S-8352A40MC-K2ZT2U

Overview

The S-8352A40MC-K2ZT2U is a positive output step-up DC-DC controller IC manufactured by ABLIC Inc. It operates in a Boost topology with a fixed switching frequency of 100 kHz and utilizes PFM control for efficiency optimization. The device features a low quiescent current of 23.2 uA, supporting extended battery life in portable applications. It accepts an input voltage range up to 10 V and provides a regulated output voltage of 4.0 V. The component is housed in a compact SC-74A (SOT-753) surface-mount package, suitable for space-constrained designs requiring efficient power management.

Feature Summary

• Integrates a high-efficiency PFM step-up controller optimized for low-power operation
• Features ultra-low quiescent current consumption to maximize battery runtime
• Provides stable regulated output voltage with minimal external component requirements

Applications

• Battery-powered portable electronic devices
• Low-power sensor nodes and IoT modules
• Consumer electronics requiring efficient voltage boosting from single-cell sources

Procurement Notes

Verify the exact ordering suffix K2ZT2U against the manufacturer's latest datasheet to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors or ABLIC Inc., as supply chain conditions may vary. Ensure compatibility with your PCB footprint for the SC-74A package before finalizing procurement orders.

Selection Notes

Select this component when a fixed 4.0 V output is required from a variable input source within the specified range. The 100 kHz switching frequency balances component size and efficiency. Consider the 23.2 uA quiescent current if standby power consumption is critical. Ensure the external inductor and diode ratings exceed the maximum expected load current and input voltage stresses for reliable operation.

Part Context

This part belongs to the S-8352 series of switching controllers from ABLIC Inc., designed for general-purpose power management in portable equipment. The series offers various fixed output voltages and packaging options. The S-8352A40MC variant specifically targets applications needing a 4.0 V boost from lower input voltages, utilizing the SC-74A package for compact integration.

Replacement Considerations

Check for direct pin-compatible alternatives within the S-8352 family with different output voltages if system requirements change. Verify electrical parameters such as switching frequency and quiescent current against other manufacturers' boost controllers to ensure functional equivalence without redesigning the passive components.