MAX17632

PRODUCTION

4.5V to 36V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Wide Input Voltage, 2A Internal FET Synchronous Buck Converter Ideal for Industrial Applications

Data Sheet (Rev. 2) Product Selection Table

Part Models: 6
1ku List Price: Starting From $1.33

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Overview

Reduces External Components and Total Cost

No Schottky - Synchronous Operation
Internal Compensation Components
All-Ceramic Capacitors, Compact Layout

Reduces Number of DC-DC Regulators to Stock

Wide 4.5V to 36V Input
Adjustable Output Voltage Range from 0.9V up to 90% of V_IN
Delivers up to 2A Over the Temperature Range
400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
Available in a 16-Pin, 3mm x 3mm TQFN Package

Reduces Power Dissipation

Peak Efficiency of 94%
PFM and DCM Modes Enable Enhanced Light-Load Efficiency
Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
2.8μA Shutdown Current

Operates Reliably in Adverse Industrial Environments

Hiccup-Mode Overload Protection
Adjustable and Monotonic Startup with Prebiased Output Voltage
Built-in Output-Voltage Monitoring with RESET
Programmable EN/UVLO Threshold
Overtemperature Protection
High Industrial -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction Temperature Range

The MAX17632 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operating over an input-voltage range of 4.5V to 36V. It can deliver up to 2A current. The MAX17632 is available in three variants, MAX17632A, MAX17632B, and MAX17632C. The MAX17632A and MAX17632B are fixed 3.3V and fixed 5V output parts, respectively. The MAX17632C is an adjustable output voltage (from 0.9V up to 90% of V_IN) part. Built-in compensation across the output-voltage range eliminates the need for external compensation components.

The MAX17632 features peak-current-mode control architecture. The device can be operated in the forced pulse-width modulation (PWM), or pulse-frequency modulation (PFM), or discontinuous-conduction mode (DCM) to enable high efficiency under full-load and light-load conditions. The MAX17632 offers a low minimum on-time that allows high switching frequencies and a smaller solution size.

The feedback-voltage regulation accuracy over -40°C to +125°C for the MAX17632A/MAX17632B/MAX17632C is ±1.2%.The device is available in a 16-pin (3mm x 3mm) TQFN package. Simulation models are available.

Applications

Base Station Power Supplies
Distributed Supply Regulation
General-Purpose Point-of-Load
High Voltage Single-Board Systems
Industrial Control Power Supplies
Wall Transformer Regulation

Part Models: 6
1ku List Price: Starting From $1.33

Documentation

Data Sheet 1

MAX17632: 4.5V to 36V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter Data Sheet (Rev.2) 04/25/2019

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
MAX17632AATE+	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17632AATE+T	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17632BATE+	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17632BATE+T	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17632CATE+	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX17632CATE+T	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 27, 2024 - 2400 ASSEMBLY
		pcn_2400
MAX17632AATE+	PRODUCTION
MAX17632AATE+T	PRODUCTION
MAX17632BATE+	PRODUCTION
MAX17632BATE+T	PRODUCTION
MAX17632CATE+	PRODUCTION
MAX17632CATE+T	PRODUCTION

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

Software Resources

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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.

Start EE-Sim Now

SIMPLIS Models 1

MAX17632 SIMPLIS Schematic

Evaluation Kits

Evaluation Kit for the MAX17632 5V Output-Voltage Application

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Features and Benefits

Operates from a 6.5V to 36V Input Supply
5V Output Voltage
Delivers Up to 2A Output Current
400kHz Switching Frequency
Enable/UVLO Input, Resistor-Programmable UVLO Threshold
Adjustable Soft-Start Time
Open-Drain Active-Low RESET Output
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX17632C 5V output evaluation kit (EV kit) provides a proven design to evaluate the MAX17632C highefficiency, synchronous step-down DC-DC converter. The EV kit provides 5V/2A at the output from a 6.5V to 36V input supply. The switching frequency of the EV kit is preset to 400kHz for optimum efficiency and component size. The EV kit features adjustable input undervoltage lockout, adjustable soft-start, open-drain active-low RESET signal, and external frequency synchronization.

Applications

Base Station Power Supplies
Distributed Supply Regulation
General-Purpose Point-of-Load
High Voltage Single-Board Systems
Industrial Control Power Supplies
Wall Transformer Regulation

Resources

MAX17632C5EVKIT ODB File - Design Files
10/5/2023

Evaluation Kit for the MAX17632 3.3V Output-Voltage Application

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Features and Benefits

Operates from a 4.5V to 36V Input Supply
3.3V Output Voltage
Delivers Up to 2A Output Current
400kHz Switching Frequency
Enable/UVLO Input, Resistor-Programmable UVLO Threshold
Adjustable Soft-Start Time
Open-Drain Active-Low RESET Output
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX17632A 3.3V output evaluation kit (EV kit) provides a proven design to evaluate the MAX17632A highefficiency, synchronous step-down DC-DC converter. The EV kit provides 3.3V/2A at the output from a 4.5V to 36V input supply. The switching frequency of the EV kit is preset to 400kHz for optimum efficiency and component size. The EV kit features adjustable input undervoltage lockout, adjustable soft-start, open-drain active-low RESET signal, and external frequency synchronization.

Applications

Base Station Power Supplies
Distributed Supply Regulation
General-Purpose Point-of-Load
High Voltage Single-Board Systems
Industrial Control Power Supplies
Wall Transformer Regulation

Resources

MAX17632AEVKIT ODB File - Design Files
10/5/2023

Evaluation Kit for the MAX17632 5V Output-Voltage Application

Buy Now View Details

Features and Benefits

Operates from a 6.5V to 36V Input Supply
5V Output Voltage
Delivers Up to 2A Output Current
400kHz Switching Frequency
Enable/UVLO Input, Resistor-Programmable UVLO Threshold
Adjustable Soft-Start Time
Open-Drain Active-Low RESET Output
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested
Complies with CISPR-22(EN55022) Class B Conducted and Radiated Emissions

Product Details

The MAX17632C5EVKITE# evaluation kit (EV kit) provides a proven design to evaluate the MAX17632C high-efficiency, synchronous step-down DC-DC converter. The EV kit provides 5V/2A at the output from a 6.5V to 36V input supply. The switching frequency of the EV kit is preset to 400kHz for optimum efficiency and component size. The EV kit features adjustable input undervoltage lockout, adjustable soft-start, open-drain active-low RESET signal, and external clock synchronization. The EV kit also provides a good layout example, which is optimized for conducted, radiated EMI and thermal performance. For more details about the IC benefits and features, refer to the MAX17632 IC data sheet.

Applications

Base Station Power Supplies
Distributed Supply Regulation
General-Purpose Point-of-Load
High Voltage Single-Board Systems
Industrial Control Power Supplies
Wall Transformer Regulation

Evaluation Kit for the MAX17632 5V Output-Voltage Application

Buy Now View Details

Features and Benefits

Operates from a 6.5V to 36V Input Supply
5V Output Voltage
Delivers Up to 2A Output Current
400kHz Switching Frequency
Enable/UVLO Input, Resistor-Programmable UVLO Threshold
Adjustable Soft-Start Time
Open-Drain Active-Low RESET Output
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX17632B 5V output evaluation kit (EV kit) provides a proven design to evaluate the MAX17632B highefficiency, synchronous step-down DC-DC converter. The EV kit provides 5V/2A at the output from a 6.5V to 36V input supply. The switching frequency of the EV kit is preset to 400kHz for optimum efficiency and component size. The EV kit features adjustable input undervoltage lockout, adjustable soft-start, open-drain active-low RESET signal, and external frequency synchronization.

Applications