MAX1586BETM+T

Overview

The MAX1586BETM+T is a high-efficiency, low-quiescent current power management integrated circuit (PMIC) designed for handheld and mobile devices. It integrates seven buck converters within a compact TQFN-EP-48 package. The device operates from an input voltage range of 2.6 V to 5.5 V and delivers up to 500 mA per output channel. Key electrical specifications include a typical quiescent current of 32 µA and a switching frequency of 1 MHz. The component supports fixed output voltages such as 1.8 V, 2.5 V, and 3.3 V, and features a shutdown mode for power conservation.

Feature Summary

• Integrates seven independent buck regulators in a single compact package
• Optimized for ultra-low standby power consumption in portable applications
• Supports flexible output voltage configurations via external resistors
• Includes thermal protection and shutdown control for system safety

Applications

• Handheld computing devices
• Mobile communication equipment
• Portable consumer electronics
• Battery-powered instrumentation systems

Procurement Notes

Verify the specific suffix and tape-and-reel quantity against the manufacturer's official ordering guide. Confirm that the TQFN-48-EP package matches the target PCB footprint and thermal pad requirements. Ensure the selected variant aligns with the required output voltage settings and current capabilities for the intended application design.

Selection Notes

Select this PMIC when multiple regulated rails are required from a single battery source. Evaluate the total output current demand against the 500 mA limit per channel. Consider the 1 MHz switching frequency for inductor size optimization. Verify compatibility with the 2.6 V minimum input voltage for the specific battery chemistry in use.

Part Context

This component belongs to the MAX1586 family of specialized power management ICs. It is engineered to replace discrete regulator solutions in space-constrained mobile designs. The integration of multiple buck converters reduces board area and simplifies the power distribution network for complex portable systems.

Replacement Considerations

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