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MAX1577ZETA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1577ZETA+

Manufacturer: MAXIM

1.2A White LED Regulating Charge Pump for Camera Flashes and Movie Lights

Partnumber Manufacturer Quantity Availability
MAX1577ZETA+,MAX1577ZETA MAXIM 57 In Stock

Description and Introduction

1.2A White LED Regulating Charge Pump for Camera Flashes and Movie Lights The **MAX1577ZETA+** is a white LED step-up converter manufactured by **MAXIM** (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage:** Up to 29V (adjustable)  
- **Number of LED Channels:** 4  
- **LED Current per Channel:** Up to 30mA  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 87%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin TDFN (3mm x 3mm)  

### **Descriptions:**  
The **MAX1577ZETA+** is designed to drive up to four white LEDs in series, providing uniform brightness. It features a high-efficiency step-up converter with a fixed-frequency PWM control scheme. The device includes built-in overvoltage protection and thermal shutdown for safety.  

### **Features:**  
- **High-Efficiency Step-Up Converter** for white LED backlighting  
- **Automatic Overvoltage Protection (OVP)**  
- **Thermal Shutdown Protection**  
- **Low 0.3µA Shutdown Current**  
- **PWM Brightness Control**  
- **Small 8-Pin TDFN Package**  

This device is commonly used in portable electronics such as smartphones, PDAs, and LCD displays requiring efficient LED backlighting.

Application Scenarios & Design Considerations

1.2A White LED Regulating Charge Pump for Camera Flashes and Movie Lights

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