Automotive Camera Power Management IC with Three Synchronous Buck Regulators
and One Low Dropout Linear Regulator

   The ISL78083 is a versatile multi-rail power IC comprised of a primary high voltage synchronous buck regulator, two secondary low voltage synchronous buck regulators, and an LDO regulator. It also offers four overvoltage and undervoltage monitors, three power-good indicators, and a reset output/fault indicator. To limit common-cause failures, the ISL78083 also includes a second reference for the OV/UV monitors, independent from the reference of the regulators.

FEATUREs
• VIN operating range from 4.0V to 42V
   ○ Start range: 4.5V to 42V
• Fixed switching frequency: 2.2MHz with optional
   pseudo-random spread spectrum
• Three synchronous bucks with internal
   compensation and one LDO
   ○ Buck1 output range: 3.3V to 5.05V
   ○ Buck2 output range: 1.0V to 3.3V
   ○ Buck3 output range: 1.0V to 3.3V
   ○ LDO4 output range: 2.8V to 3.4V
• Output UV/OV thresholds, OTP: ±4%, ±6%, ±8%,
   ±12%
• OTP power up/down sequence and delay
• Optional output discharge on Buck2, Buck3, and
   LDO4
• Current at VIN input under shutdown: <1µA typical
• Protection features
   ○ Input voltage UVLO
   ○ Output OV/UV
   ○ Positive and negative current limits on bucks
   ○ Overcurrent protection on internal and output
      LDOs
   ○ Fail-safe controller
   ○ CRC of OTP registers
   ○ OTP hiccup or latch-off fault response

APPLICATIONs
• Rear and surround view HD automotive cameras
• Driver monitoring cameras
• HD dash cam