Key facts
- Brand
- Maxim
- Model
- MAX503
- Category
- Other Electronics
- Documents
- 7
- Languages
- EN
- Last added
- 2012-06-05
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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 MAX503 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 MAX503 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- MAXIM MAX5033 Step-Down DC-DC Converter Datasheet 18 p
- Maxim Integrated MAX5033 MAXPower Step-Down DC-DC Converter Datasheet 17 p
- Maxim MAX503 5V Low-Power Parallel-Input Voltage-Output 10‑Bit DAC Datasheet 16 p
- Maxim MAX5038A/MAX5041A Dual‑Phase PWM Controller Datasheet 26 p
- Maxim MAX5038/MAX5041 Dual-Phase PWM Controller Datasheet 26 p
- Maxim MAX5035 Step-Down DC-DC Converter Datasheet 17 p
- Maxim MAX5033 Step-Down DC-DC Converter Datasheet 17 p
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 operating current of the MAX503?
The MAX503 draws about 250 µA from a single 5 V supply.
From: Maxim MAX503 5V Low-Power Parallel-Input Voltage-Output 10‑Bit DAC Datasheet
What internal reference voltage does the MAX503 provide?
It includes an internal 2.048 V voltage reference.
From: Maxim MAX503 5V Low-Power Parallel-Input Voltage-Output 10‑Bit DAC Datasheet