S-13R1E28-I4T1U3

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

The S-13R1E28-I4T1U3 is a positive voltage regulator IC from the ABLIC S-13R1 series, manufactured using CMOS technology. It provides a fixed output voltage of 2.8 V with a maximum output current of 150 mA. The device features a low dropout voltage and high ripple rejection of 70 dB typical at 1 kHz. It operates within an input voltage range of 2 V to 5.5 V and maintains a quiescent current of 5 µA typical. The unit supports reverse current protection and includes overcurrent and thermal shutdown safeguards. It is designed for surface mount installation in compact packages.

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

• CMOS-based design ensuring low power consumption and stable regulation
• Integrated reverse current protection prevents backflow when input is lower than output
• High ripple rejection capability minimizes noise sensitivity in power lines
• Built-in thermal shutdown and overcurrent protection enhance operational safety

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

• Battery-powered portable electronic devices requiring efficient power management
• Embedded systems needing stable low-noise voltage rails for sensitive components
• Industrial control modules operating under variable input voltage conditions

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

Verify the specific package variant and tape-and-reel quantity directly with the manufacturer or authorized distributors before ordering. Confirm that the 2.8 V output tolerance aligns with your circuit requirements. Ensure compatibility with your PCB footprint for the designated surface-mount package. Request updated RoHS compliance documentation if required by your procurement standards.

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

Select this component when a fixed 2.8 V rail is needed with minimal static current draw. The 150 mA capacity suits moderate load applications without excessive heat generation. Verify that the input voltage remains above the minimum threshold while accounting for dropout characteristics under full load. Consider the thermal performance if the ambient temperature approaches the upper operational limit.

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

This part belongs to the S-13R1 series of low-dropout regulators from ABLIC Inc. The series is characterized by its use of advanced CMOS processes to achieve ultra-low quiescent current. These regulators are engineered for applications where power efficiency and space constraints are critical. The S-13R1 family offers various fixed output voltages to accommodate different logic levels and sensor requirements.

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

Direct replacements must match the 2.8 V output, 150 mA current rating, and SNT-4A or compatible package. Verify pinout compatibility to avoid PCB redesign. Check if alternative LDOs offer similar ripple rejection and dropout specifications. Ensure the substitute supports reverse current protection if that feature is essential to the system design.