S-1323B45NB-N9ETFU

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

The S-1323B45NB-N9ETFU is a positive voltage regulator from the ABLIC S-1323 Series, utilizing CMOS technology. It provides a fixed output voltage of 4.5 V with an accuracy of ±1.0%. The device supports an output current of up to 150 mA and features a typical dropout voltage of 0.50 V at full load. Current consumption is 70 µA during operation and 0.1 µA in power-off mode. It includes built-in overcurrent protection and an ON/OFF control circuit. The component operates within an ambient temperature range of -40°C to +85°C and is housed in an SC-82AB package.

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 output current to prevent damage under overload conditions.
• 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 input and output stabilization due to low ESR requirements.

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

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

Verify the specific ordering suffix against the manufacturer's official product name structure documentation to confirm package type, environmental compliance, and tape specifications. Confirm that the SC-82AB package designation matches the required footprint for the target PCB design. Ensure compatibility with lead-free and halogen-free material requirements if specified by the end application standards.

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

Select this component when a fixed 4.5 V output is required with high accuracy and low quiescent current. Ensure the input voltage remains at least 1.0 V above the output voltage to maintain regulation. Verify that the thermal dissipation capabilities of the SC-82AB package are sufficient for the expected load current and ambient temperature conditions. Consider the ON/OFF pin logic level requirements for system control integration.

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. The series offers various fixed output voltages selectable in 0.1 V steps from 1.5 V to 5.5 V. It is designed for applications requiring small package sizes and high-density mounting, available in SNT-4A and SC-82AB packages. The series emphasizes low current consumption and robust protection features for portable electronics.

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

Public confirmed substitute part numbers: S-1323B45NB-N9ETFx (where x denotes specific tape/reel variations). Other S-1323 series variants with different output voltages or package types (e.g., SNT-4A) may serve as functional alternatives if electrical parameters and physical dimensions align with the design requirements.