TPS65313-Q1

The TPS65313-Q1 is a highly integrated power management IC designed for automotive applications, featuring a 2.5V to 5.5V input voltage range and supporting up to 4.5A output current per channel. It integrates two buck converters, one boost converter, and a low-dropout regulator (LDO), enabling efficient power delivery to multiple system components such as microcontrollers, sensors, and communication modules. The device is qualified to AEC-Q100 Grade 1 standards, ensuring robust performance in harsh automotive environments. This PMIC includes advanced features like dynamic voltage scaling (DVS) and programmable switching frequencies from 500 kHz to 2.2 MHz, which optimize efficiency across varying load conditions while minimizing electromagnetic interference (EMI). Each buck converter supports adaptive voltage positioning (AVP) for improved transient response and reduced output ripple. The boost converter is capable of generating a regulated 3.3V or 5V rail from a single-cell battery, making it ideal for systems powered by 12V or 48V automotive batteries. The TPS65313-Q1 also incorporates comprehensive protection mechanisms including over-current, over-temperature, and under-voltage lockout (UVLO) protections, enhancing system reliability and safety. It supports I²C interface for configuration, monitoring, and diagnostics, allowing for flexible software control and real-time feedback on operational parameters. Additionally, the device offers configurable power-up sequences and soft-start functionality to prevent inrush currents and ensure stable startup behavior. Designed for space-constrained applications, the TPS65313-Q1 comes in a compact 3mm x 3mm WQFN package with an exposed pad for enhanced thermal performance. Its high integration reduces the need for external components, lowering BOM costs and simplifying PCB layout. The device operates reliably across a wide temperature range from -40°C to +125°C, meeting the stringent requirements of automotive-grade systems such as ADAS, infotainment, telematics, and body control modules.