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TPS51124RGETG4 from TI,Texas Instruments

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TPS51124RGETG4

Manufacturer: TI, TEXAS

Dual, Synchronous Step Down Controller for Low Voltage System Power 24-VQFN -40 to 85

Partnumber Manufacturer Quantity Availability
TPS51124RGETG4 TI, TEXAS 1462 In Stock

Description and Introduction

Dual, Synchronous Step Down Controller for Low Voltage System Power 24-VQFN -40 to 85 The TPS51124RGETG4 is a power management IC (PMIC) 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 (via external resistors)  
- **Switching Frequency:** 300kHz to 2.2MHz (adjustable)  
- **Number of Outputs:** 2 (Buck Controller + LDO)  
- **Buck Controller Output Current:** Up to 10A (with external FETs)  
- **LDO Output Current:** Up to 3A  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 24-VQFN (4mm x 4mm)  

### **Descriptions:**  
- The TPS51124RGETG4 is a synchronous buck controller with an integrated low-dropout (LDO) regulator.  
- Designed for high-efficiency power conversion in applications such as notebooks, desktops, and embedded systems.  
- Supports voltage tracking and sequencing for multi-rail power systems.  

### **Features:**  
- **Dual Outputs:** Combines a synchronous buck controller and an LDO in a single IC.  
- **Adjustable Frequency:** Allows optimization for efficiency or component size.  
- **Power Good Indicator:** Monitors output status.  
- **Soft-Start Control:** Prevents inrush current.  
- **Protection Features:** Overcurrent, overvoltage, and thermal shutdown.  
- **Low Quiescent Current:** Enhances efficiency in standby mode.  

This IC is commonly used in power supply designs requiring flexible voltage regulation and high current capability.

Application Scenarios & Design Considerations

Dual, Synchronous Step Down Controller for Low Voltage System Power 24-VQFN -40 to 85

Alternative Part Number

  • ISL6262CRZ --: Dual-phase synchronous buck controller for notebook CPU/GPU rails, similar function and voltage range to the TPS51124, different series and vendor.
  • MAX8770GTL+ --: Multi-phase step-down controller for CPU core supplies with comparable current-sense and PWM architecture, suitable as a functional substitute.
  • NCP5212AMNR2G --: Single/dual-phase synchronous buck controller with integrated drivers, similar input range and switching frequency, offered in a different package family.
  • LM26420XSQ/NOPB --: Dual synchronous buck controller with similar input range and current capability, pin-compatible in many designs and from the same vendor.
  • ISL6227CAZ --: Dual-channel synchronous buck PWM controller with comparable voltage and current ratings, suitable as a functional drop-in replacement.
  • MAX8526EUB+ --: Dual-output step-down controller offering similar switching frequency and current handling, usable as an alternative with minor layout adjustments.

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