S-8520F26MC-BNLT2U

Overview

The S-8520F26MC-BNLT2U is a step-down DC-DC switching controller from ABLIC, designed for efficient power management in portable electronics. It operates with an input voltage range of 2.7V to 5.5V and provides a fixed output voltage of 2.5V. The device features a low quiescent current of 100µA and supports a switching frequency of 300kHz. Packaged in a compact SOT-23-5 format, it integrates protection mechanisms including overcurrent protection and thermal shutdown to ensure reliable operation under varying load conditions.

Feature Summary

• Integrates overcurrent protection and thermal shutdown for enhanced system safety
• Utilizes synchronous rectification architecture for improved conversion efficiency
• Supports low quiescent current operation to extend battery life in portable devices

Applications

• Portable consumer electronics requiring efficient step-down regulation
• Battery-powered handheld devices needing low standby current
• Embedded systems utilizing single-cell lithium-ion or lithium-polymer batteries

Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm RoHS compliance status via official documentation before integration. Check for end-of-life notices as availability may be restricted. Ensure proper handling procedures are followed during storage and assembly to maintain device integrity.

Selection Notes

Select this controller when a fixed 2.5V output is required from a 5V source. Consider the SOT-23-5 package size constraints against available PCB space. Evaluate the 300kHz switching frequency against electromagnetic interference requirements. Compare quiescent current specifications against other options if ultra-low power standby is critical.

Part Context

This component belongs to the S-8520 series of synchronous buck controllers by ABLIC. The series is characterized by high efficiency and compact packaging suitable for space-constrained applications. The F26 suffix typically denotes specific electrical characteristics such as output voltage and operating temperature range within the family lineup.

Replacement Considerations

Direct substitutes include other S-8520 variants with compatible pinouts and electrical parameters. Verify that alternative components match the 2.5V output requirement and SOT-23-5 footprint. Cross-reference thermal and current protection thresholds to ensure equivalent system reliability.