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MAX157BEUA+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX157BEUA+T

Manufacturer: MAXIM

+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin µMAX

Partnumber Manufacturer Quantity Availability
MAX157BEUA+T,MAX157BEUAT MAXIM 2500 In Stock

Description and Introduction

+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin µMAX **Manufacturer:** MAXIM (now part of Analog Devices)  

**Part Number:** MAX157BEUA+T  

### **Specifications:**  
- **Type:** High-Efficiency, 1x/2x Charge Pump for White LEDs  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage:** Adjustable (up to 5.5V)  
- **Number of Outputs:** 4  
- **Output Current:** Up to 30mA per LED  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin µMAX (3mm x 3mm)  

### **Descriptions:**  
The MAX157BEUA+T is a high-efficiency charge pump designed to drive up to four white LEDs with regulated current. It features automatic switching between 1x and 2x modes for optimal efficiency. The device includes individual enable controls for each LED and provides soft-start functionality to reduce inrush current.  

### **Features:**  
- Automatic 1x/2x charge pump mode switching  
- Up to 30mA per LED output current  
- Individual enable control for each LED  
- Soft-start to limit inrush current  
- Low 0.5µA shutdown current  
- Thermal shutdown protection  
- Tiny 8-pin µMAX package  

This part is commonly used in portable devices requiring efficient LED backlighting.  

(Note: Always verify datasheet details for the latest specifications.)

Application Scenarios & Design Considerations

+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin µMAX

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