Renesas Electronics Corporation Voltage Regulators - Linear + Switching ISL6549CAZA

The ISL6549CAZA is a dual-output voltage regulator designed for high-performance applications, providing both a synchronous rectified buck PWM controller and a linear regulator. It operates from a single 12V input supply and is capable of delivering adjustable output voltages down to 0.8V, with a maximum static regulation tolerance of ±1% across line, load, and temperature variations. The device features a simple single-loop voltage-mode control design, ensuring fast transient response and minimal external component requirements. An integrated soft-start function allows for controlled regulation of both outputs, while undervoltage monitoring protects against output drops below 75% of nominal levels by shutting off both converters and entering a retry mode. The ISL6549CAZA is available in a 16-lead QSOP package and is RoHS compliant, making it suitable for a variety of applications including processor and memory supplies, ASIC power supplies, and embedded systems.