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MAX8645YETI+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX8645YETI+

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX8645YETI+,MAX8645YETI MAXIM 60 In Stock

Description and Introduction

1x/1.5x/2x White LED Charge Pumps with Two LDOs in 4mm x 4mm TQFN The MAX8645YETI+ is a step-down DC-DC converter manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.6V to VIN  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 6-Pin TDFN (2mm x 2mm)  
- **Output Voltage Accuracy:** ±1.5%  

### **Descriptions:**  
The MAX8645YETI+ is a high-efficiency, synchronous step-down DC-DC converter designed for portable applications. It integrates low RDS(ON) switches to minimize power loss and features a fixed-frequency PWM mode for stable operation. The device is optimized for small size and low power consumption, making it suitable for battery-powered systems.  

### **Features:**  
- **High Efficiency:** Up to 95% efficiency with integrated synchronous rectification.  
- **Low Quiescent Current:** 22µA (typical) in operation, 0.1µA in shutdown.  
- **Forced PWM Mode:** Ensures low output ripple and constant frequency operation.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  
- **Adjustable Output Voltage:** Set via an external resistor divider.  

This information is strictly based 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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