S-1206B21-U3T1G

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

The S-1206B21-U3T1G is a positive voltage regulator from the S-1206 Series, manufactured by ABLIC Inc. It provides a fixed output voltage of 2.1 V with an accuracy of ±1.0%. The device supports an output current of up to 250 mA and operates within an input voltage range of 1.7 V to 6.5 V. It features ultra-low current consumption of 1.0 µA (typ.) during operation and includes built-in overcurrent protection. The component is housed in a SOT-89-3 package and is designed for use in portable equipment.

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

• Ultra-low current consumption of 1.0 µA (typ.) during operation
• Built-in low-on-resistance transistor for low dropout voltage
• Integrated overcurrent protection circuit to prevent load current exceeding capacity
• Compatible with small I/O capacitors, including ceramic types of 0.1 µF or more

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

• Constant-voltage power supply for battery-powered devices
• Constant-voltage power supply for cellular phones
• Constant-voltage power supply for portable equipment

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

Verify that the environmental code 'G' corresponds to lead-free specifications as defined by ABLIC Inc., noting that 'U' indicates Sn 100% halogen-free. Confirm the package type is SOT-89-3 and the tape packing specification matches U3T1. Ensure the part number suffix aligns with the required output voltage of 2.1 V and verify RoHS compliance status through official manufacturer documentation before procurement.

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

Select this component when a fixed 2.1 V output is required with high accuracy and low quiescent current. The SOT-89-3 package offers higher power dissipation capabilities compared to smaller packages, suitable for applications requiring up to 250 mA output current. Ensure input voltage remains within 1.7 V to 6.5 V and consider thermal management due to power dissipation limits at high currents.

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

The S-1206B21-U3T1G belongs to the S-1206 Series of CMOS voltage regulators developed by ABLIC Inc. This series is characterized by ultra-low current consumption, low dropout voltage, and high-accuracy output voltages selectable in 0.05 V steps. The series utilizes CMOS technology to achieve low on-resistance in the output transistor, enabling efficient performance in portable electronic devices.

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

Other parts in the S-1206 Series with different output voltages or packages may serve as alternatives if electrical parameters match. Verify compatibility regarding output voltage accuracy, current capacity, and package dimensions. Consult ABLIC Inc. for specific cross-reference information or updated product availability.