MAX5033DASA+

The MAX5033DASA+ is an easy-to-use, high-efficiency, high-voltage, Step-down DC-DC Converter operates from an input volt­age up to 76V and consumes only 270μA quiescent cur­rent at no load. This pulse-width modulated (PWM) con­verter operates at a fixed 125kHz switching frequency at heavy loads and automatically switches to pulse skipping mode to provide low quiescent current and high efficiency at light loads. The MAX5033 includes internal frequency compensation simplifying circuit implementation. The device uses an internal low-on resistance, high-voltage, DMOS transistor to obtain high efficiency and reduce overall system cost. This device includes under-voltage lockout, cycle-by-cycle current limit, hiccup-mode output short-circuit protection and thermal shutdown. The MAX5033 delivers up to 500mA output current.

• Efficiency up to 94%
• Internal 0.4Ω high-side DMOS FET
• 270µA Quiescent current at no load and 10µA shutdown current
• Internal frequency compensation
• Thermal shutdown and short-circuit current limit
• Consumer Electronics; Distributed Power; Industrial

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Note

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