The TPS6281208QWRWYRQ1 is a family of pin-to-pin 1A, 2A, 3A, and 4A synchronous DC/DC buck converters. All devices are highly efficient and easy to use. The TPS6281208QWRWYRQ1 family of devices is based on peak current mode control topology. The TPS6281x-Q1 is designed for automotive applications such as infotainment systems and advanced driver assistance systems. The low-resistance switch supports up to 4A of continuous output current in high-temperature environments. The switching frequency is externally adjustable from 1.8MHz to 4MHz and can be synchronized to an external clock within this frequency range. In PWM/PFM mode, the TPS6281x-Q1 automatically enters power-saving mode at light loads, maintaining high efficiency over the entire load range. The TPS6281x-Q1 provides 1% output voltage accuracy in PWM mode, which facilitates power supply designs with high output voltage accuracy. The SS/TR pin allows the startup time to be programmed or the output voltage to an external source to be tracked. This feature enables external sequencing of different power rails and limits inrush current during startup.

Application：

• Infotainment system head unit

• Hybrid and reconfigurable instrument clusters

• Telematics control unit

• Look around ECU, ADAS sensor fusion

• External amplifier