S-T111B39MC-OGYTFU

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

The S-T111B39MC-OGYTFU is a linear low-dropout (LDO) voltage regulator manufactured by ABLIC Inc. It provides a fixed positive output voltage of 3.9 V with a maximum output current capability of 150 mA. The device features a high quiescent current specification of 50 µA and operates within an ambient temperature range of -40°C to +85°C. It utilizes a surface-mount SOT-23-5 package and exhibits a typical dropout voltage of 250 mV at rated load.

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

• Fixed positive output voltage regulation
• High efficiency with low quiescent current consumption
• Compact surface-mount packaging for space-constrained designs

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

• Battery-powered portable electronic devices
• Low-power sensor modules requiring stable voltage rails
• Embedded systems with strict power budget constraints

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

Verify the complete part number including suffixes against official ABLIC documentation to ensure correct voltage, package, and tape/reel specifications. Confirm RoHS compliance status and manufacturing origin through authorized distributors or direct manufacturer channels prior to procurement.

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

Select this component when a fixed 3.9 V rail is required with moderate current demands up to 150 mA. Ensure input voltage exceeds the output by at least the specified dropout voltage under maximum load conditions. Consider thermal dissipation requirements based on the SOT-23-5 package thermal resistance and ambient operating temperature limits.

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

This component belongs to the S-T111 series of linear regulators from ABLIC Inc., designed for low-power applications. The series offers various fixed output voltages and packages, targeting consumer electronics and industrial control systems where power efficiency and small form factors are critical design parameters.

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

Cross-reference with other ABLIC S-T111 series variants for different output voltages if system requirements change. Verify pin compatibility and thermal characteristics when substituting with similar LDOs from other manufacturers to ensure functional equivalence in the target application.