Top

Integrated, Step-Down Switching Regulator with Selectable Applications Configurations

15A Fully Integrated, Highly Efficient Switching Regulator

Product Details

Key Features

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 6.5
VIN (V) (max) 14
VOUT1 (V) (min) 0.6
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 15
Switch Type Internal
Preset VOUT (V) 1
Output Adjust. Method Dyn. REF In
Preset
Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 900
400
500
600
700
800
Design Tools EE-Sim
Package/Pins WLCSP/19
Budgetary
Price (See Notes)
3.05
View Less

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Parameters

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 6.5
VIN (V) (max) 14
VOUT1 (V) (min) 0.6
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 15
Switch Type Internal
Preset VOUT (V) 1
Output Adjust. Method Dyn. REF In
Preset
Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 900
400
500
600
700
800
Design Tools generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=7180', '')
Package/Pins WLCSP/19
Budgetary
Price (See Notes)
3.05

Key Features

  • High-Efficiency Solution
    • Up to 96% Peak
    • Up to 92% Full Load
    • Up to 94% Light-Load Efficiency at 1A with DCM Enabled
  • Flexible Design Allows Early PCB Definition
    • Footprint Compatible with MAX38800 (9A) and MAX38802/MAX38803 (25A)
    • Programmable Switching Frequency up to 900kHz
    • 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
    • 19-Ball WLCSP (2.2mm x 2.8mm) Footprint
    • Operation Using Ceramic Input and Output Capacitors

Applications/Uses

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

Description

The MAX38801 is a fully integrated, highly efficient switching regulator for applications operating from 6.5V to 14V input supplies that require up to 15A maximum load. This single-chip regulator provides compact high-efficiency power delivery for precision outputs that demand fast transient response.

The device has different programmability options to enable a wide range of configurations. The programmable features include: internal/external reference voltage, output voltage set-point, switching frequency, overcurrent-protection level (OCP), and soft-start timing. Discontinuous current mode (DCM) operation can be enabled using pinstrapping to improve light-load efficiency.

The MAX38801 includes 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 damages 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.

Simplified Block Diagram

MAX38801: Functional (or Block) Diagram MAX38801: Functional (or Block) Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .