S-1200B21-A6T1U

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

The S-1200B21-A6T1U is a positive voltage regulator from the S-1200 Series, manufactured by ABLIC Inc. It provides a fixed output voltage of 2.1 V with an accuracy of ±1.0%. The device operates within an input voltage range of 2.0 V to 10.0 V and supports an output current of up to 150 mA. It features a typical dropout voltage of 0.08 V at 30 mA and consumes only 18 μA during operation. The regulator includes built-in overcurrent protection and an ON/OFF circuit for power management.

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

• Utilizes CMOS technology to achieve low dropout voltage and high ripple rejection capabilities.
• Incorporates a dedicated ON/OFF pin that significantly reduces current consumption when disabled.
• Features built-in overcurrent protection circuits to safeguard against excessive load currents.
• Compatible with small ceramic capacitors for both input and output stabilization.

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

• Power supply for battery-powered devices
• Power supply for personal communication devices
• Power supply for home electric appliances
• Power supply for cellular phones

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

Verify the specific package type and environmental code before ordering. Confirm the ON/OFF pin logic level requirements match the system design. Ensure input and output capacitor selections meet the specified ESR and capacitance values for stability. Check for any discontinuation notices or alternative part numbers if long-term availability is required.

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

Select this component for applications requiring precise 2.1 V regulation with minimal quiescent current. Consider the thermal dissipation limits when operating near maximum output currents. Verify that the input voltage remains within the specified range to ensure proper dropout performance. Evaluate the need for the ON/OFF functionality based on system power management strategies.

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

This part belongs to the S-1200 Series of high ripple-rejection low dropout regulators. It is designed using CMOS technology to offer low input and output capacitance requirements. The series is characterized by its high accuracy output voltage and low current consumption, making it suitable for portable electronic applications.

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

S-1200B21-M5T1x (SOT-23-5 package variant).

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

What is the logic level for the ON/OFF pin in the S-1200B21-A6T1U?

The 'B' suffix indicates positive logic, where a High signal turns the regulator ON and a Low signal turns it OFF.

Can ceramic capacitors be used with this regulator?

Yes, the S-1200 Series is designed to operate stably with ceramic capacitors of 0.1 μF or more for both input and output.