Key facts
- Brand
- Maxim
- Model
- MAX5033
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-06-05
Start here

MAXIM MAX5033 Step-Down DC-DC Converter Datasheet
The MAX5033 is an easy-to-use, 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. This pulse-width modulated (PWM) converter operates at a fixed 125kHz switching frequency at heavy loads and automatically switches to pulse-skipping mode for high efficiency at light loads.
The device includes internal frequency compensation, undervoltage lockout, cycle-by-cycle current limit, hiccup-mode output short-circuit protection, and thermal shutdown. It is available in fixed (3.3V, 5V, 12V) and adjustable voltage versions within an 8-pin SO or PDIP package.
Maxim MAX5033 specifications
| Output Current | 500mA |
|---|---|
| Input Voltage Range | 7.5V to 76V |
| Switching Frequency | 125kHz |
| Quiescent Current (No Load) | 270µA |
| Efficiency | Up to 94% |
| Package Types | 8-Pin SO and PDIP |
All Maxim MAX5033 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum input voltage?
The device operates from an input voltage up to 76V.
Does it have short-circuit protection?
Yes, it includes hiccup-mode output short-circuit protection and thermal shutdown.
What is the maximum input voltage rating for the MAX5033?
The device can handle an input voltage up to 76 V.
From: Maxim Integrated MAX5033 MAXPower Step-Down DC-DC Converter Datasheet
How much quiescent current does the MAX5033 draw with no load?
It draws only 270 pA of quiescent current at no load.
From: Maxim Integrated MAX5033 MAXPower Step-Down DC-DC Converter Datasheet
What is the maximum output current of the MAX5033?
The MAX5033 can deliver up to 500 mA of output current.
What input voltage range does the MAX5033 support?
The fixed‑output versions accept 7.5 V to 76 V, while the adjustable version accepts 15 V to 76 V.
