Dialog Semiconductor has expanded its automotive power management IC (PMIC) portfolio with a new family of automotive-grade, step-down DC/DC converters. The DA913X-A family of high-efficiency, high-current buck converters are highly integrated, requiring fewer external components.
The DA913X-A devices with fully integrated FETs operate at efficiency levels above 90%, which reduce the thermal design challenges for powering high-current rails in automotive systems, including infotainment, navigation, telemetry, and advanced driver assistance systems (ADAS). Other features include remote sensing, full programmable soft start, and dynamic voltage control for adaptive adjustment of the supply voltage, depending on the load. DVC efficiency delivers power savings when the downstream circuity goes into low power or idle mode. The devices also provide configurable GPIOs, supporting a range of features including I2C, DVC, and power good indicator.
The DA913X-A family is comprised of three devices that are configured as single- or dual-output buck converters. The DA9130-A operates as a single-channel, dual-phase buck converter, delivering up to a 10 A output current. The DA9131-A and DA9132-A both integrate two single-phase buck converters, each delivering up to 5-A and 3-A output current, respectively.
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All devices offer an input voltage range of 2.5 V to 5.5 V and an output voltage range of 0.3 V to 1.9 V, making them suitable for low-voltage systems. Output voltages above 1.9 V are supported with an external resistor divider. They are AEC-Q100 Grade 2 qualified.
The automotive-grade DC/DC converters are available in a 3.3 x 4.8 mm, 24-pin FC-QFN wettable flank package. Industrial/commercial grade versions are also available. Visit DA9132, DA9131, DA9131-A, DA9130, DA9130-A and DA9132-A for more information.
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