S-1323B1JPF-N9PTFU

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

The S-1323B1JPF-N9PTFU is a CMOS voltage regulator from the S-1323 Series manufactured by ABLIC Inc. It provides a fixed positive output voltage of 1.85 V with an accuracy of ±1.0%. The device supports an output current of up to 150 mA and operates within an input voltage range of 2.0 V to 6.5 V. Key electrical characteristics include a typical ripple rejection of 70 dB at 1.0 kHz, a dropout voltage of 0.50 V typ., and a line regulation of 0.02% /V typ. Current consumption is 70 µA typ. during operation and 0.1 µA typ. in power-off mode. It features built-in overcurrent protection and an ON/OFF circuit.

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

• Built-in low on-resistance P-channel MOS FET output transistor enables low dropout voltage and high output current capability.
• Integrated overcurrent protection circuit limits load current to prevent damage to the output transistor.
• Dedicated ON/OFF pin allows for complete shutdown of internal circuits to minimize current consumption during standby.
• Compatible with small ceramic capacitors (1.0 µF or more) for both input and output stabilization.

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

• Constant-voltage power supply for battery-powered devices
• Constant-voltage power supply for personal communication devices
• Constant-voltage power supply for home electric appliances
• Constant-voltage power supply for cellular phones

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated in official documentation. Ensure ordering suffixes match specific package and environmental requirements. Check for obsolescence notices, as this series may be marked not recommended for new design. Validate datasheet revisions against procurement specifications.

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

Select this component for applications requiring a stable 1.85 V rail with moderate current demands. Ensure input voltage remains above the dropout threshold plus required headroom. Verify thermal dissipation capabilities within the SNT-4A package under maximum load conditions. Confirm compatibility with external capacitor ESR values to prevent oscillation. Consider the positive logic ON/OFF control scheme inherent to the 'B' product type.

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

This part belongs to the S-1323 Series of high ripple-rejection CMOS voltage regulators. It utilizes a compact SNT-4A package designed for high-density mounting. The series is characterized by low current consumption and high output voltage accuracy. It represents a legacy product line often used in established consumer electronics designs prior to newer iterations.

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

Consult official ABLIC documentation for confirmed substitute part numbers. Cross-reference output voltage, current capacity, and package dimensions. Verify functional equivalence regarding ON/OFF logic polarity and protection features before implementation.

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

What is the logic level for the ON/OFF pin on the S-1323B1JPF-N9PTFU?

The 'B' suffix indicates positive logic. The regulator turns ON when the ON/OFF pin voltage is high (≥ 1.5 V) and turns OFF when the voltage is low (≤ 0.3 V).

Can ceramic capacitors be used for input and output stabilization?

Yes, the S-1323 Series is designed to operate stably with ceramic capacitors of 1.0 µF or more, provided the Equivalent Series Resistance (ESR) is 10 Ω or less.