The LP87702-Q1 meets the power management requirements of the latest platforms,
particularly in automotive radar and camera and industrial radar applications. The device contains
two step-down DC/DC converters, a 5-V boost converter/bypass switch,
two voltage monitoring inputs for external power supplies, and window watchdog.
I2C-compatible serial interface and enable signals control the
The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output
current range for buck converters. The LP87702-Q1 uses
remote voltage sensing for buck converters to compensate IR drop between the converter output and
the point-of-load, 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 for minimal
The LP8770 device has internal circuitry specifically designed to support current
measurement, eliminating the need for an external resistor. Programmable start-up and shutdown
sequences synchronized to the enable signal are supported, including general purpose digital
outputs. During start-up and voltage change, the device controls the output slew rate for minimum
output voltage overshoot and inrush current.
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