S-1111B38MC-NYXTFG

Overview

The S-1111B38MC-NYXTFG is a positive voltage regulator from the S-1111/1121 Series, manufactured by ABLIC Inc. It provides a fixed output voltage of 3.8 V with an accuracy of ±1.0%. The device operates within an input voltage range of 2.0 V to 6.5 V and supports an output current of up to 150 mA. Key electrical parameters include a typical dropout voltage of 0.20 V at 100 mA, a ripple rejection ratio of 70 dB at 1.0 kHz, and a current consumption of 35 μA during operation. It features built-in overcurrent protection and an ON/OFF control circuit.

Feature Summary

• Built-in low on-resistance transistor enables low dropout voltage and large output current capability.
• Integrated overcurrent protection circuit prevents load current from exceeding the output transistor's capacity.
• ON/OFF circuit allows for stopping internal operation to ensure extended battery life in power-off states.
• High ripple rejection performance minimizes noise impact on the regulated output voltage.

Applications

• Power supply for battery-powered devices
• Power supply for personal communication devices
• Power supply for home electric/electronic appliances
• Power supply for cellular phones

Procurement Notes

Verify the specific ordering suffix NYX against the manufacturer's official product name structure documentation to confirm pin configuration and environmental compliance. Confirm that the component meets RoHS standards and lead-free requirements as specified in the datasheet. Ensure compatibility with the SOT-23-5 package dimensions for PCB layout. Check for any discontinuance notifications or design restrictions associated with this series before finalizing procurement plans.

Selection Notes

Select this component when a fixed 3.8 V output is required with high accuracy and low quiescent current. Consider the S-1111 series specifically if the pinout configuration matches the system design requirements compared to the S-1121 series. Evaluate the thermal dissipation capabilities of the SOT-23-5 package under maximum load conditions. Ensure the application utilizes appropriate output capacitors to maintain stability and prevent oscillation.

Part Context

This part belongs to the S-1111/1121 Series of high ripple-rejection low dropout CMOS voltage regulators developed by Seiko Instruments Inc., now ABLIC Inc. The series utilizes CMOS technology to achieve low current consumption and high output voltage accuracy. The S-1111 variant differs from the S-1121 variant primarily in its pin configuration, while sharing similar electrical characteristics and package options.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer for alternative components within the S-1111/1121 series or other compatible LDO regulators.