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TPS54312PWP from TI,Texas Instruments

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TPS54312PWP

Manufacturer: TI, TI/BB

Q1
Partnumber Manufacturer Quantity Availability
TPS54312PWP TI, TI/BB 793 In Stock

Description and Introduction

Q1 The TPS54312PWP is a DC/DC converter manufactured by Texas Instruments (TI). Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** 0.8V to 25V  
- **Output Current:** Up to 3A (continuous)  
- **Switching Frequency:** 570 kHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** HTSSOP-14 (PWP)  

### **Descriptions:**  
The TPS54312PWP is a step-down (buck) DC/DC converter with an integrated 80-mΩ high-side MOSFET. It is designed for high-efficiency power conversion in applications such as industrial, automotive, and consumer electronics. The device includes features like adjustable soft-start, cycle-by-cycle current limiting, and thermal shutdown protection.  

### **Features:**  
- **Integrated MOSFET:** Reduces external component count.  
- **Adjustable Output Voltage:** Via external resistors.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Cycle-by-Cycle Current Limiting:** Enhances reliability.  
- **Adjustable Soft-Start:** Reduces inrush current.  
- **Wide Input Voltage Range:** Supports various power sources.  

This information is sourced from TI's official datasheet for the TPS54312PWP.

Application Scenarios & Design Considerations

Q1

Alternative Part Number

  • LM2676S-ADJ --: Simple switcher buck regulator in a TO-263 package with comparable current capability; different series naming makes it easy to distinguish, and it is widely available as a drop-in style alternative for 3A step-down designs.
  • L5973D --: 2.5A step-down switching regulator with integrated switch, similar input voltage range and adjustable output; different manufacturer and series provide a clear cross-reference option.
  • MP1584EN --: 3A, 28V step-down converter in a small package with adjustable output; a cost-effective alternative from a different vendor and series for similar buck regulator applications.
  • LT1933ES6 --: Compact 1.2A step-down converter with wide input voltage range and adjustable output; different manufacturer and series, suitable when lower output current is acceptable and board space is tight.
  • AP3211KTR-G1 --: Low-cost 1.5A synchronous buck converter in a small package with wide input range; a practical second-source option when cost and availability matter more than exact pin compatibility.

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