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2.2MHz, 3A Buck or Boost Converters with an Integrated High-Side Switch

2.2MHz, High Switching Frequency, DC-DC Converters Deliver Up to 3A

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • 4.5V to 5.5V or 5.5V to 23V Input Voltage Range
  • Output Voltage Adjustable Down to 0.6V (Buck) or Up to 28V (Boost)
  • 3A Output Current
  • Synchronous Rectifier Driver Output (MAX15037) for Higher Efficiency
  • Resistor-Programmable Switching Frequency from 200kHz to 2.2MHz
  • External Synchronization and Enable (On/Off) Inputs
  • Clock Output for Driving Second Converter 180° Out-Of-Phase (MAX15036)
  • Integrated 150mΩ High-Side n-Channel Power MOSFET
  • Power-On-Reset Output (MAX15036)/Power-Good Output (MAX15037)
  • Short-Circuit Protection (Buck)/Maximum Duty-Cycle Limit (Boost)
  • Thermal-Shutdown Protection
  • Thermally Enhanced 16-Pin TQFN Package Dissipates 2.7W

Applications/Uses

  • Automotive Radio Power Supplies
  • IP Phones/WLAN Access Points
  • Servers and Networks
  • xDSL Modem Power Supplies

Description

The MAX15036/MAX15037 high-frequency, DC-DC converters with an integrated n-channel power MOSFET provide up to 3A of load current. The MAX15036 includes an internal power MOSFET to enable the design of a nonsynchronous buck or boost topology power supply. The MAX15037 is for the design of a synchronous buck topology power supply. These devices operate from a 4.5V to 5.5V or 5.5V to 23V input voltage and offer the ability to set the switching frequency from 200kHz to 2.2MHz with an external resistor. The voltage-mode architecture with a peak switch current-limit scheme provides stable operation up to a 2.2MHz switching frequency. The MAX15036 includes a clock output for driving a second DC-DC converter 180° out-of-phase and a power-on-reset (active-low RESET) output. The MAX15037 includes a power-good output and a synchronous rectifier driver to drive an external low-side MOSFET in the buck converter configuration for high efficiency.

The MAX15036/MAX15037 protect against overcurrent conditions by utilizing a peak current limit as well as overtemperature shutdown providing a very reliable and compact power source for point-of-load regulation applications. Additional features include synchronization, internal digital soft-start, and an enable input. The MAX15036/MAX15037 are available in a thermally enhanced, space-saving 16-pin TQFN (5mm x 5mm) package and operate over the -40°C to +125°C temperature range.

Simplified Block Diagram

MAX15036, MAX15037: Pin Configurations MAX15036, MAX15037: Pin Configurations Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.