S-13R1F33-I4T1U3

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

The S-13R1F33-I4T1U3 is a positive voltage regulator IC from the ABLIC S-13R1 series, manufactured using CMOS technology. It provides a fixed output voltage of 3.3 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 uA typical. The unit supports reverse current protection and includes overcurrent, thermal shutdown, and enable control functions. It is housed in an SC-82AB package and operates between -40 C and +85 C.

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

• Integrates reverse current protection to prevent backflow when input voltage drops below output voltage.
• Provides high ripple rejection ratio for stable power supply in noisy environments.
• Includes comprehensive protection mechanisms such as overcurrent limit and thermal shutdown.

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

• Battery-powered portable electronic devices requiring low standby current
• Embedded systems needing stable 3.3 V logic supply
• Noise-sensitive analog circuits requiring clean power rails

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

Verify the specific suffix I4T1U3 against official ABLIC documentation to confirm pinout and tolerance specifications. Ensure compatibility with SC-82AB footprint requirements during PCB layout. Confirm RoHS compliance status through manufacturer datasheets before finalizing procurement orders.

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

Select this component for applications requiring ultra-low quiescent current and reverse current protection. Compare dropout voltage characteristics against load requirements to ensure regulation stability. Verify that the 150 mA output capacity meets peak demand without exceeding thermal limits in the chosen enclosure.

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

This part belongs to the S-13R1 series of low-dropout regulators designed for battery-operated equipment. The series emphasizes minimal current consumption while maintaining precise voltage regulation. It serves as a key power management solution for modern compact electronics where space and efficiency are critical constraints.

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

Check ABLIC's official substitution list for compatible parts within the S-13R1 family. Verify equivalent output voltage and current ratings before replacing. Ensure pin configurations match to avoid redesigning the printed circuit board assembly.