MAX17504

4.5V–60V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

Industry's Only 60V, 3.5A Internal FET Synchronous Buck Converter


Please check latest availability status for a specific part variant.

Description

The MAX17504/MAX17504S high-efficiency, high-voltage, synchronously rectified step-down converter with dual integrated MOSFETs operates over a 4.5V to 60V input. It delivers up to 3.5A and 0.9V to 90% VIN output voltage. Built-in compensation across the output voltage range eliminates the need for external components. The feedback (FB) regulation accuracy over -40°C to +125°C is ±1.1%. The device is available in a compact (5mm x 5mm) TQFN lead (Pb)-free package with an exposed pad. Simulation models are available.

The device features a peak-current-mode control architecture with a MODE feature that can be used to operate the device in pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous mode (DCM) control schemes. PWM operation provides constant frequency operation at all loads, and is useful in applications sensitive to switching frequency. PFM operation disables negative inductor current and additionally skips pulses at light loads for high efficiency. DCM features constant frequency operation down to lighter loads than PFM mode, by not skipping pulses, but only disabling negative inductor current at light loads. DCM operation offers efficiency performance that lies between PWM and PFM modes. The MAX17504S offers a lower minimum on-time that allows for higher switching frequencies and a smaller solution size.

A programmable soft-start feature allows users to reduce input inrush current. The device also incorporates an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn on the part at the desired input-voltage level. An open-drain active-low RESET pin provides a delayed power-good signal to the system upon achieving successful regulation of the output voltage.
MAX17504: Typical Application Circuit MAX17504: Typical Application Circuit Enlarge+

Key Features

  • Eliminates External Components and Reduces Total Cost
    • No Schottky-Synchronous Operation for High Efficiency and Reduced Cost
    • Internal compensation for Stable Operation at Any Output Voltage
    • All Ceramic Capacitor Solution: Ultra-Compact Layout with as Few as Eight External Components
  • Reduce Number of DC-DC Regulators to Stock
    • Wide 4.5V to 60V Input Voltage Range
    • 0.9V to 90% VIN Output Voltage
    • Delivers Up to 3.5A Over Temperature
    • 100kHz to 2.2MHz Adjustable Frequency with External Synchronization
    • MAX17504S Allows Higher Frequency Of Operation
    • Available in a 20-Pin, 5mm x 5mm TQFN Package
  • Reduce Power Dissipation
    • Peak Efficiency > 90%
    • PFM and DCM Modes for High Light-Load Efficiency
    • Shutdown Current = 2.8µA (typ)
  • Operate Reliably
    • Hiccup-Mode Current Limit and Autoretry Startup
    • Built-In Output Voltage Monitoring—(Open-Drain Active-Low RESET Pin)
    • Resistor Programmable EN/UVLO Threshold
    • Adjustable Soft-Start and Pre-Biased Power-Up
    • High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range

Applications/Uses

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • High-Voltage Single-Board Systems
  • Industrial Power Supplies
  • Wall Transformer Regulation
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX17504 4.5600.954Resistor3.5InternalYesYes12200EE-Sim
TQFN/20
TQFN-CU/20
$2.05 @1k
See All Step-Down Switching Regulators (367)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX17504EVKITA: Evaluation Kit for the MAX17504 in 3.3V Output-Voltage Application
MAX17504EVKITB: Evaluation Kit for the MAX17504 in 5V Output-Voltage Application
MAX17504EVKITBE: Evaluation Kit for the MAX17504 in 5V Output-Voltage Application

Tools & Models

  • EE-Sim: Design & Simulate MAX17504
  • CAD Symbols and Footprints

  • MAX17504ATP+
  • MAX17504ATP+T
  • MAX17504SATP+
  • MAX17504SATP+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


    MAX20343
    Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

    • Extend System Run Time
    • Low, Continuous Noise Profile
    • Adaptable Load Transient Response

    MAX20006E
    36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

    • Multiple Functions for Small Size
    • High Precision
    • Robust for the Automotive Environment

    MAX20004E
    36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

    • Multiple Functions for Small Size
    • High Precision
    • Robust for the Automotive Environment

    MAX20008E
    36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

    • Multiple Functions for Small Size
    • High Precision
    • Robust for the Automotive Environment

