MAX20059

Description

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The MAX20059 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter IC with integrated MOSFETs that operates over a 4.5V to 76V input. The converters can deliver up to 1A current. Output voltage is programmable from 0.8V to 90%V_IN. The feedback voltage-regulation accuracy over -40°C to +125°C is ±1.5%.

The IC features a peak-current-mode-control architecture and can be operated in the pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes.

The MAX20059 is available in a 12-pin (3mm x 3mm) side-wettable TDFN package with an exposed pad for thermal heat dissipation.

Key Features

• Synchronous DC-DC Converters with Integrated FETs
  • 72V Input for 48V Systems
  • Internal Compensation
• Flexibility
  • Output Adjustable from 0.8V to 90%V_IN
  • 200kHz to 2200kHz Adjustable Frequency with External Clock Synchronization
  • Programmable Peak Current Limit (1.14A or 1.6A)
• Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing
• Protection Features and Operating Range Ideal for Automotive Applications
  • Programmable EN/UVLO Threshold
  • Adjustable Soft-Start and Prebiased Power-Up
  • Thermal Shutdown
  • -40°C to +125°C Automotive Temperature Range
  • AEC-Q100 Qualified

Applications/Uses

• 48V Systems
• Mild Hybrid Applications