S-13R1H21-I4T1U3

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

The S-13R1H21-I4T1U3 is a positive voltage regulator IC from the ABLIC S-13R1 series, manufactured using CMOS technology. It provides a fixed output voltage of 2.1 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 low quiescent current of 5 µA typical. The component supports surface mount installation in an SNT-4 package and functions reliably across a temperature range of -40°C to +85°C.

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

• Integrated reverse current protection prevents backflow from output to input.
• High ripple rejection ratio ensures stable power delivery under varying conditions.
• Low quiescent current consumption extends battery life in portable applications.

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

• Battery-powered portable electronic devices
• Embedded systems requiring stable low-voltage rails
• IoT sensor nodes with strict power constraints

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

Verify the specific output voltage tolerance and package variant against the official datasheet before procurement. Confirm RoHS compliance status and ensure the ordering suffix matches the required reel quantity. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

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

Select this component for designs requiring a fixed 2.1 V rail with minimal static power draw. Ensure the input voltage remains above the minimum threshold while accounting for dropout voltage at peak load currents. Verify thermal dissipation capabilities if operating near maximum ambient temperatures.

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

This regulator belongs to the S-13R1 series, which utilizes advanced CMOS processes to achieve high efficiency and compact form factors. The series is designed for applications demanding precise voltage regulation with minimal external component requirements, supporting modern miniaturization trends in consumer electronics.

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

Check for direct pin-compatible alternatives within the same S-13R1 family offering different fixed voltages. Verify that substitute parts maintain identical reverse current protection and package dimensions for seamless integration without PCB redesign.