S-8520A30MC-AVPT2G

Overview

The S-8520A30MC-AVPT2G is a step-down switching regulator controller manufactured by ABLIC Inc. It operates with a fixed switching frequency of 180kHz and supports a maximum duty cycle of 100%. The device accepts a supply voltage (Vcc/Vdd) ranging from 2.5V to 16V. It features a single positive output configuration housed in an SOT-23-5 package. The component is designed for surface mount installation and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Supports PWM control or switchable PWM/PFM operation modes
• Enables 100% duty cycle operation for low dropout performance
• Includes enable pin functionality for power management

Applications

• Battery-powered portable electronic devices
• General-purpose DC-DC conversion circuits
• Embedded systems requiring efficient step-down regulation

Procurement Notes

Verify the specific suffix AVPT2G against official ABLIC documentation to confirm exact marking codes and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the SOT-23-5 package. Cross-reference RoHS compliance status with current environmental declarations prior to final procurement approval.

Selection Notes

Select this component when a non-synchronous buck controller with adjustable output via external feedback is required. The 180kHz frequency offers a balance between efficiency and passive component size. Verify that the external MOSFET selection aligns with the driver capabilities and the target load current requirements for the specific application design.

Part Context

This part belongs to the S-8520 series, which are dedicated switching regulator controllers rather than integrated converters. The series provides flexibility for designers to select external power switches. The manufacturer transitioned from Seiko Instruments to ABLIC Inc., maintaining the established product lineage and pinout compatibility.

Replacement Considerations

Direct replacements include other S-8520 variants with different output voltage settings or suffixes, such as S-8520A34MC-AVTT2U, provided the electrical parameters match the circuit requirements.