S-8357B33UA-NIST2U

Overview

The S-8357B33UA-NIST2U is a positive output step-up DC-DC controller IC manufactured by ABLIC Inc. It operates within an input voltage range of 0.9V to 10V and provides a fixed 3.3V output. The device features a maximum switching frequency of 115kHz and supports up to 80mA output current. It utilizes CMOS technology and is housed in a PSSO3 package, specifically SOT-89-3. The component is designed for efficient power management in portable applications.

Feature Summary

• Boost topology for stepping up low input voltages
• Fixed 3.3V output regulation
• CMOS process technology for low power consumption

Applications

• Portable electronic devices requiring step-up conversion
• Battery-powered systems with low input voltage
• General purpose DC-DC power management circuits

Procurement Notes

Verify the exact package type against the datasheet, as some sources list SOT-89-3 while others may reference different form factors. Confirm RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Ensure the ordering suffix matches the required reel quantity specifications.

Selection Notes

Select this component when a fixed 3.3V output is required from inputs ranging down to 0.9V. Consider the 115kHz switching frequency for EMI constraints and the 80mA current limit for load requirements. Verify that the SOT-89-3 package fits the PCB layout constraints compared to other S-8357 variants.

Part Context

This part belongs to the ABLIC S-8357 series of switching controllers. It is distinct from the S-8353 series which may offer different current capabilities or packaging options like SOT-23-5. The S-8357 series focuses on high-efficiency boost conversion with specific output voltage options.

Replacement Considerations

S-8357H36MC-NMVT2G is listed as a comparable boost regulator in the same series. Verify output voltage and package compatibility before substitution.