641 series of switching regulators. It is distinct from the MAX6241AEPA+, which is a precision voltage reference, not a switching regulator. The MAX641 series focuses on step-up conversion, whereas other Maxim parts may handle linear regulation or reference generation. Understanding this distinction prevents incorrect substitution in power management designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitutes include MAX641ACSA+. Verify pinout compatibility and electrical specifications before replacement.