Compact, efficient, and automotive-grade, the device enables lighter wiring, reduced standby current, and more reliable power for ECUs, sensors, and safety-critical electronics in modern vehicles.
ABLIC Inc., has introduced the S-19230/1 Series, a high-withstand voltage LDO linear regulator IC designed for the next wave of 48V automotive auxiliary batteries. The device achieves an industry-low 2.0µA operating current, addressing growing demands for energy-efficient vehicle electronics.
With vehicles integrating more ECUs, infotainment systems, and always-on sensors, auxiliary batteries are shifting from 12V to 48V systems. This higher voltage slashes current requirements to one-quarter, enabling lighter wire harnesses, reduced copper use, and improved fuel and power efficiency. Key Features include:
- Industry-low 2.0µA operating current; 0.1µA power-off current
- Wide input voltage: 6–66V (3V min. at ≤10mA), withstands surges up to 80V
- Adjustable output voltage: 1.8–12V with ±1.8% accuracy
- Integrated open-loop, overcurrent, and thermal protection
- Automotive-grade design for ECUs, sensors, ABS, transmissions, EV/HEV/PHEV systems
The new regulator series supports 80V input tolerance, making it suitable not only for 48V but also for 24V and 12V auxiliary batteries. Its extremely low quiescent current helps curb standby power drain, a critical factor for powering sensors, CAN/LIN transceivers, and safety-critical modules even when the ignition is off.
A key differentiator is the regulator’s built-in open-loop protection circuit. This safety feature prevents runaway voltages in case of wiring faults, eliminating the need for external overvoltage components. The result: fewer parts, lower cost, and more compact designs without compromising safety.
The Series delivers up to 100mA output current, while the other variant doubles that to 200mA. Both maintain tight voltage accuracy across harsh automotive conditions (–40°C to +125°C). The ICs are available in TO-252-5S(A), HSOP-8A, and HTMSOP-8 packages, supporting flexible integration into modern ECUs. The company also ensures reliability with three-temperature testing and plans for AEC-Q100 qualification and PPAP compliance, aligning with stringent automotive industry requirements.
By merging ultra-low power consumption with integrated protection and wide voltage support, the latest regulator positions itself as a critical enabler of the lighter, safer, and more efficient vehicles shaping the future of mobility.
