S-1318C28-M5T1U4

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

The S-1318C28-M5T1U4 is a positive voltage regulator IC from ABLIC, developed using CMOS technology. It features super low current consumption of 95 nA typical during operation and 2 nA typical during power-off. The device provides a fixed output voltage of 2.8 V with an accuracy of ±1.0% at +25°C. It supports an input voltage range from 1.7 V to 5.5 V and can deliver up to 100 mA output current when VIN ≥ VOUT(S) + 1.0 V. The dropout voltage is typically 45 mV at IOUT = 10 mA. It includes built-in overcurrent protection and an ON/OFF control circuit. The component operates within a temperature range of -40°C to +85°C and is housed in an SOT-23-5 package.

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

• Ultra-low current consumption for extended battery life in portable devices
• High-accuracy fixed output voltage regulation
• Built-in overcurrent protection circuit for output safety
• ON/OFF control pin allows for active state management and deep sleep modes

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

• Constant-voltage power supply for battery-powered devices
• Power supply for portable communication equipment
• Power supply for digital cameras and digital audio players
• Constant-voltage power supply for home electric appliances

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

Verify the specific product type suffix 'C' which indicates unavailable discharge shunt function but available constant current source pull-down. Confirm the package code M5T1 corresponds to the SOT-23-5 form factor. Ensure compatibility with ceramic capacitors of 1.0 μF or more for both input and output stabilization as specified in the datasheet requirements.

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

Select this model for applications requiring a stable 2.8 V rail with minimal quiescent current draw. The C-type variant is suitable where internal pull-down on the ON/OFF pin is desired without the discharge shunt feature. Designers must account for thermal dissipation limits when operating near maximum output currents. Verify that the input voltage remains above the dropout threshold under all load conditions.

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

This component belongs to the S-1318 Series of low-dropout regulators manufactured by ABLIC Inc. The series is characterized by its CMOS process technology, enabling high efficiency and low power usage. The S-1318C28-M5T1U4 specifically denotes the C-type functional configuration with a 2.8 V output setting in the SOT-23-5 package.

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

Direct substitutes within the same series include S-1318A28-M5T1U4, S-1318B28-M5T1U4, and S-1318D28-M5T1U4. Selection among these depends on the required ON/OFF pin behavior, specifically regarding the availability of the discharge shunt function and constant current source pull-down capabilities.