The MAX631, MAX632, and MAX633 are +5V, + 12V, and +15V fixed output, step-up DC-DC converters for use in low-power, high-efficiency switching regulator applica­ tions. The only external components required are an output filter capacitor and a low-cost inductor. Included on-chip are low battery detection circuitry and a charge pump output for generating a negative voltage in dual­ supply applications. Though most simply used as fixed output regulators, the Ordering Information MAX631/632/633 can also be set for other output volt­ ages by adding an external voltage divider. Maxim manufactures a broad line of step-up, step-down, and inverting DC-DC converters, with features such as logic-level shutdown, adjustable oscillator frequency, and external MOSFET drive. APPLICATIONS * Minimum Component, High-Efficiency * DC-DC Converters * Portable Instruments * Rechargeable and Primary Battery Power Conversion * Uninterruptable On-Board Power Supplies * Card Level Multiple Power Conversion * Fixed +SV, +12V, +15V Output Voltages * Adjustable Output with 2 Resistors * 80% Typ Efficiency * Only 2 External Components * Charge Pump for Negative Output * 135µA Typ Operating Current https://elecena.pl/product/22330942/cmos-fixed-adjustable-output-step-up-switching-regulators 2022-12-28 https://elecena.pl/product/22330942/cmos-fixed-adjustable-output-step-up-switching-regulators 2025-01-22