S-1333B25-A4T1U3

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

The S-1333B25-A4T1U3 is a fixed-output linear voltage regulator from ABLIC's S-1333 series, manufactured using CMOS technology. It provides a nominal output voltage of 2.5 V with a maximum output current capability of 300 mA. The device supports an input voltage range up to 5.5 V and features a low dropout voltage of 0.36 V at 100 mA load. Quiescent current consumption is typically 38 µA, while standby current drops to 1 µA when the enable pin is deactivated. Integrated protection mechanisms include overcurrent limiting and thermal shutdown. The component operates within a temperature range of -40°C to +85°C and is housed in a compact HSNT-4 surface-mount package.

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

• CMOS-based construction ensures high accuracy and low power consumption
• Integrated reverse current protection prevents backflow into the input line
• Built-in overcurrent and thermal shutdown safeguards against fault conditions
• High ripple rejection ratio maintains stable output under noisy environments

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

• Portable battery-powered electronic devices requiring efficient power management
• Embedded systems utilizing microcontrollers or digital logic circuits
• Communication modules needing stable voltage regulation for signal integrity
• Industrial control equipment operating in varying environmental temperatures

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

Verify the specific suffix codes on the datasheet to confirm exact electrical tolerances and package variations before ordering. Ensure that the supply chain documentation matches the manufacturer's official part numbering system to avoid counterfeit components. Cross-reference the revision history for any updates to pin configurations or recommended external capacitor values.

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

Select this regulator when a fixed 2.5 V rail is required with moderate current demands up to 300 mA. Consider the low quiescent current for battery life optimization in portable applications. Evaluate the thermal performance based on the expected ambient temperature and PCB copper area to ensure reliable operation within the specified junction temperature limits.

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

This component belongs to the S-1333 series of low-dropout regulators designed by ABLIC Inc. The series emphasizes low current consumption and high reliability for consumer and industrial electronics. The HSNT-4 package offers a small footprint suitable for space-constrained printed circuit board layouts, supporting modern miniaturization trends in electronic design.

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

Direct substitutes may include other ABLIC models within the S-1333 family offering similar voltage and current ratings. Verify pin compatibility and thermal characteristics when considering cross-brand alternatives. Ensure that any replacement component meets the same input voltage range and protection feature requirements.