MAX1959ETP

Overview

The MAX1959ETP is a power amplifier (PA) power-management IC designed for W-CDMA and N-CDMA cellular phone applications. It integrates an 800mA dynamically adjustable step-down converter and a 5mA Rail-to-Rail operational amplifier. The device operates within a supply voltage range of 2.6V to 5.5V and utilizes a 20-WQFN exposed pad surface-mount package.

Feature Summary

• Integrates a high-current step-down converter with dynamic adjustability for efficient PA power management
• Includes a low-power rail-to-rail operational amplifier for auxiliary circuit functions
• Optimized specifically for W-CDMA and N-CDMA mobile phone system requirements

Applications

• W-CDMA cellular phone power management
• N-CDMA cellular phone power management
• Mobile handset RF front-end power regulation

Procurement Notes

Verify component authenticity through authorized Analog Devices or Maxim Integrated distributors. Confirm the specific suffix and RoHS compliance status against the latest official datasheet, as availability may be restricted due to lifecycle status. Ensure the 20-WQFN footprint matches your PCB design constraints before procurement.

Selection Notes

Select this component for designs requiring integrated PA biasing and regulation in dual-mode W-CDMA/N-CDMA handsets. Evaluate the thermal performance of the exposed pad package for your application's power dissipation needs. Consider the operating voltage range compatibility with the system's battery profile and ensure the current capabilities meet the peak PA demands.

Part Context

This part belongs to the MAX1958/MAX1959 family of PA power-management ICs from Maxim Integrated. These devices are engineered to simplify the power architecture in mobile phones by combining multiple power stages into a single compact solution, reducing board space and component count compared to discrete implementations.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.