Features and Benefits
- Fixed-Frequency, Current-Mode Controllers
- 5.5V to 38V Input Range (Step-Down)
- 1x Step-Down Controller
- 1x Internal 5AP-P Step-Down Regulator
- 1x Internal 3AP-P Step-Down Regulator
- 1x 2A Source/Sink Linear Regulator with Dynamic REFIN
- Internal BST Diodes
- Internal 5V 50mA Linear Regulator
- Fault Protection—Undervoltage, Overvoltage, Thermal, Peak Current Limit
- Independent Enable Inputs and Power-Good Outputs
- Voltage-Controlled Soft-Start
- High-Impedance Shutdown
- 10µA (typ) Shutdown Current
The MAX17019 is a high-input-voltage quad-output controller (up to 38V). The MAX17019 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.
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 voltage 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, 6mm x 6mm thin QFN package.
- Embedded Control Systems
- Set-Top Box
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
MAX17019 Reliability Data1/12/2023109K
Power-Supply Solutions for Altera FPGAs4/24/2012
Power-Supply Solutions for Xilinx FPGAs4/24/2012
MAX17019 Companion Parts
Recommended Related Parts
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Support & Discussions
Sample & Buy
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Please see the latest communication from our CCO regarding lead times.
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.