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LM2651MTCX-1.8 from NSC,National Semiconductor

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LM2651MTCX-1.8

Manufacturer: NSC

1.5A High Efficiency Switching Regulator

Partnumber Manufacturer Quantity Availability
LM2651MTCX-1.8,LM2651MTCX18 NSC 27 In Stock

Description and Introduction

1.5A High Efficiency Switching Regulator The LM2651MTCX-1.8 is a high-efficiency, step-down switching regulator manufactured by National Semiconductor (NSC).  

### **Key Specifications:**  
- **Input Voltage Range:** 4V to 14V  
- **Output Voltage:** 1.8V (fixed)  
- **Output Current:** Up to 2A  
- **Switching Frequency:** 300kHz  
- **Efficiency:** Up to 95%  
- **Package:** 16-Pin TSSOP (MTC)  
- **Operating Temperature Range:** -40°C to +125°C  

### **Features:**  
- Synchronous rectification for improved efficiency  
- Low dropout operation  
- Adjustable soft-start  
- Overcurrent and thermal protection  
- Power-saving shutdown mode  
- Internal MOSFET switches  
- Stable with low-ESR ceramic capacitors  

This regulator is designed for applications requiring high efficiency and compact power solutions, such as portable devices and embedded systems.

Application Scenarios & Design Considerations

1.5A High Efficiency Switching Regulator
Partnumber Manufacturer Quantity Availability
LM2651MTCX-1.8,LM2651MTCX18 NS 56988 In Stock

Description and Introduction

1.5A High Efficiency Switching Regulator The LM2651MTCX-1.8 is a switching regulator manufactured by National Semiconductor (NS). Here are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 1.8V  
- **Input Voltage Range:** 4V to 14V  
- **Output Current:** Up to 2A  
- **Switching Frequency:** 300kHz  
- **Efficiency:** Up to 95%  
- **Package:** TSSOP-16  
- **Operating Temperature Range:** -40°C to +125°C  
- **Control Method:** PWM (Pulse Width Modulation)  

### **Descriptions:**
- The LM2651MTCX-1.8 is a step-down (buck) DC-DC converter designed for high-efficiency power conversion.  
- It integrates a high-side and low-side MOSFET for synchronous rectification, reducing external component count.  
- Suitable for applications requiring a stable 1.8V output from a higher input voltage.  

### **Features:**
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Adjustable Soft-Start:** Prevents inrush current at startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Low Quiescent Current:** Enhances efficiency in light-load conditions.  
- **Short-Circuit Protection:** Safeguards the regulator during fault conditions.  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

1.5A High Efficiency Switching Regulator

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