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L4988MDTR from ST,ST Microelectronics

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L4988MDTR

Manufacturer: ST

Low drop voltage regulator

Partnumber Manufacturer Quantity Availability
L4988MDTR ST 5000 In Stock

Description and Introduction

Low drop voltage regulator The L4988MDTR is a high-voltage half-bridge gate driver manufactured by STMicroelectronics.  

### **Key Specifications:**  
- **Manufacturer:** STMicroelectronics  
- **Output Current:** 1.4 A (source) / 1.8 A (sink)  
- **Operating Voltage Range:** 8 V to 20 V  
- **High-Side Voltage:** Up to 600 V  
- **Propagation Delay:** 120 ns (typical)  
- **Deadtime:** 300 ns (typical)  
- **Switching Frequency:** Up to 500 kHz  
- **Package:** SO-8 (Exposed Pad)  

### **Descriptions & Features:**  
- Designed for driving MOSFETs and IGBTs in half-bridge configurations.  
- Integrated bootstrap diode for high-side driving.  
- Under-voltage lockout (UVLO) for both high-side and low-side drivers.  
- Matched propagation delays for better synchronization.  
- High noise immunity due to Schmitt-trigger inputs.  
- Suitable for motor control, power supplies, and inverters.  

The L4988MDTR is optimized for high-efficiency and reliable switching applications.

Application Scenarios & Design Considerations

Low drop voltage regulator

Alternative Part Number

  • TPS7B6933QDBVRQ1 --: Automotive-grade low-dropout linear regulator with similar 3.3V fixed output and current capability, suitable replacement in many L4988MDTR applications.
  • NCV4275CDT33RKG --: Automotive LDO regulator with 3.3V output and comparable dropout/current ratings, commonly used as a cross for ST automotive regulators.
  • MIC29302WU --: Adjustable high-current LDO that can be configured for the same output voltage, offering a flexible alternative when exact fixed-output matching is not critical.

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