MAX618

28V, PWM, Step-Up DC-DC Converter

High-Voltage, High Current Step-Up in QSOP Also Offers SEPIC and Flyback Topologies


Please check latest availability status for a specific part variant.

Description

The MAX618 CMOS, PWM, step-up DC-DC converter generates output voltages up to 28V and accepts inputs from +3V to +28V. An internal 2A, 0.3Ω switch eliminates the need for external power MOSFETs while supplying output currents up to 500mA or more. A PWM control scheme combined with Idle Mode™ operation at light loads minimizes noise and ripple while maximizing efficiency over a wide load range. No-load operating current is 500µA, which allows efficiency up to 93%.

A fast 250kHz switching frequency allows the use of small surface-mount inductors and capacitors. A shutdown mode extends battery life when the device is not in use. Adaptive slope compensation allows the MAX618 to accommodate a wide range of input and output voltages with a simple, single compensation capacitor.

The MAX618 is available in a thermally enhanced 16-pin QSOP package that is the same size as an industry-standard 8-pin SO but dissipates up to 1W. An evaluation kit (MAX618EVKIT) is available to help speed designs.
MAX618: Typical Operating Circuit MAX618: Typical Operating Circuit Enlarge+

Key Features

  • Adjustable Output Voltage Up to +28V
  • Up to 93% Efficiency
  • Wide Input Voltage Range (+3V to +28V)
  • Up to 500mA Output Current at +12V
  • 500µA Quiescent Supply Current
  • 3µA Shutdown Current
  • 250kHz Switching Frequency
  • Small 1W, 16-Pin QSOP Package

Applications/Uses

  • Industrial +24V and +28V Systems
  • LCD Displays
  • Palmtop Computers
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
IOUT1
(A)
Output Adjust. MethodSwitch TypeICC
(mA)
Shutdown Mode Supply Current
(µA)
Shutdown Mode Supply Current
(µA)
DC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxtyptypmaxSee Notes
MAX618 328328120.5ResistorInternal0.5381250
QSOP/16
$4.02 @1k
See All Step-Up Switching Regulators (97)
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.


MAX618EVKIT: Evaluation Kit for the MAX618
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


MAX20075D
36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

  • Synchronous DC-DC Converter with Integrated FETs
  • 20ns Minimum On-Time Small Solution Size Saves Space
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX20076D
36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

  • Synchronous DC-DC Converter with Integrated FETs
  • 20ns Minimum On-Time Small Solution Size Saves Space
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX20076E
36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

  • Synchronous DC-DC Converter with Integrated FETs
  • 20ns Minimum On-Time Small Solution Size Saves Space
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX25276D
36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

  • Synchronous DC-DC Converter with Integrated FETs
  • 20ns Minimum On-Time Small Solution Size Saves Space
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAXM17724
Integrated 4V-60V, 150mA, Himalaya uSLIC Power Module DC-DC Converter with 50mA Linear Regulator

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17712
Integrated 4V-60V, 150mA, Himalaya uSLIC Power Module DC-DC Converter with 50mA Linear Regulator

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17720
Integrated 4V-60V, 150mA, Himalaya uSLIC Power Module DC-DC Converter with 50mA Linear Regulator

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM15068
7.5V to 60V, 200mA Himalaya uSLIC Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17633
4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17634
4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17635
4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17537
4.5V to 60V, 3A High-Efficiency, DC-DC Step-Down SiP Power Module with Integrated Inductor

  • Reduces Design Complexity, Manufacturing Risks, and Time to Market
  • Saves Board Space in Space-Constrained Applications
  • Offers Flexibility for Power-Design Optimization

MAXM17630
4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17631
4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAXM17632
4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Module

  • Easy to Use
  • High Efficiency
  • Flexible Design

MAX20473
Low-Voltage Synchronous Boost Converter

  • Synchronous Boost Converter
  • 3.0V to 4.0V Operating Supply Voltage
  • True Output Shutdown
  • High Precision
    • ±1.5% Output-Voltage Accuracy
    • 93V ±2% Undervoltage Monitoring
    • 107V ±2% Overvoltage Monitoring
  • Robust for the Automotive Environment
    • Current-Mode Control, Forced-PWM, and Skip Operation
    • Overtemperature and Overcurrent Protection
    • 12-Pin (3mm × 3mm) TDFN

  • MAX17662
    3.5V to 36V, 2A, 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

    MAX77504
    14V Input, 3A High-Efficiency Buck Converter in WLP or QFN

    • 3A Single-Channel Buck Regulator
    • 2.6V to 14V Input Voltage
    • 0.6V to 6V Output Voltage Range

    MAX20458
    36V Boost Controller with 3.5A Synchronous Buck Converter For Automotive Applications

    • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • Enables Crank-Ready Designs
    • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

    MAX20057
    36V Boost Controller with Dual 3.5A/2A Synchronous Buck Converters for Automotive Applications

    • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • Enables Crank-Ready Designs
    • Integration and Thermally Enhanced Packages Save Board Space and Cost

    MAX17631
    4.5V to 36V, 1.5A, 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

    MAX17634A
    4.5V to 36V, 4.25A, 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

    MAX17634B
    4.5V to 36V, 4.25A, 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

    MAX17634C
    4.5V to 36V, 4.25A, 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

    MAX77501
    110VPK-PK High-Efficiency Piezo Haptic Actuator Boost Driver

    • 110VPK-PK Haptic Waveforms Generation
    • Optimized for up to 2µF Haptic Piezo Actuator
    • 2.8V to 5.5V Input Supply Range

    MAX20457
    36V Dual 3.5A/2A Synchronous Buck Converters for Automotive Applications

    • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • Enables Crank-Ready Designs
    • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input-Voltage Range

    MAXM17536
    4.5V to 60V, 4A High-Efficiency, DC-DC Step-Down SiP Power Module with Integrated Inductor

    • Reduces Design Complexity, Manufacturing Risks, and Time-to-Market
    • Saves Board Space in Space-Constrained Applications
    • Offers Flexibility for Power-Design Optimization

    MAX17576
    4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

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

    MAX20412
    Automotive Low-Voltage 2-Channel Step-Down Controller

    • 2-Channel, High-Efficiency DC-DC Controller in a Small Solution Size
    • High-Precision Regulator for Applications Processors
    • Low-Noise Features Reduce EMI

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

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

    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

    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

    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