MAX844ISA+T

Overview

The MAX844ISA+T is a charge pump voltage regulator IC manufactured by Analog Devices Inc./Maxim Integrated. It features a single output and is housed in an 8-SOIC package with a width of 0.154 inches (3.90mm). Designed as a cellular telephone transmitter voltage regulator, it utilizes a charge pump topology to generate the required supply voltage for RF transmission stages.

Feature Summary

• Integrated charge pump architecture for voltage regulation
• Single output configuration optimized for transmitter applications
• Surface-mount 8-SOIC packaging for compact board integration

Applications

• Cellular telephone transmitter voltage regulation
• RF power supply generation in mobile devices
• Charge pump based voltage step-up circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lot traceability prior to procurement. Ensure storage conditions meet moisture sensitivity level requirements to prevent package damage during soldering processes.

Selection Notes

Select this component when a dedicated charge pump regulator is required for cellular transmitter biasing. The 8-SOIC package suits space-constrained designs. Evaluate thermal performance and input voltage range compatibility with the specific battery or system rail powering the transmitter stage.

Part Context

This device belongs to the Maxim Integrated line of specialized power management ICs. It addresses the specific need for regulated voltage generation in portable communication equipment where efficiency and size are critical constraints for battery-operated systems.

Replacement Considerations

Check for pin-compatible alternatives within the same product family. Verify that substitute components maintain identical charge pump functionality and output voltage characteristics suitable for the original transmitter application.