Maxim MAX5033 Manuals

The MAX5033 is a high-efficiency, high-voltage step-down DC-DC converter from MAXIM. It is suitable for automotive, consumer electronics, and industrial distributed power applications. The product features a wide input voltage range (7.5V to 76V), fixed (3.3V, 5V, 12V) and adjustable (1.25V to 13.2V) output voltage, and low static current (270µA).

The MAX5033 is an easy-to-use, high-efficiency, high-voltage, step-down DC-DC converter that operates from an input voltage up to 76V and consumes only 270µA quiescent current at no load. It operates as a pulse-width modulated (PWM) converter at a fixed 125kHz switching frequency under heavy loads, and automatically switches to pulse-skipping mode to provide low quiescent current and high efficiency under light loads. The MAX5033 includes internal frequency compensation to simplify circuit implementation. It utilizes an internal low-on-resistance, high-voltage, DMOS transistor to achieve high efficiency and reduce overall system cost. The device incorporates undervoltage lockout, cycle-by-cycle current limit, hiccup-mode output short-circuit protection, and thermal shutdown. The MAX5033 can deliver up to 500mA output current, which may be limited by the package's maximum power dissipation capability. It features external shutdown with a 10µA (typical) shutdown current. The MAX5033A/B/C versions have fixed output voltages of 3.3V, 5V, and 12V, respectively, while the MAX5033D features an adjustable output voltage ranging from 1.25V to 13.2V. The MAX5033 is available in space-saving 8-pin SO and 8-pin plastic DIP packages and operates over the automotive (-40°C to +125°C) temperature range.

The MAX5033 is a high-voltage step-down DC-DC converter from Texas Instruments. It has a maximum input voltage of 76V and can output 3.3V, 5V, or 12V at up to 500mA.