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LM2623MMX from NS/TI,National Semiconductor

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LM2623MMX

Manufacturer: NS/TI

General Purpose, Gated Oscillator Based, DC/DC Boost Converter

Partnumber Manufacturer Quantity Availability
LM2623MMX NS/TI 14500 In Stock

Description and Introduction

General Purpose, Gated Oscillator Based, DC/DC Boost Converter The LM2623MMX is a step-up DC-DC switching regulator manufactured by Texas Instruments (TI) (formerly National Semiconductor (NS)).  

### **Specifications:**  
- **Input Voltage Range:** 0.8V to 14V  
- **Output Voltage Range:** Up to 14V (adjustable via external resistors)  
- **Output Current Capability:** Up to 1.5A (switch current limit)  
- **Switching Frequency:** 300kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 10-pin VSSOP (MSOP)  

### **Descriptions:**  
The LM2623MMX is a high-efficiency, step-up DC-DC converter designed for battery-powered and low-voltage applications. It integrates a power MOSFET switch and provides a regulated output voltage from a low input supply.  

### **Features:**  
- **Low Start-up Voltage:** Operates down to 0.8V  
- **Integrated Power MOSFET:** Reduces external component count  
- **Adjustable Output Voltage:** Set via external resistors  
- **Low Quiescent Current:** 17µA (typical) in shutdown mode  
- **Soft-Start Function:** Prevents inrush current at startup  
- **Thermal Shutdown Protection:** Prevents overheating  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation at low input voltages  

This device is commonly used in portable electronics, battery-powered systems, and applications requiring voltage boosting from low-voltage sources.

Application Scenarios & Design Considerations

General Purpose, Gated Oscillator Based, DC/DC Boost Converter
Partnumber Manufacturer Quantity Availability
LM2623MMX NS 1461 In Stock

Description and Introduction

General Purpose, Gated Oscillator Based, DC/DC Boost Converter The LM2623MMX is a high-efficiency, step-up DC-DC switching regulator manufactured by Texas Instruments (NS).  

### **Specifications:**  
- **Input Voltage Range:** 0.8V to 14V  
- **Output Voltage Range:** Adjustable from 1.24V to 14V  
- **Output Current:** Up to 1.5A (switch current limit)  
- **Switching Frequency:** 300kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 10-pin VSSOP (MSOP)  

### **Descriptions:**  
The LM2623MMX is a low-power, boost converter designed for battery-powered applications. It features a low start-up voltage (0.8V) and can operate efficiently from single or dual-cell alkaline/NiMH batteries. The device includes an internal N-channel MOSFET switch and provides over-temperature and current-limit protection.  

### **Features:**  
- **Wide Input Voltage Range:** Supports operation from very low voltages (0.8V).  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Low Quiescent Current:** 17µA (typical) in shutdown mode.  
- **Internal Soft-Start:** Reduces inrush current.  
- **Synchronous Rectification:** Improves efficiency.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  

This regulator is commonly used in portable electronics, battery-powered systems, and energy-harvesting applications.  

(Note: "NS" refers to National Semiconductor, which was acquired by Texas Instruments.)

Application Scenarios & Design Considerations

General Purpose, Gated Oscillator Based, DC/DC Boost Converter

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