AUR9707AUGD

Overview

The AUR9707AUGD is a dual high-efficiency PWM step-down DC-DC converter manufactured by Diodes Incorporated. It integrates two independent synchronous buck converters within a single package, designed to provide efficient power regulation for multi-rail systems. The device operates with an internal switching frequency of 1.5MHz, enabling the use of compact external components. It features built-in synchronous power MOSFETs and internal compensators to minimize external part count. The converter supports adjustable output voltages and includes protection mechanisms such as soft start, under-voltage lockout, and thermal shutdown to ensure reliable operation in portable applications.

Feature Summary

• Dual independent synchronous buck converters integrated into a single package
• High efficiency operation through constant frequency peak-current mode architecture
• Internal 1.5MHz switching frequency allows for small surface mount inductors
• Built-in protection features including soft start, UVLO, and thermal shutdown

Applications

• Portable electronic devices requiring multiple voltage rails
• Battery-powered systems needing efficient step-down conversion
• Embedded systems with space-constrained PCB layouts
• Consumer electronics utilizing low-profile power management solutions

Procurement Notes

Verify component authenticity through authorized Diodes Incorporated distributors or certified supply chain partners. Confirm RoHS compliance status and specific packaging options prior to order placement. Review the latest datasheet for any potential product changes or end-of-life notifications. Ensure storage conditions meet moisture sensitivity level requirements to prevent damage during assembly.

Selection Notes

Select this component when dual isolated or non-isolated buck outputs are required from a single input source. The 1.5MHz frequency is suitable for designs prioritizing small passive component size over ultra-low noise. Verify that the required output current per channel does not exceed the device's rated limits. Consider the WDFN package dimensions for thermal management and board space constraints.

Part Context

The AUR9707AUGD belongs to the AUR970x series of power management ICs from Diodes Incorporated. This series focuses on high-efficiency step-down conversion for portable applications. Similar parts in the family include the AUR9705 and AUR9717, which offer varying numbers of channels and current capabilities. The AUR9707 specifically addresses needs for dual-channel regulation in compact form factors.

Replacement Considerations

Direct replacements may include other dual-channel buck converters from Diodes Incorporated such as the PAM2306 series, though pinouts and electrical characteristics must be verified. Cross-referencing with similar offerings from other manufacturers requires careful evaluation of switching frequency, package dimensions, and control loop stability.