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MAX8645XETI from MAXIM,MAXIM - Dallas Semiconductor

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MAX8645XETI

Manufacturer: MAXIM

1x/1.5x/2x White LED Charge Pumps with Two LDOs in 4mm x 4mm TQFN

Partnumber Manufacturer Quantity Availability
MAX8645XETI MAXIM 132 In Stock

Description and Introduction

1x/1.5x/2x White LED Charge Pumps with Two LDOs in 4mm x 4mm TQFN The MAX8645XETI is a power management IC (PMIC) manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on available data:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (Analog Devices)  
- **Package:** 28-pin TQFN (Thin Quad Flat No-Lead)  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** Adjustable (typically 0.6V to 3.3V)  
- **Output Current:** Up to 600mA (buck regulator)  
- **Switching Frequency:** 2.25MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The MAX8645XETI is a high-efficiency, step-down (buck) DC-DC converter designed for portable and low-power applications. It integrates synchronous rectification to minimize power loss and supports low-dropout (LDO) operation for improved efficiency.  

### **Features:**  
- **High Efficiency:** Synchronous rectification and low quiescent current (~30µA).  
- **Adjustable Output:** Programmable via external resistors.  
- **Low Dropout Mode:** Maintains regulation even when input voltage approaches output voltage.  
- **Power-Saving Modes:** Includes pulse-skipping and forced-PWM modes.  
- **Integrated Protection:** Overcurrent, overtemperature, and undervoltage lockout (UVLO).  
- **Small Footprint:** 28-pin TQFN package (4mm x 4mm).  

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

Application Scenarios & Design Considerations

1x/1.5x/2x White LED Charge Pumps with Two LDOs in 4mm x 4mm TQFN

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