MAX844ESA+

Overview

The MAX844ESA+ is a charge pump power management IC manufactured by Analog Devices Inc./Maxim Integrated. It operates with an input voltage range of 2.5V to 10V and provides a single -2V output. The device is housed in an 8-pin SOIC package and is designed for surface mount installation. It functions as a special purpose regulator suitable for generating negative voltages from positive supply rails.

Feature Summary

• Generates negative output voltage from positive input supply
• Designed for cellular telephone transmitter applications
• Single output channel configuration

Applications

• Cellular telephone transmitters
• Charge pump circuits requiring negative voltage rails
• Special purpose regulator applications

Procurement Notes

Verify component status carefully, as the MAX844ESA+ may be listed as obsolete or have limited availability depending on the distributor. Confirm lead times and alternative sourcing options if current stock is restricted. Ensure compatibility with existing design specifications before procurement.

Selection Notes

Select this component when a compact solution for generating a -2V rail from a 2.5V-10V input is required. Consider the 8-pin SOIC package constraints and thermal performance. Verify that the single-channel output meets the system's power requirements for the specific application.

Part Context

This part belongs to the Maxim Integrated power management family, specifically focusing on charge pump regulators. It is distinct from linear regulators and switching converters, offering a simple topology for low-power negative voltage generation in portable electronics.

Replacement Considerations

Check for direct pin-compatible substitutes within the Maxim portfolio. Evaluate similar charge pump ICs with comparable input/output voltage ranges and package types if the MAX844ESA+ is unavailable.