MAX17575ATC+T

The MAX17575 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 60V input. The converter can deliver up to 1.5A and generates output voltages from 0.9V up to 0.9 × VIN. The feedback (FB) voltage is accurate to within ±1.2% over -40℃ to +125℃. Built-in compensation across the output-voltage range eliminates the need for external components. The MAX17575 features peak-current-mode control architecture and operates in fixed frequency forced PWM mode. The MAX17575 offers a low minimum on-time that allows high switching frequencies and a smaller solution size. The device is available in a 12-pin (3mm × 3mm) TDFN package. Simulation models are available.

Applications

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

Key features

• Reduces External Components and Total Cost
• No Schottky-Synchronous Operation
• Internal Compensation for Any Output Voltage
• All-Ceramic Capacitors, Compact Layout
• Reduces Number of DC-DC Regulators to Stock
• Wide 4.5V to 60V Input
• Adjustable 0.9V to 0.9 × VIN Output
• Continuous 1.5A Current Over Temperature
• 400kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
• Reduces Power Dissipation
• Peak Efficiency of 94%
• Auxiliary Bootstrap LDO for Improved Efficiency
• 4.65μA Shutdown Current
• Operates Reliably in Adverse Industrial Environments
• Hiccup Mode Overload Protection
• Adjustable Soft-Start
• Built-In Output-Voltage Monitoring with RESET
• Programmable EN/UVLO Threshold
• Monotonic Startup into Prebiased Load
• Overtemperature Protection
• High Industrial -40℃ to +125℃ Ambient Operating Temperature Range / -40℃ to +150℃ Junction Temperature Range