S-19914AA-S8T1U7

Voltage Regulators - DC DC Switching Regulators Overview

The S-19914AA-S8T1U7 is an automotive-grade synchronous buck DC-DC converter from the ABLIC S-19914/5 series. It features a wide input voltage range of 4.0 V to 36.0 V, allowing direct connection to vehicle battery systems. The device delivers a maximum output current of 1 A with an oscillation frequency of 2.2 MHz. It incorporates a built-in spread spectrum clock generation function to reduce electromagnetic interference. Key electrical specifications include a feedback pin voltage accuracy of ±1.5%, an efficiency of 91%, and overcurrent protection set at 1.85 A.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Built-in spread spectrum clock generation circuit that extends operating frequency bandwidth during PWM operation to suppress noise peaks and reduce conducted and radiated emissions.
• Synchronous rectification architecture integrated within a compact HSNT-8 (2030) package for efficient power conversion.
• Automotive qualification compliant with AEC-Q100 standards, ensuring reliability for safety-critical electronic control units.

Voltage Regulators - DC DC Switching Regulators Applications

• Low-noise automotive camera systems requiring stable power supply with minimized electromagnetic interference.
• Electronic Control Units (ECUs) in vehicles needing robust regulation from direct battery connections.
• General automotive electronics utilizing 12V or 24V battery architectures.

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix codes against the official datasheet to confirm pinout compatibility and thermal characteristics. Confirm AEC-Q100 certification status for your target application environment. Ensure input voltage requirements align with the 4.0 V to 36.0 V operational range. Check for any required external component values for the 2.2 MHz switching frequency configuration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing automotive circuits that require high efficiency and low electromagnetic noise. The synchronous design offers superior performance compared to asynchronous alternatives. Consider the HSNT-8 package size for space-constrained PCB layouts. Verify that the 1 A output current meets the load requirements of the downstream circuitry.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the S-19914/5 series of automotive switch regulators designed by ABLIC. These devices are engineered specifically for automotive environments, offering high input voltage tolerance and integrated noise reduction features. The series supports various output voltages through external resistor settings, providing flexibility for different automotive subsystems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official ABLIC documentation for qualified substitute part numbers within the S-19914/5 family. Ensure any replacement maintains the same package type and electrical specifications. Verify compatibility with existing PCB footprints and thermal management solutions before implementation.