Create a design and simulate using EE-Sim tools: MAX17521ATG+
The MAX17521ATG+ dual-output, 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 at each output. Each output is programmable from 0.9V to 92%VIN. The feedback voltage regulation accuracy over -40°C to +125°C is ±1.7%. The MAX17521ATG+ uses peak-current-mode control. Each output can be operated in the pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. The MAX17521ATG+ is available in a 24-pin (4mm x 5mm) TQFN package. Simulation models are available.Feature
- Reduces External Components and Total Cost
- No Schottky—Synchronous Operation
- All-Ceramic Capacitors, Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4.5V to 60V Input
- Each Output Adjustable From 0.9V to 92%VIN
- Pin-Selectable 560kHz or 300kHz Switching Frequency
- Independent Input Voltage Pin for Each Output
- Reduces Power Dissipation
- Peak Efficiency > 90%
- PFM Mode Enables Enhanced Light-Load Efficiency
- 1μA Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Hiccup Mode Overload Protection
- Adjustable Soft-Start Pin for Each Output
- Built-In Output Voltage Monitoring with Active-Low RESET for Each Output
- Adjustable EN/UVLO Threshold for Each Output
- 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
Applications
- CPU, DSP, or FPGA Power
- Distributed Supply Regulation
- General-Purpose Point of Load
- Industrial Control Power Supplies
