See datasheet for actual packaging/pinout drawings

Package | PIN:

RHD | 28

Temp:

Q (-40 to 125)

ECO Plan:

Green (RoHS & no Sb/Br)

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LP873220RHDT-Dual High-Current Buck Converters and Linear Regulators

The LP873220 is designed to meet the power management requirements of the latest processors and platforms in industrial applications. The device contains two step-down DC-DC converters and two linear regulators and general-purpose digital-output signals. The device is controlled by an I2C-compatible serial interface and by an enable signal.

The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output-current range. The LP873220 supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL) thus improving the accuracy of the output voltage. In addition the switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.

The LP873220 device supports load-current measurement without the addition of external current-sense resistors. The LP873220 device also supports programmable start-up and shutdown delays and sequences including GPO signals synchronized to the enable signal. A second GPO signal is available with pin multiplexing of CLKIN pin, if external clock is not needed. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.

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