S-1333D33-A4T2U3

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The S-1333D33-A4T2U3 is a fixed-output low-dropout (LDO) voltage regulator manufactured by ABLIC Inc. It provides a stable 3.3V output with a maximum load current of 300mA. The device operates from an input voltage range up to 5.5V and features a typical quiescent current of 28µA, with a maximum supply current of 38µA. It incorporates overcurrent protection and thermal shutdown mechanisms for enhanced reliability. The component is housed in a compact HSNT-1010-4 surface-mount package and supports an operating temperature range from -40°C to +85°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Ultra-low quiescent current consumption for extended battery life
• Integrated overcurrent and thermal shutdown protection circuits
• Compact HSNT-1010-4 surface-mount package design

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable electronic devices
• Low-power sensor node power supplies
• Microcontroller system voltage regulation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and electrical tolerances. Confirm RoHS compliance status and ensure the supplier provides valid traceability data. Check for any recent product change notices that may affect lead times or material specifications before finalizing procurement orders.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this regulator when a fixed 3.5V output is required alongside minimal standby current draw. Ensure the input voltage remains within the 5.5V absolute maximum rating. Verify that the HSNT-1010-4 footprint matches the PCB layout constraints. Consider the thermal performance under maximum load conditions to determine if additional board space is needed for heat dissipation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the S-1333 series of CMOS low-dropout regulators designed for high efficiency and low noise applications. The series offers various fixed output voltages and packaging options to suit different space and power requirements. The D33 variant specifically targets applications requiring a standard 3.3V logic level supply rail.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes include other ABLIC S-1333 variants with compatible output voltages and packages, such as S-1333C33-A4T2U3. Cross-brand replacements require matching the 300mA current capability, 5.5V input limit, and HSNT-1010-4 footprint.