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Home » NEWEST Products » New by Manufacturer » Maxim Integrated » Maxim MAX17501/02/03 Step-Down DC-DC Converters
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Maxim MAX17501/02 Step-Down DC-DC Converters
Maxim MAX17501/02 Step-Down DC-DC Converters

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Maxim MAX17501/02/03 Step-Down DC-DC Converters

Maxim Integrated MAX17501 / MAX17502 / MAX17503 high-efficiency, high-voltage, synchronous step-down DC-DC converters with integrated MOSFETs operate over a 4.5V to 60V input voltage range. MAX17501 delivers output currents up to 500mA at output voltages of 0.9V to 92%VIN, MAX17502 delivers output currents up to 1A, and MAX17503 delivers output currents up to 2.5A. The output voltage is accurate to within ±1.7% over -40°C to +125°C. These Maxim Integrated devices feature peak-current-mode control with pulse-width modulation (PWM). With the MAX17501, users can choose devices with either pulse frequency modulation (PFM) or forced PWM scheme. PFM devices skip pulses at light load for higher efficiency, while forced-PWM devices operate with fixed switching frequency at any load for noise sensitive-applications. MAX17502 operates with fixed switching frequency at any load. MAX17503 users can select either PWM, PFM, or DCM mode. The low-resistance, on-chip MOSFETs ensure high efficiency at full load and simplify the layout. A programmable soft-start feature allows users to reduce input inrush current. These step-down DC-DC converters also incorporate an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn on the part at the desired input voltage level.

Features
  • No Schottky-Synchronous Operation for High Efficiency and Reduced Cost
  • Internal Compensation and Feedback Divider for 3.3V and 5V Outputs
  • All-Ceramic Capacitors, Ultra-Compact Layout
  • Wide 4.5V to 60V Input Voltage Range
  • 0.9V to 92%VIN Output Voltage
  • Delivers up to 500mA (MAX17501), 1A (MAX17502), or 2.5A (MAX17503)
  • 600kHz and 300kHz Switching Frequency Options
  • Reduces Power Dissipation
    • Peak Efficiency > 90%
    • PFM Feature for High Light-Load Efficiency (MAX17501)
Applications
  • Industrial Process Control
  • HVAC and Building Control
  • Base Station, VOIP, Telecom
  • Home Theater
  • Automotive
  • Battery-Powered Equipment
  • General-Purpose Point-of-Load
MAX17501 Block Diagram
MAX71501 Block Diagram
MAX17502 Block Diagram
MAX17502 Block Diagram
MAX17503 Block Diagram
MAX17502 Block Diagram

Part Number Input Voltage MAX Number of Outputs Output Current Switching Frequency
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