6.1 Application Information

The TPS659037 device is integrated power management integrated circuits (PMIC), both available in a 169-pin, 0.8-mm pitch, 12-mm × 12-mm nFBGA package. It has seven configurable step-down converter rails, with the ability to combine power rails and supply up to 9 A of output current in multi-phase mode. The TPS659037 device also has seven LDOs. The device has a 12-bit GPADC with three external channels, eight configurable GPIOs, two I²C interface channels or one SPI channel, a real-time clock module with calendar function, a PLL for external clock sync and phase delay capability, and a programmable power sequencer and control for supporting different processors and applications.

As the TPS659037 device is highly integrated PMIC device, users must take necessary actions to ensure the PMIC is operating under the recommended operating conditions to ensure desired performance from the device. Additional cooling strategies may be necessary to maintain the junction temperature below maximum limit allowed for the device. To minimize the interferences when turning on a power rail while the device is in operation, optimal PCB layout and grounding strategy are essential and are recommended in Section 8. In addition, users can take steps such as turning on additional rails only when the systems is operating in light load condition.

The following sections provides the typical application use case with the recommended external components and layout guidelines. For application design guidance and cross checks, refer to the TPS659037 Design Guide and the TPS659037 Design Checklist.