MAX20039

Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

Industry's First 2Mhz Automotive Buck-Boost Converter Operates Seamlessly from 2V Cold Crank to VBATT


Please check latest availability status for a specific part variant.

Description

The MAX20039/MAX20040 ICs are a small, synchronous buck-boost converter family with integrated high-side and low-side switches. The MAX20040 is designed to deliver up to 1.2A with input voltages from 2V to 36V while using only 52μA quiescent current at no load .The ICs provide an accurate output voltage of ±2%. Voltage quality can be monitored by observing the PGOOD signal.

The MAX20039/40 offer a fixed output voltage of 5V and a programmable range of 4.0V to 15V. See Ordering Information for more details. Frequency is adjustable from 220kHz to 2.2MHz, which allows for small external components, reduced output ripple, and guarantees no AM interference. Skip mode with low quiescent current of 52uA is available in the 'MAX20040B' and 'MAX20040D' versions of the IC. The ICs can operate with spreadspectrum frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.

The MAX20039/MAX20040 are available in a small (4mm x 4mm), 20-pin, side-wettable TQFN package and use very few external components.

Design Solution: Provide a Safe Power Path from the Car Battery to Remote Cameras ›

Key Features

  • Meets Stringent Automotive Quality and Reliability Requirements
    • 2V to 36V Operating VIN Allows Operation in “Cold-Crank” Conditions
    • Tolerates Input Transients Up to 40V
    • EN Pin Compatible from 3.3V to 40V
    • 0.6A (max) Output Current (MAX20039)
    • 1.2A (max) Output Current (MAX20040)
    • -40°C to +125°C Automotive Temperature Range
    • AEQ-100 Qualified
    • Increased Efficiency with Reduced BOM Cost and Board Space
    • Integrated FETs H-Bridge Architecture
    • Fixed Output Voltages
    • 20-Pin SWTQFN Package
  • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
    • 52µA Quiescent Current when in Standby Mode
    • 10µA (max) Quiescent Current in Shutdown Mode
  • High Switching Frequency Allows Use of Small External Components
    • 200kHz to 2.2MHz Operating Frequency
    • Skip Mode for Efficient Low-Power Operation (B and D version only)
    • Fixed-Frequency PWM Mode
    • External Frequency Synchronization
  • Reduced EMI Emissions at the Switching Frequency
    • Spread Spectrum Can be Enabled or Disabled

Applications/Uses

  • Body Electronics
  • Infotainment Systems
  • Point-of-Load Power Supply
  • Power over Coax
  • Start-Stop Systems

See parametric specs for Step-Down/Up Switching Regulators (33)


Part NumberVIN
(V)
VIN
(V)
IOUT1
(A)
(min)(max)(max)
MAX20039 2400.6
MAX20040 1.2

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX20040EVKIT: Evaluation Kit for the MAX20039/MAX20040

Tools & Models

  • EE-Sim: Design & Simulate MAX20039
  • Request Reliability Report for: MAX20039 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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