MAX17559

PRODUCTION

MAX17559

60V, Dual-Output, Synchronous Step-Down Controller

Wide Input Voltage Dual-Output Controller Enables Design Flexibility for Industrial Applications

PRODUCTION

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1ku List Price Starting From $4.19

Features

Wide Range of Operation
- Wide 4.5V to 60V Input Voltage Range
- Wide 0.8V to 24V Output Voltage Range
- R_SENSE or Inductor DCR Current-Sensing
- Fixed 180° Out-of-Phase Operation
- Adjustable 100kHz to 2.2MHz Switching Frequency
- Independent Enable and PGOOD
- Available in a Lead(Pb)-Free 7mm × 7mm, 32-Pin TQFP Package
Enhances Power Efficiency
- Low-Impedance Gate Drives for High Efficiency
- DCM Operation at Light Loads
- Auxiliary Bootstrap LDO
Operates Reliably in Adverse Industrial Environments
- Independent Adjustable Soft-Start/Stop or Tracking
- Current Selectable Foldback or Latchoff Limits MOSFET Heat Dissipation During a Short-Circuit Condition
- Operates Over the -40°C to +125°C Temperature Range
- Output Overvoltage and Overtemperature Protections

Additional Details

The MAX17559 is a dual-output, synchronous step-down controller that drives nMOSFETs. The device uses a constant-frequency, peak-current-mode architecture.

The two outputs can be configured as independent voltage rails. Input capacitor size is minimized by running the two outputs 180° out-of-phase.

The IC supports current sensing using either an external current-sense resistor for accuracy or an inductor DCR for improved system efficiency. Current foldback or latchoff limits MOSFET power dissipation under short-circuit conditions.

The IC provides independent adjustable soft-start/stop for each output and can start up monotonically into a prebiased output. The IC can be configured in either PWM or DCM modes of operation, depending on whether constant-frequency operation or light-load efficiency is desired.

The IC operates over the -40°C to +125°C temperature range and is available in a lead(Pb)-free, 7mm × 7mm, 32-pin TQFP, package.

Applications

Computerized Numerical Control
Distributed DC Power Systems
Industrial Power Supplies
Motion Control
Programmable Logic Controllers

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Ask a Question

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $4.19

Documentation

Technical Documents 2

MAX17559: 60V, Dual-Output, Synchronous Step-Down Controller Data Sheet (Rev.0) 03/29/2016

MAX17559 Reliability Data 01/12/2023

Design Resources 2

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. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX17559ACJ+	Thin Quad Flatpack	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX17559ACJ+T	Thin Quad Flatpack	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

MAX17559ACJ+
Pin/Package Drawing
Thin Quad Flatpack
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX17559ACJ+T
Pin/Package Drawing
Thin Quad Flatpack
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

Filter by Model

Part Models

Product Lifecycle

PCN

Nov 29, 2021

- 2218F

ASSEMBLY

MAX17559ACJ+

PRODUCTION

MAX17559ACJ+T

PRODUCTION

pdf

pcn_2218f

Filter by Model

Part Models

Product Lifecycle

PCN

Nov 29, 2021

- 2218F

ASSEMBLY

MAX17559ACJ+

PRODUCTION

MAX17559ACJ+T

PRODUCTION

pdf

pcn_2218f

Software & Part Ecosystem

Companion Parts 1

Parts	Product Life Cycle	Description
Multiple Output Buck Regulators1
MAX17558	PRODUCTION	60V, Dual-Output, Synchronous Step-Down Controller

Evaluation Kit

MAX17559EVKIT

Evaluation Kit for MAX17559

MAX17559EVKIT

Evaluation Kit for MAX17559

Features and Benefits

6V to 60V Input Range
Output Rails: VOUT1: 3.3V/15A, VOUT2: 5V/8A
150kHz Switching Frequency
Independent Enable Inputs
Independent Adjustable Soft-Start Time
Configurable Tracking Operation
Selectable PWM/DCM Modes of Operation
Fixed 180^° Out-of-Phase Operation
Selectable Foldback/Latchoff Current Limit
Programmable Current-Limit Threshold
Independent PGOOD Outputs
Overcurrent, Overvoltage, and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested

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Product Detail

The MAX17559 EV kit is a proven design to evaluate the dual synchronous step-down regulator that provides independent 3.3V and 5V outputs capable of driving 8A and 15A loads from the 6V to 60V input-voltage range. Operating the two regulators 180^° out-of-phase significantly reduces the peak input ripple current, allowing the use of smaller, less expensive components, while minimizing parts count. The EV kit features adjustable input undervoltage lockout, soft-start/stop time, and current-limit threshold, as well as selectable PWM/DCM modes, foldback/latchoff current limit, and independent open-drain PGOOD signals. By disabling channel 2, the evaluation kit is capable of operating from a lower input supply (4.5V to 60V), providing a single 3.3V output driving up to 15A.

Applications

Computerized Numerical Control
Distributed DC Power Systems
Industrial Power Supplies
Motion Control
Programmable Logic Controllers

Resources

ZIP

MAX17559EVKIT Gerber File - Design Files

3.76M

MAX17559EVKIT

Evaluation Kit for MAX17559

Tools & Simulations

EE-Sim 1

EE-Sim Power® Tools

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

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