S-8521F18MC-BPDT2U

Overview

The S-8521F18MC-BPDT2U is a synchronous rectification step-down switching regulator manufactured by ABLIC Inc. It operates within an input voltage range of 2.5V to 16V and delivers a fixed output voltage of 1.8V. The device supports a maximum output current of 1A and features a typical quiescent current of 30uA. It utilizes a PWM control method with a switch frequency of 300kHz. The component is housed in an HSNT-8 (2030) package, measuring 3.0mm x 2.0mm x 0.5mm, and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Synchronous rectification topology for enhanced efficiency
• Compact HSNT-8 package design
• Fixed 1.8V output voltage configuration
• Integrated enable pin functionality

Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems needing low quiescent current
• Embedded applications utilizing 1.8V logic levels
• Industrial equipment with 2.5V to 16V supply rails

Procurement Notes

Verify the specific suffix BPDT2U against official ABLIC documentation to confirm package type and tape/reel specifications. Ensure compatibility with HSNT-8 footprint requirements during PCB layout. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity. Check for any recent product change notifications regarding marking or material composition updates.

Selection Notes

Select this component when a fixed 1.8V output is required from a 2.5V to 16V input source. The synchronous design suits applications prioritizing efficiency over cost-sensitive non-synchronous alternatives. Consider the 300kHz switching frequency for balancing EMI and external component size. Verify that the 1A output current meets the load requirements without exceeding thermal limits in the HSNT-8 package.

Part Context

This part belongs to the S-8521 series of synchronous step-down regulators from ABLIC. The series is characterized by high efficiency and compact packaging options suitable for space-constrained designs. The S-8521 series complements other ABLIC PMIC offerings by providing reliable DC-DC conversion for various industrial and consumer electronics applications.

Replacement Considerations

Direct substitutes include other ABLIC synchronous buck regulators with similar input ranges and 1.8V outputs, such as variants within the S-8521 family. Non-ABLIC equivalents must match the 1A current capability, 300kHz frequency, and HSNT-8 package dimensions for pin-to-pin compatibility.