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LM2696MXA from NS,National Semiconductor

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LM2696MXA

Manufacturer: NS, NSC

3A, Constant On Time Buck Regulator

Partnumber Manufacturer Quantity Availability
LM2696MXA NS, NSC 3631 In Stock

Description and Introduction

3A, Constant On Time Buck Regulator The LM2696MXA is a switching regulator manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** Adjustable from 1.25V to 5.5V  
- **Output Current:** Up to 2A  
- **Switching Frequency:** 550kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-pin SOIC (LM2696MXA)  

### **Descriptions:**  
The LM2696MXA is a step-down (buck) switching regulator designed for high-efficiency power conversion. It integrates a high-side N-channel MOSFET and provides a fixed-frequency PWM control scheme. The regulator is suitable for a wide range of applications, including industrial, automotive, and consumer electronics.  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 36V)**  
- **Adjustable Output Voltage (1.25V to 5.5V)**  
- **Integrated 2A N-Channel MOSFET Switch**  
- **Fixed 550kHz Switching Frequency**  
- **Thermal Shutdown Protection**  
- **Under-Voltage Lockout (UVLO)**  
- **Soft-Start Function**  
- **Low Shutdown Current (<1µA)**  
- **Available in SOIC-8 Package**  

This information is strictly based on the manufacturer's datasheet and knowledge base. No additional guidance or suggestions are provided.

Application Scenarios & Design Considerations

3A, Constant On Time Buck Regulator

Alternative Part Number

  • TPS5430DDA --: 3A step-down converter in SOIC-8 PowerPAD, similar input voltage range and function; TI is the successor to National Semiconductor, so it is a strong drop-in-class replacement.
  • LM2596S-ADJ --: Widely available adjustable buck regulator with comparable current capability and simple external component requirements; good second choice for cost-sensitive designs.
  • MP1584EN --: Compact 3A step-down converter with wide input range and high switching frequency, suitable as a modern alternative when board space is limited.
  • L5973D --: 2.5A step-down switching regulator with comparable voltage range, suitable drop-in functional replacement.

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