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TPS62044DGQR from TI,Texas Instruments

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TPS62044DGQR

Manufacturer: TI, TI/18

1.8-V Output, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10

Partnumber Manufacturer Quantity Availability
TPS62044DGQR TI, TI/18 3929 In Stock

Description and Introduction

1.8-V Output, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10 The TPS62044DGQR is a step-down (buck) DC-DC converter manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range:** 2.5 V to 6 V  
- **Output Voltage Range:** Adjustable from 0.6 V to VIN  
- **Output Current:** Up to 2 A  
- **Switching Frequency:** 2.25 MHz (typical)  
- **Efficiency:** Up to 95%  
- **Quiescent Current:** 17 µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin VSSOP (DGQ)  

### **Descriptions:**  
- The TPS62044DGQR is a synchronous step-down converter optimized for high efficiency and compact designs.  
- It integrates low-RDS(on) MOSFETs to minimize power loss.  
- Operates in PWM mode under heavy loads and automatically switches to Power Save Mode (PSM) under light loads for improved efficiency.  
- Features a fixed-frequency operation for predictable noise performance.  

### **Features:**  
- **High Efficiency:** Up to 95% efficiency with integrated MOSFETs.  
- **Low Quiescent Current:** 17 µA (typical) for power-sensitive applications.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **100% Duty Cycle Mode:** Supports lowest dropout operation.  
- **Power Save Mode (PSM):** Enhances efficiency at light loads.  
- **Overcurrent and Thermal Protection:** Built-in safeguards for reliability.  
- **Small Footprint:** 10-pin VSSOP package for space-constrained designs.  

This information is based solely on TI's official datasheet and product documentation.

Application Scenarios & Design Considerations

1.8-V Output, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10

Alternative Part Number

  • LTC3406ES5#TRPBF --: 1.5A synchronous step-down converter in a small package with similar input range and adjustable output, a strong drop-in style alternative to the TPS62044.
  • AP3211KTR-G1 --: 1.5A synchronous buck converter with comparable voltage range and switching frequency, widely available and cost-effective substitute.
  • MP2145GD-Z --: High-efficiency 1.5A synchronous step-down converter with similar pin function and electrical ratings, suitable as a functional replacement.
  • TPS62040DGQ --: Same TPS6204x family buck converter in the same MSOP-10 PowerPAD package with identical pinout; only the output voltage setting differs, so it is a drop-in option when the output rail can be adjusted.
  • TPS62110DR --: Similar 1A step-down converter from TI with comparable input range and switching frequency, suitable as a functional substitute with minor layout changes.
  • LTC3406ES5 --: 1.5A synchronous buck converter in a small package offering similar efficiency and input voltage range; a viable cross-vendor alternative requiring footprint adaptation.

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