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Preset/Adjustable Output CMOS Inverting Switching Regulators

Product Details

Key Features

Simplified Block Diagram

Technical Docs

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Key Features

  • Preset -5V, -12V, -15V Output Voltages
  • Adjustable Output with 2 Resistors
  • 85% Typ Efficiency
  • Only 3 External Components
  • 80µA Typ Operating Current
  • Low Battery Detector

Applications/Uses

  • Battery Power Conversion
  • Board Level DC-DC Conversion
  • Minimum Component, High -Efficiency DC-DC Converters
  • Portable Instruments

Description

The MAX635/MAX636/MAX637 inverting switching regulators are designed for minimum component DC-DC conversion in the 5mW to 500mW range.

Low power applications require only a diode, output filter capacitor, and a low-cost inductor. An additional MOSFET and driver are needed for higher power applications. Low battery detection circuitry is included on chip.

The MAX635/MAX636/MAX637 are preset for -5V, -12V, -15V outputs, respectively. However, the regulators can be set to other levels by adding 2 resistors.

Maxim manufactures a broad line of step-up, step-down, and inverting DC-DC converters, with features such as logic-level shutdown, adjustable oscillator freuqency, and external MOSFET drive.

Simplified Block Diagram

MAX635, MAX636, MAX637: Pin Configuration MAX635, MAX636, MAX637: Pin Configuration 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.