S-1312B12-A4T1U3

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

The ABLIC S-1312B12-A4T1U3 is a CMOS linear voltage regulator (LDO) from the S-1312 series, designed for ultra-low current consumption applications. It provides a fixed output voltage of 1.2 V with a maximum output current of 150 mA. The device operates within an input voltage range of 1.8 V to 5.5 V and features a typical dropout voltage of 220 mV at full load. Quiescent current is specified at 0.6 µA typ., ensuring minimal power loss in standby modes. It includes built-in protection circuits for overcurrent, thermal shutdown, and reverse current flow. The component is housed in a compact HSNT-1010-4 package and supports operation across a temperature range of -40°C to +85°C.

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

• Ultra-low quiescent current consumption of 0.6 µA typ. for extended battery life
• Integrated reverse current protection circuit prevents backflow when input is lower than output
• Compact HSNT-1010-4 package design suitable for space-constrained portable devices
• Built-in overcurrent and thermal shutdown protection ensures operational reliability

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

• Battery-powered portable electronic devices requiring low standby current
• Wearable electronics and smart sensors with strict power budget constraints
• Mobile communication modules and IoT nodes utilizing LDO regulation
• Consumer appliances needing stable 1.2 V logic supply rails

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

Verify the specific suffix codes against official ABLIC documentation to confirm pinout compatibility and package variations. Ensure that the HSNT-1010-4 footprint matches your PCB layout requirements precisely. Confirm RoHS compliance status through the manufacturer's latest environmental declarations before finalizing procurement orders.

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

Select this component when a fixed 1.2 V output is required with minimal static power draw. The 150 mA capacity suits moderate load applications, while the low dropout characteristic allows efficient operation near input limits. Consider the HSNT-1010-4 package dimensions during mechanical integration. Verify that the operating temperature range meets your system's environmental specifications.

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

This part belongs to the ABLIC S-1312 series of CMOS linear regulators, which are engineered for high efficiency and low noise performance. The series is widely used in consumer electronics and industrial systems where power conservation is critical. The S-1312B12 variant specifically targets applications requiring a precise 1.2 V rail with enhanced protection features compared to standard LDOs.

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

Direct replacements include other ABLIC S-1312 series parts with identical output voltages and packages, such as S-1312B18 or S-1312B25, provided the voltage requirement differs. Cross-brand equivalents must match the 1.2 V output, 150 mA current rating, and HSNT-1010-4 footprint. Verify reverse current protection availability in alternative components to maintain system safety.