MAX17524
4.5V to 60V, Dual 3A, High-Efficiency, Synchronous Step-Down DC-DC Converter
Industry's First 60V, 3A Dual Synchronous Step-Down DC-DC Converter
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Overview
Features and Benefits
- 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 60V Input
- Adjustable Output Range from 0.9V up to 90% of VIN
- Delivers up to 3A on Each Output Over the Temperature Range
- 100kHz to 1.1MHz Adjustable Frequency with External Clock Synchronization
- Available in a 32-Pin, 5mm x 5mm TQFN Package
- Independent Input-Voltage Pins for Each Output
- Reduces Power Dissipation
- Peak Efficiency of 94.4%
- PFM and DCM Modes Enable Enhanced Light-Load Efficiency
- Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
- 5.2μA Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Hiccup-Mode Overload Protection
- Independent Adjustable Soft-Start Pin and Programmable EN/UVLO Pin for Each Output
- Monotonic Startup with Prebiased Output Voltage
- Built-in Independent Output-Voltage Monitoring with Active-Low RESET for Each Output
- Overtemperature Protection
- High Industrial -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction
Product Details
The MAX17524 dual 3A, high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated high-side MOSFETs operates over an input-voltage range of 4.5V to 60V. The device can deliver up to 3A on each output and generates output voltages from 0.9V up to 90% of VIN. This device features internal compensation.
The MAX17524 uses peak current-mode control, and can be operated in pulse-width modulation (PWM), pulse-frequency modulation (PFM), and discontinuous-conduction mode (DCM) to enable high efficiency under light-load conditions.
The feedback-voltage regulation accuracy is accurate to within ±1.4% over -40°C to +125°C. The device is available in a 32-pin (5mm x 5mm) Thin QFN (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
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (2)
Documentation & Resources
Tools & Simulations
EE-Sim Power® Tools
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.
SIMPLIS Models
Design Resources
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.