S-1131B40UC-N4ZTFU

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

The S-1131B40UC-N4ZTFU is a positive voltage regulator from the S-1131 Series, manufactured by ABLIC Inc. It provides a fixed output voltage of 4.0 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 up to 300 mA. Key electrical parameters include a typical dropout voltage of 0.28 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 circuit for power management.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators 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 control of regulator operation to ensure extended battery life in portable applications.

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

• Constant-voltage power supply for DVD and CD-ROM drives
• Constant-voltage power supply for battery-powered devices
• Constant-voltage power supply for personal communication devices
• Constant-voltage power supply for notebook PCs

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

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm that the specific ordering suffix matches the required package type (SOT-89-5) and environmental specifications (Lead-free, Sn 100%, halogen-free). Ensure compatibility with system requirements regarding input voltage ranges and thermal dissipation limits before finalizing procurement orders.

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

Select this component when a stable 4.0 V rail is required with moderate current demands up to 300 mA. The SOT-89-5 package accommodates the ON/OFF pin functionality, which is essential for power management strategies. Consider the 70 dB ripple rejection for noise-sensitive circuits and verify that the external capacitor ESR falls within the optimal range to prevent oscillation.

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

This part belongs to the S-1131 Series, a line of high ripple-rejection and low dropout middle output current CMOS voltage regulators developed by ABLIC Inc. The series utilizes CMOS technology to achieve low current consumption and high output voltage accuracy. The S-1131B40UC-N4ZTFU specifically denotes the 4.0 V output variant housed in an SOT-89-5 package with positive logic ON/OFF control.

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

Consult the S-1131 Series product name list for alternative output voltages or packages. Verify functional equivalence if substituting with other LDOs, ensuring input/output voltage ranges, current capabilities, and stability requirements are met.