S-8520B35MC-ARUT2U

Overview

The S-8520B35MC-ARUT2U is a step-down switching regulator controller manufactured by ABLIC Inc. It operates within an input voltage range of 2.5V to 16V and delivers a fixed output voltage of 3.5V. The device features a switching frequency of 300kHz and maintains a typical quiescent current of 100uA. It is housed in a compact SOT-23-5 package, suitable for surface-mount applications with an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrated step-down DC-DC switching controller topology
• Fixed 3.5V output voltage capability
• Low power consumption design with 100uA quiescent current
• Compact SOT-23-5 surface mount packaging

Applications

• Battery-powered portable electronic devices
• General-purpose low-voltage power supply systems
• Embedded control circuits requiring stable 3.5V rails

Procurement Notes

Verify the specific suffix ARUT against official ABLIC documentation to confirm pinout and thermal characteristics. Confirm availability status as distribution channels may list obsolete or limited stock items. Ensure compatibility with existing PCB footprints before finalizing procurement orders.

Selection Notes

Select this component when a fixed 3.5V output is required without external feedback resistors. The 300kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the load current requirements fall within the controller's driver capabilities.

Part Context

This part belongs to the S-8520 series of switching regulators from ABLIC. The series is designed for efficient power management in portable electronics. The B35 designation indicates the specific fixed output voltage setting for this variant.

Replacement Considerations

Check for direct cross-references in ABLIC's product matrix. Verify pin-to-pin compatibility if substituting with other S-8520 variants. Ensure electrical parameters match the original design requirements.