MAX38800

PRODUCTION

Integrated, Step-Down Switching Regulator with Selectable Applications Configurations

9A Fully Integrated, Highly Efficient Switching Regulator

Data Sheet (Rev. O) Product Selection Table

Part Models: 2
1ku List Price: Starting From $3.46

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Overview

High-Efficiency Solution
- Up to 96% Peak
- Up to 95.5% Full Load
- Up to 94% Light-Load Efficiency at 1A with DCM Enabled
Flexible Design Allows Early PCB Definition
- Footprint Compatible with MAX38801 (15A) and MAX38802/MAX38803 (25A)
- 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
- Supports Current Sourcing and Sinking
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-Bump WLCSP (2.2mm x 2.8mm) Footprint
- Operation Using Ceramic Input and Output Capacitors

The MAX38800 is a fully integrated, highly efficient switching regulator for applications operating from 6.5V to 14V input supplies that require up to 9A 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 MAX38800 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.

The device is available in a 19-bump (2.2mm x 2.8mm) WLCSP package that provides low thermal resistance and minimizes the printed circuit board area.

Applications

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

Part Models: 2
1ku List Price: Starting From $3.46

Documentation

Data Sheet 1

MAX38800: Integrated, Step-Down Switching Regulator with Selectable Applications Configurations Data Sheet (Rev.O) 02/12/2018

Evaluation Design File 1

MAX38800 Gerber File 10/10/2022

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
MAX38800HCS+	19-WLCSP-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX38800HCS+T	WLCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 24, 2020 - 2051 MECHANICAL DATASHEET
		pcn_2051
MAX38800HCS+	PRODUCTION	pcn_2051

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Switching Regulators & Controllers 3
MAX38801	PRODUCTION	Integrated, Step-Down Switching Regulator with Selectable Applications Configurations
MAX38803	PRODUCTION	Integrated, Step-Down Switching Regulators with Selectable Applications Configurations
MAX38802	PRODUCTION	Integrated, Step-Down Switching Regulators with Selectable Applications Configurations

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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SIMPLIS Models 1

MAX38800 SIMPLIS Schematic

Evaluation Kits

Evaluation Kit for the MAX38800

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Features and Benefits

High-Efficiency Solution
- Up to 96% Peak
- Up to 95.5% Full-Load
- Up to 94% Light-Load Efficiency at 1A with DCM Enabled
Inductor valley current limit is Configured to 7.5A (R_SEL = R1 = 2.67kΩ)
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
19-Bump WLCSP (2.2mm x 2.8mm) Footprint
Operation Using Ceramic Input and Output Capacitors

Product Details

The MAX38800 evaluation kit (EV kit) serves as a reference platform for evaluating the MAX38800 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 MAX38800 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 MAX38800. 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.