Update: 29 September, 2023
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.
File format: PDF
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MD5 Checksum: 6B1AF9E2AE60C9D6B67CE08E27FEDA52
Publication date: 12 April, 2012
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PDF Link: MAXIM INTEGRATED PRODUCTS MAX5033 MAXPower Step-Down DC-DC Converter handbook PDF