MAX5066
Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications
Top
Overview
Features and Benefits
- 4.75V to 5.5V or 5V to 28V Input
- Dual-Output Synchronous Buck Controller
- Configurable for Two Separate Outputs or One Single Output
- Each Output is Capable of Up to 25A Output Current
- Average Current-Mode Control Provides Accurate Current Limit
- 180° Interleaved Operation Reduces Size of Input Filter Capacitors
- Limits Reverse Current Sinking When Operated in Parallel Mode
- Each Output is Adjustable from 0.61V to 5.5V
- Independently Programmable Adaptive Voltage Positioning
- Independent Shutdown for Each Output
- 100kHz to 1MHz per Phase Programmable Switching Frequency
- Oscillator Frequency Synchronization from 200kHz to 2MHz
- Hiccup Mode Overcurrent Protection
- Overtemperature Shutdown
- Thermally Enhanced 28-Pin TSSOP Package Capable of Dissipating 1.9W
- Operates Over -40°C to +85°C or -40°C to +125°C Temperature Range
Product Details
The MAX5066 is a two-phase, configurable single- or dual-output buck controller with an input voltage range of 4.75V to 5.5V or from 5V to 28V. Each phase of the MAX5066 is designed for 180° operation. A mode pin allows for a dual-output supply or connecting two phases together for a single-output, high-current supply. Each output channel of the MAX5066 drives n-channel MOSFETs and is capable of providing more than 25A of load current. The MAX5066 uses average current-mode control with a switching frequency up to 1MHz per phase where each phase is 180° out of phase with respect to the other. Out-of-phase operation results in significantly reduced input capacitor ripple current and output voltage ripple in dual-phase, single-output voltage applications. Each buck regulator output has its own high-performance current and voltage-error amplifier that can be compensated for optimum output filter L-C values and transient response.
The MAX5066 offers two enable inputs with accurate turn-on thresholds to allow for output voltage sequencing of the two outputs. The device's switching frequency can be programmed from 100kHz to 1MHz with an external resistor. The MAX5066 can be synchronized to an external clock. Each output voltage is adjustable from 0.61V to 5.5V. Additional features include thermal shutdown, "hiccup mode" short-circuit protection. Use the MAX5066 with adaptive voltage positioning for applications that require a fast transient response, or accurate output voltage regulation.
The MAX5066 is available in a thermally enhanced 28-pin TSSOP package capable of dissipating 1.9W. The device is rated for operation over the -40°C to +85°C extended, or -40°C to +125°C automotive temperature range.
Applications
- Graphic Cards
- High-End Desktop Computers
- Networking Systems
- Point-of-Load High-Current/High-Density
- RAID Systems
- Telecom DC-DC Regulators
Product Categories
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.
Evaluation Kits (1)
Documentation & Resources
-
UG-5861: EE-SIM Design and Simulation Environment User Guide5/5/2014PDF3M
Design Resources
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.
PCN-PDN Information
Support & Discussions
Sample & Buy
Ordering FAQs
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.
List Pricing
(*)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.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
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.