S-19999DA-S8T1U7

Overview

The S-19999DA-S8T1U7 is a boost switching controller manufactured by ABLIC Inc. It operates with a fixed switching frequency of 400 kHz and supports input voltages up to 8.50 V. The component is housed in an HTMSOP-8 surface-mount package, designed for compact power management applications requiring efficient voltage step-up conversion.

Feature Summary

• Integrated boost converter control logic
• Fixed 400 kHz switching frequency operation
• Compact HTMSOP-8 surface-mount packaging

Applications

• Battery-powered device voltage boosting
• Portable electronics power management
• General-purpose DC-DC step-up conversion circuits

Procurement Notes

Verify the specific datasheet revision and ordering suffixes directly with ABLIC or authorized distributors. Confirm RoHS compliance status and environmental declarations prior to final procurement decisions. Ensure the HTMSOP-8 footprint matches your PCB layout requirements exactly.

Selection Notes

Select this component when a fixed-frequency boost solution is required for inputs up to 8.50 V. The 400 kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the external inductor and diode ratings meet the target output current and voltage specifications for the intended application.

Part Context

This part belongs to the ABLIC S-19999 series of switching controllers. These devices are engineered for high-efficiency power conversion in space-constrained environments. The series focuses on providing reliable boost regulation with minimal external component count, suitable for modern portable electronic designs.

Replacement Considerations

No public substitute part numbers are confirmed in the provided documentation. Consult ABLIC technical support for direct replacements or cross-reference compatible boost controllers with matching 400 kHz frequency and HTMSOP-8 package constraints.