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TPS54140DGQR from TI,Texas Instruments

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TPS54140DGQR

Manufacturer: TI

3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode 10-MSOP-PowerPAD -40 to 150

Partnumber Manufacturer Quantity Availability
TPS54140DGQR TI 12534 In Stock

Description and Introduction

3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode 10-MSOP-PowerPAD -40 to 150 The TPS54140DGQR is a step-down (buck) DC-DC converter manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 42V  
- **Output Voltage Range:** Adjustable down to 0.8V  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 570 kHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Junction Temperature:** -40°C to +150°C  
- **Package:** 10-pin VSSOP (DGQ)  

### **Descriptions:**
- The TPS54140DGQR is a synchronous buck converter with integrated high-side and low-side MOSFETs.  
- It is designed for high-efficiency power conversion in industrial, automotive, and consumer applications.  
- Features include adjustable soft-start, cycle-by-cycle current limiting, and thermal shutdown protection.  

### **Features:**
- **Wide Input Voltage Range:** Supports 4.5V to 42V operation.  
- **Integrated MOSFETs:** Reduces external component count.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Fixed Frequency PWM Control:** Ensures stable operation.  
- **Protection Features:** Overcurrent, overtemperature, and undervoltage lockout (UVLO).  
- **Low Quiescent Current:** 120 µA (typical) in shutdown mode.  

This converter is suitable for applications such as point-of-load regulation, industrial power supplies, and automotive systems.

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