S-8520A36MC-AVVT2U

Overview

The S-8520A36MC-AVVT2U is a step-down switching regulator controller from ABLIC, operating at a fixed frequency of 300 kHz with an input voltage range of 2.5 V to 16 V. It delivers a fixed output voltage of 3.6 V and features a typical quiescent current of 100 µA. The device utilizes synchronous rectification for enhanced efficiency and includes built-in protection mechanisms such as overcurrent protection and thermal shutdown. Packaged in a compact SOT-23-5 format, it supports surface-mount installation and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Synchronous rectification architecture for improved power conversion efficiency
• Integrated overcurrent protection and thermal shutdown circuitry
• Fixed 300 kHz switching frequency for optimized external component sizing
• Low quiescent current consumption for battery-powered applications

Applications

• Portable electronic devices requiring efficient power management
• Battery-operated equipment needing low standby current
• Embedded systems utilizing step-down voltage regulation
• Industrial control modules with moderate power requirements

Procurement Notes

Verify the specific suffix AVVT2U against official ABLIC documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the SOT-23-5 package. Cross-reference the part number with authorized distributors to confirm current availability status and lead times, as supply chain conditions may vary.

Selection Notes

Select this component when a fixed 3.6 V output is required from a 2.5 V to 16 V input source. The 300 kHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the 100 µA quiescent current for applications prioritizing energy efficiency. Verify that the SOT-23-5 package meets the spatial constraints of the design.

Part Context

This part belongs to the S-8520 series of step-down switching regulators by ABLIC. The series is characterized by high efficiency and compact packaging options suitable for space-constrained designs. The S-8520A variant typically denotes specific output voltage configurations within the broader product family.

Replacement Considerations

Check for direct pin-compatible substitutes within the S-8520 series offering different output voltages or frequencies. Evaluate alternative manufacturers' synchronous buck controllers with similar 300 kHz operation and 100 µA IQ specs. Ensure any replacement maintains the same input voltage range and protection features.