S-1111B35MC-NYUTFG

Overview

The S-1111B35MC-NYUTFG is a positive voltage regulator from the S-1111/1121 Series developed by ABLIC Inc. It provides a fixed output voltage of 3.5 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 0.24 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 P-channel MOS FET output transistor for low dropout performance
• Integrated ON/OFF circuit to minimize current consumption during power-off states
• Built-in overcurrent protection circuit to prevent load current exceeding capacity
• High ripple rejection capability utilizing internal phase compensation

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 component authenticity through official manufacturer channels or authorized distributors. Confirm that the specific ordering suffix matches the required pin configuration and environmental specifications. Ensure compliance with RoHS and halogen-free requirements as indicated in the datasheet. Validate package integrity upon receipt to ensure suitability for surface mount assembly processes.

Selection Notes

Select this component when a fixed 3.5 V output is required with high accuracy. Consider the S-1111 series pinout specifically, as it differs from the S-1121 series. Evaluate thermal dissipation constraints given the SOT-23-5 package limitations. Ensure external capacitors meet ESR requirements for stability. Verify that the application does not exceed absolute maximum ratings for input voltage or power dissipation.

Part Context

This part belongs to the S-1111/1121 Series of CMOS voltage regulators manufactured by Seiko Instruments Inc., now associated with ABLIC Inc. The series is characterized by low dropout voltage and high output voltage accuracy. The S-1111 variant utilizes a specific pin configuration distinct from the S-1121 series, which must be accounted for during PCB layout design.

Replacement Considerations

S-1111B35MC-N2UTFG (S-1121 Series equivalent with different pinout)