MAXREFDES1045, Two-Layer Board, 5V/3A Wide-Input, Synchronous Step-Down DC-DC Converter Reference Design Using MAX17574
Reference Design using part MAX17574 by Analog Devices
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For End Products
- High-Current Applications
- Low-Voltage Applications
Description
- MAXREFDES1045, Reference Design for the MAX17574, 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 3A current. Output voltage is programmable from 0.9V to 90%VIN. The feedback voltage regulation is accurate to within ±0.9% over -40 to +125 degree C. The MAX17574 features a peak-current-mode control architecture. The device can be operated in the pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous-conduction mode (DCM) control schemes. A programmable soft-start feature allows users to reduce input inrush current. The device also incorporates an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn on the part at the desired input voltage level
Key Features
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Conversion TypeDC to DC
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Input Voltage12 to 48 V
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Output Voltage5 V
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Output Current3 A
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Output Power15 W
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Efficiency95 %
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TopologyBuck- Synchronous
Featured Parts (2)
| Part Number | Manufacturer | Type | Description | |||
|---|---|---|---|---|---|---|
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MAX17574ATG+ | Analog Devices | DC to DC Converter and Switching Regulator Chip | Conv DC-DC 4.5V to 60V Synchronous Step Down Single-Out 0.9V to 54V 24-Pin TQFN EP Tray | Buy | |
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MAX17574ATG+T | Analog Devices | DC to DC Converter and Switching Regulator Chip | Conv DC-DC 4.5V to 60V Synchronous Step Down Single-Out 0.9V to 54V 24-Pin TQFN EP T/R | Buy | |