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MAX1570ETE from MAXIM,MAXIM - Dallas Semiconductor

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MAX1570ETE

Manufacturer: MAXIM

White LED Current Regulator with 1x/1.5x High-Efficiency Charge Pump

Partnumber Manufacturer Quantity Availability
MAX1570ETE MAXIM 2180 In Stock

Description and Introduction

White LED Current Regulator with 1x/1.5x High-Efficiency Charge Pump The MAX1570ETE is a white LED step-up converter manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage:** Up to 22V (adjustable)  
- **Maximum Output Current:** 30mA per LED (up to 6 LEDs in series)  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 85%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Pin TQFN (5mm x 5mm)  

### **Descriptions:**  
The MAX1570ETE is a high-efficiency, step-up DC-DC converter designed to drive up to six white LEDs in series. It is optimized for backlighting applications in portable devices such as smartphones, PDAs, and digital cameras. The device features an internal MOSFET and uses a current-mode PWM control scheme for stable operation.  

### **Features:**  
- **High-Efficiency LED Driver:** Up to 85% efficiency  
- **PWM Dimming Control:** Supports external PWM dimming for brightness adjustment  
- **Overvoltage Protection (OVP):** Protects LEDs from excessive voltage  
- **Soft-Start:** Reduces inrush current during startup  
- **Low Shutdown Current:** <1µA in shutdown mode  
- **Thermal Shutdown:** Prevents overheating  

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

Application Scenarios & Design Considerations

White LED Current Regulator with 1x/1.5x High-Efficiency Charge Pump

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