The LM5150-Q1 device is a wide input range automatic boost controller. The device is
suitable for use as a pre-boost converter which maintains the output voltage from a vehicle battery
during automotive cranking or from a back-up battery during the loss of vehicle battery.
The LM5150-Q1 switching frequency is programmed by a resistor from 220 kHz to 2.3 MHz.
Fast switching (≥ 2.2-MHz) minimizes AM band interference and allows for a small solution size and
fast transient response.
The LM5150-Q1 operates in low IQ standby mode when the input or
output voltage is above the preset standby thresholds and automatically wakes up when the output
voltage drops below the preset wake-up threshold.
The device transients in and out of the low IQ standby mode to
extend battery life at light load. A single resistor programs the target output regulation voltage
as well as the configuration. Additional features include low shutdown current, boost status
indicator, adjustable cycle-by-cycle current limit, and thermal shutdown.
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