    MAX17630
    4.5V to 36V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX20011
    Automotive Single 8A/12A Step-Down Converter with High Efficiency

    • High-Efficiency DC-DC Converter
    • Up to 12A peak output current:
    • Differential Remote Voltage Sensing

    MAX15158Z
    High-Voltage Multiphase Boost Controller

    • Wide Operating Range
    • Integration Reduces Design Footprint
    • Robust Fault Protection Improves Quality and Reliability

    MAX20079
    Automotive 36V 3.5A Buck Converter with 3.5μA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX20026, MAX20026S
    Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

    • High-Integration Shrinks Solution Size
    • Performance Designed for Automotive Point-of-Load Regulation
    • Low-Noise Features Improve EMI Performance

    MAX20026S
    Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

    • High-Integration Shrinks Solution Size
    • Performance Designed for Automotive Point-of-Load Regulation
    • Low-Noise Features Improve EMI Performance

    MAX20801
    MPP Tracking DC-DC Converter

    • Performs MPPT on 20-24 Series Connected PV Cells
    • Fast MPPT Reacts Quickly to Changing Conditions
    • Integrated Voltage-Limiting Clamps Output Voltage

    MAX20800
    MPP Tracking DC-DC Converter

    • Performs MPPT on 20-24 Series Connected PV Cells
    • Fast MPPT Reacts Quickly to Changing Conditions
    • Integrated Voltage-Limiting Clamps Output Voltage

    MAX20059
    72V, 1A, Automotive Synchronous Step-Down DC-DC Converter

    • Synchronous DC-DC Converters with Integrated FETs
    • Flexibility
    • Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

    MAX20058
    60V, 1A, Automotive Synchronous Step-Down DC-DC Converter

    • Synchronous DC-DC Converters with Integrated FETs
    • Flexibility
    • Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

    MAXM15066
    4.5V to 60V, 300mA Step-Down uSLIC Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15067
    4.5V to 60V, 300mA Step-Down uSLIC Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15065
    4.5V to 60V, 300mA Step-Down uSLIC Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17904
    4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17905
    4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17906
    4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAX20048
    Automotive 40V, 55µA IQ, 2.2MHz, H-Bridge Buck-Boost Controller

    • Meets Stringent Automotive Quality and Reliability Requirements
    • Efficient Solution in a Small Solutions Size
    • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements

    MAX20010C
    Automotive Single 6A Step-Down Converters

    • Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
    • High-Precision Voltage Regulator for Applications Processors
    • Low-Noise Feature Reduces EMI

    MAX20010D
    Automotive Single 6A Step-Down Converters

    • Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
    • High-Precision Voltage Regulator for Applications Processors
    • Low-Noise Feature Reduces EMI

    MAX20039
    Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

    • Meets Stringent Automotive Quality and Reliability Requirements
    • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
    • High Switching Frequency Allows Use of Small External Components

    MAX20040
    Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

    • Meets Stringent Automotive Quality and Reliability Requirements
    • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
    • High Switching Frequency Allows Use of Small External Components

    MAX20029B
    Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters

    • Quad Step-Down DC-DC Converters with Integrated FETs
    • Operate from 3.0V to 5.5V Supply Voltage
    • 1.0V to 4.0V Fixed or Adjustable Output Voltage

    MAX20029, MAX20029B, MAX20029C
    Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters

    • Quad Step-Down DC-DC Converters with Integrated FETs
    • Operate from 3.0V to 5.5V Supply Voltage
    • 1.0V to 4.0V Fixed or Adjustable Output Voltage

    MAX20029C
    Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters

    • Quad Step-Down DC-DC Converters with Integrated FETs
    • Operate from 3.0V to 5.5V Supply Voltage
    • 1.0V to 4.0V Fixed or Adjustable Output Voltage

    MAX77827
    5.5V Input, 1.8A/3.1A Switch Buck-Boost Converter with 6μA IQ

    • 1.8V to 5.5V Input Voltage Range
    • 2.3V to 5.3V Single Resistor Adjustable Output Voltage
    • 1.6A Maximum Output Current (3.1A ILIM Option, Buck Mode)

    MAXM15465
    4.5V to 42V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15466
    4.5V to 42V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15467
    4.5V to 42V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design