Update: 01 October, 2023
MAX17019 is a high-input-voltage quad-output controller (up to 38V). It provides a compact, low-cost controller capable of providing four independent regulators—a main stage, a 3AP-P internal step-down, a 5AP-P internal step-down, and a 2A source/sink linear regulator. The input voltage is up to 38V. This makes it an excellent choice for automotive applications. The internal switching regulators include 5V synchronous MOSFETs that can be powered directly from a single Li+ cell or from the main 3.3V/5V power stages. Finally, the linear regulator is capable of sourcing and sinking 2A to support DDR termination requirements or to generate a fixed output voltage. The step-down converters use a peak current-mode, fixed-frequency control scheme—an easy to implement architecture that does not sacrifice fast-transient response. This architecture also supports peak current-limit protection and pulse-skipping operation to maintain high efficiency under light-load conditions. Separate enable inputs and independent open-drain power-good outputs allow flexible power sequencing. A soft-start function gradually ramps up the output volt- age to reduce the inrush current. Disabled regulators enter high-impedance states to avoid negative output voltage created by rapidly discharging the output through the low-side MOSFET. The MAX17019 also includes output undervoltage, output overvoltage, and thermal-fault protection. The MAX17019 is available in a 48-pin QFN package.
File format: PDF
Size: -
MD5 Checksum: B5A04F4670FDCE98DCC485DB9200E238
Publication date: 08 May, 2012
Downloads: -
PDF Link: MAXIM MAX17019 High-Input-Voltage Quad-Output Controller handbook PDF