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LM2734XMK/NOPB from NS Pb-free,National Semiconductor

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LM2734XMK/NOPB

Manufacturer: NS Pb-free

Thin SOT23 1A Load Step-Down DC-DC Regulator 6-SOT -40 to 125

Partnumber Manufacturer Quantity Availability
LM2734XMK/NOPB,LM2734XMKNOPB NS Pb-free 20 In Stock

Description and Introduction

Thin SOT23 1A Load Step-Down DC-DC Regulator 6-SOT -40 to 125 The LM2734XMK/NOPB is a switching regulator manufactured by Texas Instruments (NS). Below are the factual details from Ic-phoenix technical data files:  

### **Manufacturer:**  
- **NS (National Semiconductor, now part of Texas Instruments)**  

### **Pb-free Specifications:**  
- **RoHS Compliant:** Yes  
- **Lead-Free:** Yes  
- **Halogen-Free:** No specific data provided  

### **Descriptions:**  
- The LM2734XMK/NOPB is a **step-up (boost) DC-DC switching regulator**.  
- It operates at a **fixed switching frequency of 1.6 MHz or 3.3 MHz** (depending on the variant).  
- Input voltage range: **2.7V to 14V**  
- Output voltage: **Adjustable up to 24V**  
- Output current capability: **Up to 2.1A (switch current limit)**  
- Package: **6-Pin SOT-23 (XMK)**  

### **Features:**  
- **High switching frequency** allows for small external components.  
- **Internal N-channel MOSFET switch** for high efficiency.  
- **Low shutdown current (<1 µA)** for power-saving applications.  
- **Thermal shutdown and current limit protection** for reliability.  
- **Adjustable soft-start** to control inrush current.  
- **Synchronous rectification not included** (external diode required).  

This information is strictly based on the available specifications for the LM2734XMK/NOPB.

Application Scenarios & Design Considerations

Thin SOT23 1A Load Step-Down DC-DC Regulator 6-SOT -40 to 125

Alternative Part Number

  • TPS54331DR --: 3A 28V step-down converter in SOIC-8 with similar input range and current rating; widely available and pin-compatible in function, easy drop-in for many LM2734 designs.
  • MP1584EN --: 3A 28V synchronous step-down regulator in SOIC-8, high efficiency and low cost, suitable replacement for 1.5A-class buck converters with minor layout adjustment.
  • AP3211KTR-G1 --: 1.5A 18V asynchronous buck converter in SOT-23-6, close current and voltage class to LM2734, good alternative when board space is limited.

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