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TPS51125RGET from BB/TI

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TPS51125RGET

Manufacturer: BB/TI, TI

Dual-Synchronous, Step-Down Controller with Out-of-AudioT Operation and 100-mA LDOs 24-VQFN -40 to 85

Partnumber Manufacturer Quantity Availability
TPS51125RGET BB/TI, TI 38311 In Stock

Description and Introduction

Dual-Synchronous, Step-Down Controller with Out-of-AudioT Operation and 100-mA LDOs 24-VQFN -40 to 85 The TPS51125RGET is a synchronous buck controller manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable down to 0.76V  
- **Switching Frequency:** 300kHz to 1.2MHz (adjustable)  
- **Output Current:** Up to 25A (with external FETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 85°C  
- **Package:** 24-pin VQFN (RGET)  

### **Descriptions:**  
The TPS51125RGET is a high-efficiency synchronous buck controller designed for point-of-load (POL) applications. It supports a wide input voltage range and provides precise output voltage regulation. The device integrates gate drivers for external N-channel MOSFETs and includes features like adjustable soft-start, power-good indication, and overcurrent protection.  

### **Features:**  
- **Adjustable Output Voltage:** Via external resistor divider  
- **Programmable Switching Frequency:** 300kHz to 1.2MHz  
- **Integrated Gate Drivers:** Supports high-side and low-side N-MOSFETs  
- **Power-Good (PG) Indicator:** Monitors output voltage status  
- **Soft-Start Control:** Adjustable via external capacitor  
- **Protection Features:** Overcurrent, undervoltage lockout (UVLO), and thermal shutdown  
- **Light-Load Efficiency:** Supports pulse-skipping mode  

This information is strictly factual from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Dual-Synchronous, Step-Down Controller with Out-of-AudioT Operation and 100-mA LDOs 24-VQFN -40 to 85

Alternative Part Number

  • ISL95870BIRZ --: Dual-channel synchronous buck controller for notebook power rails, similar function and pin-compatible class to the TPS51125.
  • RT8205LZQW --: Dual synchronous buck controller with 5V/3.3V outputs, commonly used as a drop-in alternative in notebook power designs.
  • MAX17020ETJ+ --: Dual-output step-down controller with similar voltage regulation features, suitable for the same notebook power supply applications.
  • RT8205CGQW --: Dual synchronous buck controller designed for notebook DDR and system power, offering similar dual-output architecture and pin-compatible footprint in QFN.

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