MAX17232

RECOMMENDED FOR NEW DESIGNS

3.5V–36V, 2.2MHz, Synchronous Dual Buck Controller with 20μA Quiescent Current

Synchronous Dual Buck Controller with Wide V_IN (3.5V to 42V) and Low I_Q (20μA)

Data Sheet (Rev. 1) Product Selection Table

Part Models: 2
1ku List Price: Starting From $3.24

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Part Details

Eliminates External Components and Reduces Total Cost
- No Schottky-Synchronous Operation for High Efficiency and Reduced Cost
- Simple External RC Compensation for Stable Operation at Any Output Voltage
- All-Ceramic Capacitor Solution: Ultra-Compact Layout
- 180° Out-of-Phase Operation Reduces Output Ripple and Enables Cascaded Power Supplies
Reduces Number of DC-DC Controllers to Stock
- Fixed Output Voltage with ±1% Accuracy (5V/3.3V)or Externally Resistor Adjustable (1V to 10V)
- 220kHz to 2.2MHz Adjustable Frequency with External Synchronization
- Frequency Synchronization Input
Reduces Power Dissipation
- 92% Peak Efficiency
- 8μA (typ) in Shutdown
- 20μA (typ) Quiescent Current in PFM Mode
Operates Reliably
- 42V Input Voltage Transient Protection
- Cycle-by-Cycle Current Limit, Thermal Shutdown
- Supply Overvoltage and Undervoltage Lockout
- Power-OK Monitor
- Reduced EMI Emission with Spread-Spectrum Control
- 50ns (typ) Minimum On-Time Guarantees PWM Operation at Low Duty Cycle at 2.2MHz

Part Models: 2
1ku List Price: Starting From $3.24

Documentation

Data Sheet 1

MAX17232-MAX17233: 3.5V–36V, 2.2MHz, Synchronous Dual Buck Controller with 20μA Quiescent Current Data Sheet (Rev.1) 11/20/2017

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
MAX17232ETIR+	28-LFCSP-5X5X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX17232ETIR+T	28-LFCSP-5X5X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN
No Match Found
Sep 22, 2017 - 1681A WAFER FAB
		pcn_1681a
MAX17232ETIR+	PRODUCTION	pcn_1681a

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

Hardware Ecosystem

Parts	Product Life Cycle	Description
Micropower Buck Regulators 1
MAX17231	PRODUCTION	2V–36V, Synchronous Dual Buck Controller with Integrated Boost and 20μA Quiescent Current
Multiple Output Buck Regulators 1
MAX17230		2V–36V, Synchronous Dual Buck Controller with Integrated Boost and 20μA Quiescent Current

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

MAX17232 SIMPLIS Schematic

Evaluation Kits

Evaluation Kit for the MAX17232 / MAX17233

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Features and Benefits

Dual, Synchronous Step-Down Controllers Operate at 180° Out-of-Phase to Reduce Switching Noise
6V to 36V Wide Input Supply Range
Buck Output Voltage: 5V and 3.3V Fixed/Adjustable Between 1V and 10V
Current-Mode Controllers with Forced-PWM and Skip Modes
Resistor-Configurable Frequency Between 1MHz and 2.2MHz
89% Peak Efficiency @ 6V Input in Skip-Mode
FSYNC Input and Power-Good Output
Proven 4-Layer 2oz Copper PCB Layout
Demonstrates 2800mil × 1300mil Solution Size
Fully Assembled and Tested

Product Details

The MAX17233 evaluation kit (EV kit) is a fully assembled and tested application circuit board for the MAX17233 high-voltage, dual synchronous step-down controller. The EV kit is set up to provide 5V and 3.3V from an input voltage ranging from 6V to 36V. Each buck rail can deliver up to 5A load current. The EV kit’s switching frequency is set at 2.2MHz for both buck converters. Various jumpers are provided to help evaluate features of the MAX17233 IC.

Applications

Distributed Supply Regulation
General-Purpose Point-of-Load
Wall Transformer Regulation

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