MAX20459ATJC/V+T

Power Management - Specialized Overview

The MAX20459ATJC/V+T is a switching voltage regulator and DC-DC host-charge emulator designed for high-voltage data line applications. It operates with a supply voltage range of 4.5V to 28V and supports USB 2.0 and USB 3.1 standards. The device features an output current capability of 3A and a switching frequency adjustable between 310kHz and 2.2MHz. It is housed in a TQFN-EP-32 package, suitable for surface mount technology, and functions within an operating temperature range of -40°C to 125°C.

Power Management - Specialized Feature Summary

• Integrates DC-DC conversion with host-charge emulation capabilities for high-voltage data lines
• Supports USB 2.0 and USB 3.1 communication protocols
• Features adjustable switching frequency from 310kHz to 2.2MHz for optimized efficiency

Power Management - Specialized Applications

• USB Type-C charge enumerator systems
• High-voltage data line power management
• Host-side charging emulation circuits

Power Management - Specialized Procurement Notes

Verify the specific suffix (V+ vs V+T) against the manufacturer's official datasheet to confirm packaging type, as tray versus tape-and-reel configurations may differ. Confirm the exact operating temperature grade and package variant matches the design requirements before finalizing procurement orders.

Power Management - Specialized Selection Notes

Select this component when designing systems requiring integrated DC-DC regulation alongside host-charge emulation for USB interfaces. Ensure the input voltage range of 4.5V to 28V aligns with the system power rails. Consider the thermal performance of the TQFN-EP-32 package for heat dissipation needs in compact designs.

Power Management - Specialized Part Context

This part belongs to the Maxim Integrated power management portfolio, specifically targeting specialized USB charging and data line applications. It combines power conversion with protocol handling, reducing the component count required for complex host-charging solutions compared to discrete implementations.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB footprints and electrical specifications if considering alternative devices from the same manufacturer family.