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LM2736YMKX from NS,National Semiconductor

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LM2736YMKX

Manufacturer: NS, NSNS

Thin SOT23 750mA Load Step-Down DC-DC Regulator
Partnumber Manufacturer Quantity Availability
LM2736YMKX NS, NSNS 19588 In Stock

Description and Introduction

Thin SOT23 750mA Load Step-Down DC-DC Regulator The LM2736YMKX is a switching regulator manufactured by Texas Instruments (NS).  

**Specifications:**  
- **Input Voltage Range:** 3V to 20V  
- **Output Voltage Range:** Adjustable from 1.22V to 20V  
- **Output Current:** Up to 750mA  
- **Switching Frequency:** 550kHz or 1.6MHz (depending on version)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23 (6-pin)  

**Descriptions:**  
The LM2736YMKX is a step-up (boost) DC-DC converter designed for small, efficient power supply solutions. It integrates a high-side N-channel MOSFET and provides a compact, high-performance solution for battery-powered and low-power applications.  

**Features:**  
- Integrated 750mA, 0.5Ω N-channel MOSFET  
- Adjustable output voltage  
- Fixed-frequency PWM operation  
- Thermal shutdown protection  
- Under-voltage lockout (UVLO)  
- Low shutdown current (<1µA)  
- Available in two switching frequency options (550kHz or 1.6MHz)  

This device is commonly used in portable electronics, LED drivers, and industrial applications.

Application Scenarios & Design Considerations

Thin SOT23 750mA Load Step-Down DC-DC Regulator

Alternative Part Number

  • TPS54202DDCR --: Pin-compatible step-down converter in SOT-23-6 with similar input voltage range and current capability; TI is the successor to National Semiconductor, so it is the closest functional replacement.
  • MP2315GJ-Z --: Compact synchronous buck converter in TSOT-23-6 offering comparable 3A output and wide input range, suitable as a drop-in alternative with minor layout adjustment.
  • AP3211KTR-G1 --: Low-cost 1.5A step-down regulator in SOT-23-6 with similar switching frequency and voltage ratings, usable for less demanding load conditions.
  • TPS54231DR --: Pin-compatible step-down converter with similar input voltage range and current rating, widely available and well documented.
  • MP1584EN --: Compact buck regulator with comparable switching frequency and output current, suitable drop-in for many LM2736 designs.

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