MAX17571

RECOMMENDED FOR NEW DESIGNS

4V to 60V, 1.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $1.48

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Part Details

Reduces External Components and Total Cost
- No Schottky—Synchronous Operation
- Internal Compensation
- All-Ceramic Capacitors, Compact Layout
Reduces Number of DC-DC Regulators to Stock
- Wide 4V to 60V Input-Voltage Range
- Adjustable Output Voltage Range from 0.9V up to 90% of V_IN
- 400kHz to 2.2MHz Adjustable Switching Frequency with External Clock Synchronization
Reduces Power Dissipation
- 94% Peak Efficiency
- External Bias Input for Improved Efficiency
- 4.65μA Shutdown Current

Operates Reliably in Adverse Industrial Environments
- Built-in Hiccup Mode Overload Protection
- Built-in Output-Voltage Monitoring with RESET
- Adjustable Soft-Start
- Programmable EN/UVLO Threshold
- Monotonic Startup into Prebiased Output Voltage
- Overtemperature Protection
- CISPR 32 Class B Compliant

Part Models: 2
1ku List Price: Starting From $1.48

Documentation

Data Sheet 1

MAX17571: 4V to 60V, 1.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter Data Sheet (Rev.0) 05/04/2023

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
MAX17571ATC+	Thin Dual Flatpack No Leads	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX17571ATC+T	Thin Dual Flatpack No Leads	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 27, 2024 - 2400 ASSEMBLY
		pcn_2400
MAX17571ATC+	PRODUCTION
MAX17571ATC+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.

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SIMPLIS Models 1

MAX17571 SIMPLIS Model

Evaluation Kits

Evaluates: MAX17571 in 5V and 3.3V Output-Voltage Applications

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Features and Benefits

Operates over a Wide Input Range

MAX17571EVKITA#: V_OUT1 = 3.3V

I_OUT1 = 1.5A, V_IN1 Range = 4.7V to 60V
I_OUT1 = 0.6A, V_IN1 Range = 4V to 60V

MAX17571EVKITB#: V_OUT2 = 5V

_IOUT2 = 1.5A, V_IN2 Range = 6.5V to 60V
I_OUT2 = 0.25A, V_IN2 Range = 5.5V to 60V

Enable/UVLO Input, Resistor-Programmable UVLO Threshold

Adjustable Soft-Start Time
RESET Output with a Pullup Resistor to an External Supply
External Clock Synchronization
Overcurrent and Overtemperature Protection
Proven PCB Layout
Fully Assembled and Tested
Complies with CISPR 32 (EN55032) Class B Conducted and Radiated Emissions

Product Details

The MAX17571 evaluation kit (EV kit) provides a proven design to evaluate the MAX17571 high-efficiency, high-voltage Himalaya synchronous DC-DC converters.

The EV kit comprises 3.3V (V_OUT1) and 5V (V_OUT2) output voltage application circuits, which operate at 500kHz switching frequency. The 3.3V application circuit delivers load current up to 1.5A over a 4.7V to 60V input voltage range. The 5V application circuit delivers load current up to 1.5A over a 6.5V to 60V input voltage range. The EV kit can also deliver load current of 0.6A from a 4V input supply for 3.3V application circuit and 0.25A from a 5.5V input supply for 5V application circuit.

Each application circuit on the EV kit features adjustable input undervoltage lockout (UVLO), adjustable soft-start, open-drain RESET signal, and external clock synchronization. The EV kits also provide a good layout example, which is optimized for conducted, radiated electromagnetic interference (EMI), and thermal performance. For more details, refer to the Product Highlights section in the MAX17571 IC data sheet.

Resources

MAX17571EVKIT Gerber Files
5/4/2023

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