MAX635

PRODUCTION

Preset/Adjustable Output CMOS Inverting Switching Regulators

Analog Devices MAX635 Product Info

10 February 2026 6

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

Part details & applications

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.

Applications

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

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