The LP87702-Q1 helps meet the power management requirements of the latest platforms,particularly in automotive radar and camera and industrial radar applications. The device containstwo step-down DC/DC converters, and a 5-V boost converter/bypassswitch. To support safety critical applications. the device integrates two voltagemonitoring inputs for external power supplies, and a window watchdog.
The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide outputcurrent range for buck converters. The LP87702-Q1 usesremote voltage sensing to compensate IR drop between the converter output and the point-of-load,thus improving the accuracy of the output voltage.
Programmable start-up and shutdown sequences synchronized to the enable signal aresupported, including general purpose digital outputs. During start-up and voltage change, thedevice controls the output slew rate for minimum output voltage overshoot and inrush current. Thisdevice contains one-time-programmable (OTP) memory. Each orderable part number has specific OTPsettings for a given application. Details of the default OTP configuration for each orderable partnumber can be found in the technical reference manual.