S-19255C28A-M5T1U4

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

The S-19255C28A-M5T1U4 is an automotive-grade positive voltage regulator from ABLIC Inc., utilizing CMOS process technology. It provides a fixed output voltage of 2.8 V with ±2.0% accuracy across the -40°C to +125°C temperature range. The device supports up to 300 mA output current and operates within a 1.5 V to 5.5 V input voltage range. Key electrical parameters include a typical dropout voltage of 120 mV, ripple rejection of 80 dB at 1.0 kHz, and current consumption of 55 μA during operation. It features built-in overcurrent protection and thermal shutdown circuits.

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

• Built-in overcurrent protection circuit limits output transistor current.
• Built-in thermal shutdown circuit activates at approximately 175°C junction temperature.
• ON/OFF pin controls internal circuit and output transistor for power management.
• Discharge shunt function available for rapid output capacitor discharge.

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

• Engine control units
• Transmission systems
• Suspension systems
• ABS modules
• EV/HEV/PHEV related devices

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

Verify that the specific ordering suffix matches the required package type (SOT-23-5) and functional configuration (Series C: Pull-down resistor available, Discharge shunt unavailable). Confirm compliance with AEC-Q100 Grade 1 requirements for automotive deployment. Contact sales representatives for details on reliability specifications and thermal simulation services before finalizing procurement.

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

Select this component when a fixed 2.8 V output is required for automotive applications. Ensure the application environment stays within the -40°C to +125°C operating temperature range. Verify that the load current does not exceed 300 mA and that input voltage remains between 1.5 V and 5.5 V. Consider the Series C configuration if a pull-down resistor on the ON/OFF pin is desired but discharge shunt functionality is not needed.

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

This part belongs to the S-19255 Series, designed for high-density mounting in vehicle equipment. It is developed using CMOS process technology to achieve high-accuracy output voltage and low current consumption. The series includes multiple product types (A, B, C, D) differing in ON/OFF logic and internal resistor configurations, packaged in SOT-23-5 or HSNT-4(1010)B formats.

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

Other parts in the S-19255 series with different output voltages or product types (e.g., S-19255C18A-M5T1U4) may serve as functional substitutes if voltage levels and internal circuit configurations align with design requirements.

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

What is the behavior of the ON/OFF pin for the Series C type?

For the Series C type, the ON/OFF pin has an internal pull-down resistor available. When floating, the VOUT pin is set to the VSS level.

Does the S-19255C28A-M5T1U4 have a discharge shunt function?

No, the Series C type does not have a built-in discharge shunt function. The output voltage decreases through internal divided resistors when turned off.