S-1315C26-A6T2U3

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

The ABLIC S-1315C26-A6T2U3 is a CMOS-based positive voltage regulator IC from the S-1315 Series, featuring a 200 mA output current capability and an input voltage range of 1.4 V to 5.5 V. It provides a fixed output voltage of 2.6 V with ±1.0% accuracy. The device operates without an output capacitor for phase compensation, utilizing only an input ceramic capacitor of 0.1 μF or more. Key electrical parameters include a typical dropout voltage of 224 mV at 200 mA, a ripple rejection of 60 dB typ., and a quiescent current of 7 μA during operation. It incorporates built-in overcurrent protection and an ON/OFF control circuit.

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

• Capable of stable operation without an output capacitor, simplifying circuit design and reducing component count.
• Features a built-in discharge shunt function unavailable in this specific C-type variant, while maintaining constant current source pull-down functionality.
• Includes an integrated overcurrent protection circuit to safeguard the output transistor against excessive load currents and short circuits.

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

• Constant-voltage power supply for battery-powered devices
• Constant-voltage power supply for communication equipment
• Constant-voltage power supply for mobile phones
• Constant-voltage power supply for electronic modules

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

Verify the part number against official ABLIC documentation to confirm the specific 'C' type configuration, which lacks the discharge shunt function but includes the constant current source pull-down. Ensure that the HSNT-6 (1212) package dimensions match the target PCB land pattern. Confirm compliance with RoHS and halogen-free requirements as specified in the datasheet before finalizing procurement.

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

Select this component when a fixed 2.6 V output is required within the 1.4 V to 5.5 V input range. The C-type designation indicates the absence of the discharge shunt function, which may influence power-down behavior compared to A or B types. Consider the thermal dissipation limits of the HSNT-6 package if operating near the maximum output current or ambient temperature extremes.

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

This component belongs to the S-1315 Series, a family of low-dropout linear regulators developed by ABLIC Inc. using CMOS technology. The series is characterized by high accuracy, low current consumption, and the ability to operate without output capacitors. The S-1315C26-A6T2U3 specifically utilizes the HSNT-6 (1212) surface-mount package and represents a fixed-output variant within the broader product line.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult ABLIC directly for alternative recommendations or verify compatibility with other LDOs offering similar 2.6 V output and 200 mA current capabilities.

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

Does the S-1315C26-A6T2U3 require an output capacitor for stability?

No, the S-1315 Series is designed to operate stably without an output capacitor across the entire temperature range. An output capacitor is unnecessary, though one of 10 μF or less can be used if desired.

What is the function of the ON/OFF pin on this specific model?

The ON/OFF pin controls the operation of the regulator. Setting it to a high level activates the regulator, while a low level stops operation. For the C-type, the pin has an internal constant current source pull-down.

How does the C-type differ from the A-type regarding power-off behavior?

The C-type lacks the discharge shunt function found in the A-type. Consequently, when turned off, the output voltage decays slowly through internal resistors rather than being actively discharged to ground.