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MAX1939EEI from MAXIM,MAXIM - Dallas Semiconductor

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MAX1939EEI

Manufacturer: MAXIM

Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change

Partnumber Manufacturer Quantity Availability
MAX1939EEI MAXIM 200 In Stock

Description and Introduction

Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change The MAX1939EEI is a DC-DC converter manufactured by Maxim Integrated. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX1939EEI  
- **Package:** 28-pin SSOP (Shrink Small Outline Package)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 4.5V to 5.5V  
- **Output Voltage Range:** Adjustable (dependent on configuration)  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 300kHz (typical)  
- **Efficiency:** Up to 95%  

### **Description:**  
The MAX1939EEI is a high-efficiency, step-down DC-DC converter designed for applications requiring high output current with minimal power loss. It integrates synchronous rectification to improve efficiency and reduce external component count. The device features an adjustable output voltage and includes overcurrent and thermal protection.

### **Features:**  
- **Synchronous Rectification:** Improves efficiency and reduces heat dissipation.  
- **Adjustable Output Voltage:** Configurable via external resistors.  
- **High Output Current:** Supports up to 3A.  
- **Wide Input Voltage Range:** 4.5V to 5.5V.  
- **Integrated Protection:** Includes overcurrent and thermal shutdown.  
- **Fixed Switching Frequency:** 300kHz operation for stable performance.  
- **Low Dropout Operation:** Maintains regulation even with small input-output differentials.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change
Partnumber Manufacturer Quantity Availability
MAX1939EEI MAX 111 In Stock

Description and Introduction

Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change The MAX1939EEI is a high-voltage, current-mode PWM controller manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Manufacturer:**  
Maxim Integrated (now part of Analog Devices)  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage:** Adjustable  
- **Switching Frequency:** Up to 1MHz  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin SSOP (Shrink Small Outline Package)  
- **Control Method:** Current-Mode PWM  
- **Duty Cycle Range:** Up to 90%  
- **Protection Features:** Overcurrent, undervoltage lockout (UVLO), and thermal shutdown  

### **Descriptions:**  
The MAX1939EEI is a high-performance PWM controller designed for DC-DC converter applications. It provides precise regulation and high efficiency in power supply designs, supporting step-up (boost), step-down (buck), and flyback topologies.  

### **Features:**  
- Wide input voltage range (4.5V to 28V)  
- Adjustable switching frequency (up to 1MHz)  
- Integrated MOSFET driver  
- Programmable soft-start  
- Current-mode control for improved transient response  
- Overcurrent protection  
- Undervoltage lockout (UVLO)  
- Thermal shutdown protection  
- Low shutdown current  

This information is strictly factual and sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change

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