Current-Limited Switch for Two USB Ports The MAX1930ESA+ is a high-efficiency, step-down DC-DC converter manufactured by **MAXIM** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual data:
### **Specifications:**
- **Manufacturer:** MAXIM (Analog Devices)
- **Part Number:** MAX1930ESA+
- **Package:** 8-SOIC (150mil)
- **Input Voltage Range:** 4.5V to 28V
- **Output Voltage Range:** Adjustable from 1.25V to 26V
- **Output Current:** Up to 300mA
- **Switching Frequency:** 500kHz
- **Efficiency:** Up to 95%
- **Operating Temperature Range:** -40°C to +85°C
- **Regulation Type:** PWM (Pulse-Width Modulation)
- **Protection Features:** Overcurrent and thermal shutdown
### **Descriptions:**
The MAX1930ESA+ is a **step-down (buck) DC-DC converter** designed for high-efficiency power conversion in applications requiring a lower output voltage from a higher input voltage. It operates at a fixed **500kHz switching frequency**, allowing for compact external components. The device includes an **internal N-channel MOSFET switch** for improved efficiency and supports adjustable output voltage via external resistors.
### **Features:**
- **Wide Input Voltage Range (4.5V to 28V)** – Suitable for various power sources.
- **High Efficiency (Up to 95%)** – Minimizes power loss.
- **Adjustable Output Voltage (1.25V to 26V)** – Flexible for different applications.
- **500kHz Fixed Switching Frequency** – Reduces component size.
- **Internal N-Channel MOSFET Switch** – Simplifies design and improves efficiency.
- **Low Quiescent Current (200µA typical)** – Enhances battery life in portable applications.
- **Overcurrent and Thermal Shutdown Protection** – Ensures safe operation.
- **SOIC-8 Package** – Compact and easy to integrate.
This information is strictly based on the manufacturer's datasheet and technical documentation.
