The LP8728-Q1 is a quad-output Power Management Unit (PMU), optimized for low-power FPGAs, microprocessors, and DSPs for automotive applications. This device integrates four highly efficient step-down DC/DC converters into one package. Each converter has high current capability and separate controls which allows flexibility to use the device in multiple applications. All the converters operate above the AM band with a fixed 3.2-MHz switching frequency. Each buck converters high-side switch turnon time is phase shifted to minimize input current spikes.
The protection features include output short-circuit protection, switch current limits, input overvoltage protection, input undervoltage lockout, and thermal shutdown functions. During start-up, the device controls the output slew rate to minimize output voltage overshoot and the input inrush current.
LP8728-Q1 is an Automotive Grade Product that is
AECQ-100 Grade 1 Qualified
Four High Efficiency Step-Down DC/DC Converters:
93% Peak Efficiency (VIN = 5 V, VOUT 3.3 V)
Max Output Current 1 A
Forced PWM Operation
Soft-Start Control
VOUT1 = 3.3 V
VOUT2 = 1.25 V
VOUT3 = 1.8 V or 2.65 V
(pin selectable)
VOUT4 = 1.8 V
Separate Enable Inputs for each Converter Control
Separate Power Good Outputs for each Converter
Output Overcurrent and Input Overvoltage Protection
