MAX17572 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – 4.5V–60V, 1A, High-Efficiency, Synchronous

MAX17572
EVALUATION KIT AVAILABLE
4.5V–60V, 1A, High-Efficiency, Synchronous
Step-Down DC-DC Converter
with Internal Compensation
General Description
The MAX17572 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 1A and generates output voltages from 0.9V
up to 0.9 x V_IN. The feedback (FB) voltage is accurate to
within ±1.2% over -40°C to +125°C. The MAX17572 uses
peak current-mode control.
The device is available in a 12-pin (3mm x 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
Benefits and 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 x V_IN Output
• Continuous 1A Current Over Temperature
• 400kHz to 2.2MHz Adjustable Switching Frequency
with External Synchronization
●● Reduces Power Dissipation
• Peak Efficiency > 92%
• 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°C to +125°C Ambient Operating
Temperature Range/-40°C to +150°C Junction
Temperature Range
Ordering Information appears at end of data sheet.
19-8640; Rev 0; 9/16