Automotive-grade regulators offer high reliability and are PPAP-capable

The ZXTR2105FQ, ZXTR2108FQ and ZXTR2112FQ regulator transistors offered by Diodes Incorporated are qualified to AEC-Q101 standards for high reliability and are product part approval process (PPAP)-capable. They are designed to deliver 5V, 8V, or 12V regulated outputs from nominal battery supplies of 12V or 24V. These regulator transistors are well-suited for powering vehicle electronics. They can tolerate battery voltage spikes up to 60V, making potential applications that cannot use conventional linear regulators. By monolithically combining a transistor, Zener diode, and resistor into a SOT23 package, these regulator transistors reduce component count, which minimises PCB area and increases system reliability by reducing PCB interconnect. The ZXTR2105FQ is aimed at applications that require a 5V ±5% regulated supply from a 12V battery, e.g., for a stable MCU supply inside the required 4.7V to 5.3V supply range. The ZXTR2112FQ is targeted at cars and trucks that have 24V batteries but need a 12V ±10% supply for applications such as the VCC supply for gate driver ICs. All these regulator transistors produce an output current up to 15mA. The 60V maximum input rating of all these regulators ensures adequate headroom in the event of transient over-voltage conditions, while their line and load regulation safeguards continuous operation by ensuring transient voltage drops cannot cause latch-up, further contributing to system reliability.