S-8356Q40MC-OYZT2U

Overview

The S-8356Q40MC-OYZT2U is a step-up switching controller manufactured by ABLIC Inc., designed for efficient power management in compact electronic systems. It operates within an input voltage range of 0.9V to 10V and delivers a fixed output voltage of 4V. The device supports a maximum switch current of 300mA and functions at a switching frequency of 250kHz. It features low quiescent current consumption of 25.9uA and integrates PWM/PFM control modes. The component is housed in a small SOT-23-5 package, suitable for surface-mount applications, and operates reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates PWM/PFM control modes for optimized efficiency across varying load conditions
• Features ultra-low quiescent current consumption to extend battery life in portable devices
• Supports wide input voltage range from 0.9V to 10V for flexible power source compatibility
• Includes built-in protection functions such as over-current and thermal shutdown

Applications

• Battery-powered portable electronics requiring efficient voltage boosting
• Mobile communication devices needing stable power supply under variable loads
• Wearable technology with strict space and power constraints
• IoT sensors operating on single-cell lithium-ion or lithium-polymer batteries

Procurement Notes

Verify the complete part number including suffixes against official ABLIC documentation to ensure correct output voltage and package configuration. Confirm RoHS compliance status and manufacturing date codes prior to order placement. Check lead times and minimum order quantities with authorized distributors, as availability may vary. Ensure storage conditions meet moisture sensitivity level requirements specified in the datasheet.

Selection Notes

Select this component when a fixed 4V output is required from a low-voltage input source up to 10V. Consider the 300mA switch current limit for load requirements and the 250kHz switching frequency for passive component sizing. Evaluate the SOT-23-5 package size against board space constraints. Compare quiescent current specifications with other boost controllers if ultra-low standby power is critical for the application.

Part Context

The S-8356 series represents ABLIC's line of high-efficiency step-up switching controllers designed for mobile and portable applications. This specific model belongs to the Q-series, indicating automotive-grade reliability standards. The S-8356 family offers integrated power switches and control logic in a compact footprint, reducing external component count compared to discrete solutions. It complements ABLIC's broader portfolio of PMICs for comprehensive power management strategies.

Replacement Considerations

Direct replacements include other S-8356 variants with matching 4V output and SOT-23-5 package, such as S-8356Q40MC-OYJT2U if pinout compatibility is confirmed. Cross-reference electrical parameters like switch current and quiescent current with alternative boost controllers from manufacturers like Texas Instruments or Analog Devices, ensuring package and functionality alignment.