Datasheet ISL78083 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 Features comprised of a primary high voltage synchronous V operating range from 4.0V to 42V IN buck regulator, two secondary low voltage Start range: 4.5V to 42V synchronous buck regulators, and an LDO regulator. It also offers four overvoltage and undervoltage Fixed switching frequency: 2.2MHz with optional monitors, three power-good indicators, and a reset pseudo-random spread spectrum output/fault indicator. To limit common-cause failures, Three synchronous bucks with internal the ISL78083 also includes a second reference for the compensation and one LDO OV/UV monitors, independent from the reference of the regulators. Buck1 output range: 3.3V to 5.05V The ISL78083 is intended for high-density power Buck2 output range: 1.0V to 3.3V applications, requiring few external components and Buck3 output range: 1.0V to 3.3V minimal board space. It offers an extensive feature set LDO4 output range: 2.8V to 3.4V configured using internal One-Time Programmable (OTP) memory. Nearly all device options, such as Output UV/OV thresholds, OTP: 4%, 6%, 8%, each output voltage selection, power sequencing, and 12% OV/UV thresholds are internally configured and OTP power up/down sequence and delay require no external components for selection. The Optional output discharge on Buck2, Buck3, and regulators also offer internal compensation. The LDO4 bucks are synchronous to achieve high efficiency and are capable of operating in harsh environments Current at VIN input under shutdown: <1A typical requiring high ambient temperature. Protection features ISL78083 is available in a 4mmx4mm 24 Ld Step Cut Input voltage UVLO QFN (SCQFN) package with an exposed pad for improved thermal performance. It is AEC-Q100 Output OV/UV qualified to Grade 1 and operates across an ambient Positive and negative current limits on bucks temperature range of -40C to 125C and is Overcurrent protection on internal and output electrically specified across a junction temperature LDOs range of -40C to 150C. Fail-safe controller Applications CRC of OTP registers Rear and surround view HD automotive cameras OTP hiccup or latch-off fault response Driver monitoring cameras Related Literature HD dash cam For a full list of related documents, visit our website: ISL78083 device page R33DS0007EU0100 Rev.1.00 Page 1 of 33 Nov.15.19ISL78083 Enable from System, 0.22F or EN tied to VIN1 pin BOOT1 4.7H V (4V to 42V, 45V max) EN IN PHASE1 V OUT1 VIN1 FB1 (3.8V at 0.8A) 10F 0.1F LDOIN4 CFG1 VIN2/3 EN LV 0.1F LDOOUT4 BYP PGND1 (3.3V at 300mA) 4.7F 1F LDOOUT4 1.5H PHASE2 PGOOD1 V OUT2 Power-Good PGOOD2/3 FB2 (1.8V at 300mA) Indicators PGOOD4 2x 10F PGND2/3 1.5H PHASE3 V RSTB Fault OUT3 RSTB FB3 (1.2V at 600mA) Indicator 2x 10F Figure 1. Typical Application R33DS0007EU0100 Rev.1.00 Page 2 of 33 Nov.15.19