High-Voltage PWM Power-Supply Controller The MAX5003EEE+ is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices).
### **Specifications:**
- **Input Voltage Range:** 4V to 30V
- **Output Voltage Range:** 1.25V to 28V (adjustable)
- **Output Current:** Up to 500mA
- **Switching Frequency:** 500kHz (fixed)
- **Efficiency:** Up to 95%
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** 16-QSOP (Quad Flat Small Outline Package)
- **Regulation Type:** PWM (Pulse-Width Modulation)
- **Features:**
- Internal N-channel MOSFET switch
- Low dropout operation
- Soft-start capability
- Overcurrent and thermal protection
- Adjustable output voltage
### **Descriptions and Features:**
The MAX5003EEE+ is a synchronous step-down DC-DC converter designed for high-efficiency power conversion in applications requiring a compact and reliable solution. It integrates a power MOSFET switch, reducing external component count. The device operates at a fixed 500kHz switching frequency, allowing for small external components and minimizing output ripple.
Key features include:
- **Wide Input Voltage Range:** Supports operation from 4V to 30V, making it suitable for automotive, industrial, and battery-powered applications.
- **Adjustable Output Voltage:** The output can be set from 1.25V to 28V using an external resistor divider.
- **High Efficiency:** Up to 95% efficiency due to synchronous rectification and low dropout operation.
- **Protection Features:** Includes overcurrent and thermal shutdown protection for enhanced reliability.
- **Soft-Start:** Reduces inrush current during startup.
This device is commonly used in point-of-load regulation, industrial controls, automotive systems, and portable electronics.
