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TPS62040DGQRG4 from TI,Texas Instruments

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TPS62040DGQRG4

Manufacturer: TI

Adjustable, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10
Partnumber Manufacturer Quantity Availability
TPS62040DGQRG4 TI 33 In Stock

Description and Introduction

Adjustable, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10 The TPS62040DGQRG4 is a step-down converter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Input Voltage Range:** 2.9V to 6V  
- **Output Voltage Range:** Adjustable from 0.8V to 5V  
- **Output Current:** Up to 2A  
- **Switching Frequency:** 3MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin VSSOP (DGQ)  
- **Control Method:** PWM/PFM auto-switching for high efficiency  

### **Descriptions:**  
The TPS62040DGQRG4 is a high-efficiency synchronous step-down DC-DC converter optimized for portable applications. It integrates low RDS(on) MOSFETs and operates at a high switching frequency, allowing the use of small external components.  

### **Features:**  
- **High Efficiency:** Up to 95% with Power Save Mode  
- **Adjustable Output Voltage:** Via external resistors  
- **Low Quiescent Current:** 17µA (typical)  
- **100% Duty Cycle Mode:** For lowest dropout  
- **Soft Start:** Prevents inrush current  
- **Over-Temperature Protection:** Thermal shutdown  
- **Synchronous Rectification:** Improves efficiency  

This device is suitable for battery-powered applications, portable devices, and point-of-load regulation.

Application Scenarios & Design Considerations

Adjustable, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10

Alternative Part Number

  • TPS62040DGQR --: Same TPS62040 buck converter in the same MSOP-10 PowerPAD package, identical electrical specifications; the RG4 suffix is only a packing/lead-free designation, so this is a drop-in replacement.
  • TPS62042DGQR --: Pin-compatible member of the same TPS6204x family with a slightly different fixed output voltage option; same package and pinout, suitable when the output voltage tolerance allows.
  • TPS62142RGTR --: Similar 2A step-down converter from the newer TPS6214x series with comparable input range and pin function; requires layout review due to different package (QFN) but is a strong functional alternative.

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