S-8358H40MC-NUZT2G

Overview

The S-8358H40MC-NUZT2G is a step-up switching regulator controller manufactured by ABLIC Inc. It operates with a fixed output voltage of 4.0 V and supports an input voltage range from 0.9 V to 10 V. The device features a low quiescent current of 25.9 uA and utilizes PWM/PFM control modes for efficient power management. It functions within a temperature range of -40°C to +85°C and is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

• Integrates PWM/PFM hybrid control strategy for optimized efficiency across varying load conditions
• Features ultra-low standby current consumption suitable for battery-powered applications
• Supports wide input voltage range enabling compatibility with single-cell lithium-ion batteries

Applications

• Portable electronic devices requiring extended battery life
• Smartphones and mobile communication equipment
• Wearable technology and health monitoring devices
• IoT sensors and wireless modules

Procurement Notes

Verify the specific suffix NUZT2G against official ABLIC documentation to confirm pinout, marking codes, and tape/reel specifications. Ensure environmental compliance status matches project requirements. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when a fixed 4.0 V output is required from a variable input source. Consider the 25.9 uA quiescent current for sleep mode performance. Evaluate the SOT-23-5 footprint constraints against PCB layout requirements. Confirm that the external inductor and diode selections align with the internal controller's drive capabilities and switching frequency characteristics.

Part Context

This part belongs to the S-8358 series of step-up switching regulators designed for portable electronics. It complements other variants in the family offering different fixed output voltages. The series emphasizes low power consumption and small form factor integration, targeting applications where space and energy efficiency are critical design parameters.

Replacement Considerations

Direct substitutes include S-8358H33MC-NUZT2G (3.3V) and S-8358H50MC-NUZT2G (5.0V) if voltage tolerance allows. Verify pin compatibility and thermal performance when swapping between these variants.