MAX38802

PRODUCTION

Integrated, Step-Down Switching Regulators with Selectable Applications Configurations

25A Fully Integrated, Highly Efficient Switching Regulators

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • High-Efficiency Solution
    • Up to 97% Peak
    • Up to 87% Full-Load
    • Up to 96% Light-Load Efficiency at 1A with DCM Enabled
  • Flexible Design Allows Early PCB Definition
    • Footprint Compatible with MAX38800 (9A) and MAX38801 (15A)
    • Programmable Switching Frequency Up to 1MHz
    • Programmable Soft-Start and STAT Delay Timings
    • Programmable Reference Voltage with External Input Option
    • Programmable Positive and Negative OCP Limit
  • Advanced Architecture, Protection and Reporting Guarantees Reliable Designs
    • Analog Current or Temperature Reporting
    • Differential Remote Sense with Open-Circuit Detection
    • Fast Transient Response with Quick-PWM™ Architecture
    • Percentage-Based Output Power Good and OVP
    • Open-Drain Status Indicator (STAT) Pin
    • Input Undervoltage and Overvoltage Lockout
    • Adaptive Dead Time Control
  • Saves Board Space
    • Integrated Boost Switch
    • 27-Bump WLCSP (2.2mm x 3.8mm) Footprint
    • Operation Using Ceramic Input and Output Capacitors

The MAX38802/MAX38803 are fully-integrated, highly efficient switching regulators for applications operating from 6.5V to 14V input supplies that require up to 25A maximum load. These single-chip regulators provide a compact high-efficiency, power-delivery solution for precision outputs that demand fast transient response.


The two devices have different programmability options (see Tables 3a and 3b for details) to enable a wide range of configurations. The programmable features include: internal/external reference voltage, output voltage setpoint, switching frequency, overcurrent protection level (OCP), and soft-start timing. Discontinuous current mode (DCM) operation can be enabled through pin-strapping to improve light-load efficiency.


The MAX38802/MAX38803 include multiple protection and measurement features. Positive and negative cycle-by-cycle OCP, short-circuit protection and overtemperature protection (OTP) ensure robust design. Input undervoltage and overvoltage lockout shut down the regulator to prevent damage when the input voltage is out of specification. Regulation is halted in case of an output overvoltage (OVP) event. A status pin indicates that the output voltage is within range and the output voltage is in regulation. The device has an analog output that can be configured to report output current or junction temperature with ±5% and ±8°C accuracy, respectively.


The devices are available in a 27-bump (2.2mm x 3.8mm) WLCSP package that provides low thermal resistance and minimizes the PCB area.

Applications

  • DDR memory – VDDQ, VPP and VTT
  • GPU Core Supply
  • I/O and Chipset Supplies
  • Point-of-Load (POL) applications
  • Servers/uServers
MAX38802
Integrated, Step-Down Switching Regulators with Selectable Applications Configurations
MAX38802, MAX38803: Basic Application Circuit
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Documentation

Data Sheet 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Switching Regulators & Controllers 2
MAX38800
PRODUCTION Integrated, Step-Down Switching Regulator with Selectable Applications Configurations
MAX38803
PRODUCTION Integrated, Step-Down Switching Regulators with Selectable Applications Configurations
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Tools & Simulations

EE-Sim Power® Tools 1

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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Evaluation Kits

MAX38803EVKIT

Evaluation Kit for the MAX38803

Buy Now View Details

Features and Benefits

  • High-Efficiency Solution
    • Up to 97% Peak
    • Up to 87% at Full Load
    • Up to 96% Light Load Efficiency at 1A with DCM Enabled
  • Inductor Valley Current Limit is Configured to 16A (R_SEL = R1 = 6.04kΩ)
  • Programmable Switching Frequency from 400kHz to 900kHz
  • Programmable Positive and Negative OCP Limit
  • Programmable Reference Voltage with External Input Option
  • Fast Transient Response with Quick PWM™ Architecture
  • Differential Remote Sense with Open-Circuit Detection
  • Percentage-Based Output Power Good and OVP
  • Open-Drain Status Indicator (STAT) Pin
  • Input Undervoltage and Overvoltage Lockout
  • Adaptive Dead Time Control
  • Integrated Boost Switch
  • 27-Bump WLCSP (2.2mm x 3.8mm) Footprint
  • Operation Using Ceramic Input and Output Capacitors

Product Details

The MAX38803 evaluation kit (EV kit) serves as a reference platform for evaluating the MAX38803 voltage regulator IC. This single-chip, integrated switching regulator provides an extremely compact, highly efficient, fast, accurate, and reliable power delivery solution for low-output voltage applications. The MAX38803 has different programmability options to enable a wide range of configurations.

The EV kit consists of a fully-assembled and tested Printed Circuit Board (PCB) implementation of the MAX38803. Jumpers, test points, and input/output connectors are included for flexibility and ease-of-use. Refer to the data sheet for ordering information and more details.

Applications

  • DDR memory – VDDQ, VPP and VTT
  • GPU Core Supply
  • I/O and Chipset Supplies
  • Point-of-Load (POL) applications
  • Servers/uServers

MAX38802EVKIT

Evaluation Kit for the MAX38802

Buy Now View Details

Features and Benefits

  • High-Efficiency Solution
    • Up to 97% Peak
    • Up to 87% at Full Load
    • Up to 96% Light-Load Efficiency at 1A with DCM Enabled
  • Inductor Valley Current Limit is Configured to 16A (R_SEL = R1 = 6.04kΩ)
  • Programmable Switching Frequency from 400kHz to 900kHz
  • Programmable Positive and Negative OCP Limit
  • Programmable Reference Voltage with External Input Option
  • Fast Transient Response with Quick PWM™ Architecture
  • Differential Remote Sense with Open-Circuit Detection
  • Percentage-Based Output Power Good and OVP
  • Open-Drain Status Indicator (STAT) Pin
  • Input Undervoltage and Overvoltage Lockout
  • Adaptive Dead Time Control
  • Integrated Boost Switch
  • 27-Bump WLCSP (2.2mm x 3.8mm) Footprint
  • Operation Using Ceramic Input and Output Capacitors

Product Details

The MAX38802 evaluation kit (EV kit) serves as a reference platform for evaluating the MAX38802 voltage regulator IC. This single-chip, integrated switching regulator provides an extremely compact, highly efficient, fast, accurate, and reliable power-delivery solution for low-output voltage applications. The MAX38802 has different programmability options to enable a wide range of configurations.

The EV kit consists of a fully-assembled and tested Printed Circuit Board (PCB) implementation of the MAX38802. Jumpers, test points, and input/output connectors are included for flexibility and ease-of-use. Refer to the data sheet for ordering information and more details.

Applications

  • DDR memory – VDDQ, VPP and VTT
  • GPU Core Supply
  • I/O and Chipset Supplies
  • Point-of-Load (POL) applications
  • Servers/uServers
MAX38803EVKIT
Evaluation Kit for the MAX38803
MAX38802EVKIT
Evaluation Kit for the MAX38802

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