S-8358B32MC-NQRT2U

Overview

The S-8358B32MC-NQRT2U is a boost switching regulator controller from ABLIC, housed in an SOT-23-5 package. It operates with a fixed output voltage of 3.2 V and supports a switching frequency of 100 kHz. The device functions within an input voltage range of 900 mV to 10 V and maintains operation across a temperature range of -40°C to +85°C. It utilizes PWM/PFM control modes and features a low quiescent current of 25.9 µA.

Feature Summary

• Integrates PWM/PFM hybrid control for optimized efficiency across varying load conditions
• Supports wide input voltage ranges suitable for single-cell battery applications
• Provides fixed output voltage regulation without external feedback resistor networks

Applications

• Portable electronic devices requiring efficient step-up power conversion
• Battery-powered systems utilizing single-cell lithium-ion or lithium-polymer sources
• Low-power consumer electronics needing compact power management solutions

Procurement Notes

Verify the specific output voltage setting matches the target application requirements, as this variant provides a fixed 3.2 V output. Confirm that the SOT-23-5 package footprint aligns with the PCB design constraints. Ensure the operating temperature range covers the intended environmental conditions. Cross-reference the datasheet for recommended external component values to guarantee stable performance under expected load profiles.

Selection Notes

Select this component when a fixed 3.2 V output is required from a variable input source. Consider the 100 kHz switching frequency for balancing component size and efficiency. Evaluate the 25.9 µA quiescent current against standby power constraints. Compare against other S-8358 variants if different output voltages or control modes are necessary for the specific system architecture.

Part Context

This part belongs to the ABLIC S-8358 series of synchronous boost switching regulators. The series is designed for portable applications requiring high efficiency and small form factors. The S-8358 family offers various fixed output voltage options to accommodate different system rails while maintaining consistent performance characteristics and packaging standards.

Replacement Considerations

Check for other S-8358 variants with compatible output voltages if 3.2 V is not strictly required. Verify pin compatibility for direct replacement in existing designs. Review updated datasheets for any revisions in electrical specifications or recommended operating conditions.