TPS650380EVM-054

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The TPS650380EVM-054 is a highly integrated evaluation board used for evaluating the integrated low-power, 2-phase, buck-boost DC/DC (DCDC) converter for battery-powered portable applications. The TPS650380EVM-054 operates as a single phase, buck-boost DCDC in bidirectional mode, providing a flexible output power range up to 8 W. It offers a wide input voltage range of 1.7 V to 6 V, adjustable output voltage, and a wide operating temperature range of -40 °C to +125 °C.

The TPS650380EVM-054 board has two TPS650380 DC/DC converters. The main converter has a wide input voltage range of 1.2 to 6 V, adjustable output voltage from 0.7 V to 4.5 V, and maximum output current of 1.5 A. The auxiliary converter has a narrow input voltage range of 3.2 to 6 V, adjustable output voltage up to 7.4 V, and maximum output current of 2.0 A. The board contains two external power sources, RT9045P for the main converter and RT9045P-HV for the auxiliary converter.

The TPS650380EVM-054 evaluation board works on the principle of synchronous, bi-directional, buck-boost conversion. It is used for providing regulated DC voltage conversion with no external components. It combines the two DC/DC converters, along with two external low dropout voltage regulators (LDOs) and two voltage supervisors (VSs).

The board has an internal compensation network for the main and auxiliary DC/DC converters. The internal compensation allows the user to regulate the output voltage for stable operation, over a range of frequencies, and load current levels, hence, eliminating the need for external compensation components. The board is also equipped with a bypass diode to prevent voltage reversals from occurring.

The TPS650380EVM-054 board features a SMBus digital interface, allowing remote monitoring and adjustment of the regulated voltage. It also features an analog readback, giving it precise digital control. Additionally, the board can be used with any I2C/SMBus compliant device, allowing for programming of the output voltage or other parameters remotely.

The TPS650380EVM-054 evaluation board is a highly useful tool for evaluating the integrated, low-power, 2-phase buck-boost DC/DC converter for battery-powered portable applications. Its wide input voltage range provided by two power sources, adjustable output voltage, precise digital control, and wide operating temperature range make it ideal for operation in a variety of applications including sensors, battery-powered devices, and power management modules.

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