S-1206B28-M3T1U

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

The S-1206B28-M3T1U is a positive voltage regulator from the S-1206 Series, manufactured by ABLIC Inc. It provides a fixed output voltage of 2.8 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 a typical dropout voltage of 150 mV at 100 mA. The component is housed in a SOT-23-3 package and functions reliably across an ambient temperature range of -40°C to +85°C.

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

• Ultra-low current consumption for extended battery life
• Low dropout voltage enabled by low on-resistance transistor
• Built-in overcurrent protection circuit
• Compatible with small ceramic capacitors

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 specific part number matches the required 2.8 V output and SOT-23-3 package configuration. Confirm environmental compliance requirements, specifically checking if the 'U' suffix for lead-free and halogen-free status is necessary for the target application. Ensure the ordering suffix aligns with tape packing specifications as defined in the official datasheet.

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

Select this component when a fixed 2.8 V rail is needed with minimal quiescent current draw. Verify that the maximum load current does not exceed 250 mA and consider thermal dissipation limits in the SOT-23-3 package. Ensure input voltage remains within the 1.7 V to 6.5 V range and that external capacitor values meet stability requirements.

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

This device belongs to the S-1206 Series of CMOS voltage regulators designed for portable electronics. The series offers selectable output voltages from 1.2 V to 5.2 V in 0.05 V steps. It utilizes a P-channel MOSFET output transistor to achieve high efficiency and low dropout characteristics suitable for battery-operated systems.

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

S-1206B28-U3T1x (SOT-89-3 package)

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

What is the output voltage accuracy for the S-1206B28?

The output voltage accuracy is ±1.0%.

Does the S-1206B28-M3T1U include short-circuit protection?

Yes, it includes a built-in overcurrent protection circuit that limits the output current to protect against short circuits between the VOUT and VSS pins.