Linear Technology Corporation has introduced the LTC3863, a high voltage inverting DC/DC controller that uses a single inductor to produce a negative voltage from a positive input voltage.
The LTC3863, operating over a 3.5V to 60V input supply range, protects against high voltage transients and operates continuously during automotive cold crank and cover a broad range of input sources and battery chemistries.
The LTC3863 helps increase the run-time in battery-powered applications with its low 70µA quiescent current in standby mode with the output enabled in Burst Mode operation. According tot he company, the LTC3863’s output voltage can “be set from -0.4V to -150V or lower at up to 3A typical; making it well suited for 12V or 24V automotive, heavy equipment, industrial control, robotic and telecom applications.”
The LTC3863E and LTC3863I versions operate from a -40°C to 125°C junction temperature; the LTC3863H grade operates from a -40°C to 150°C operating junction temperature; and the LTC3863MP operates from a -55°C to 150°C operating junction temperature.
