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TPS40042DRCR from TI,Texas Instruments

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TPS40042DRCR

Manufacturer: TI, TEXAS&BB

Low Pin Count, Low Vin, Synchronous Buck DCDC Controller with Tracking 10-VSON -40 to 85

Partnumber Manufacturer Quantity Availability
TPS40042DRCR TI, TEXAS&BB 216 In Stock

Description and Introduction

Low Pin Count, Low Vin, Synchronous Buck DCDC Controller with Tracking 10-VSON -40 to 85 The TPS40042DRCR is a synchronous buck controller manufactured by Texas Instruments (TI). Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** 0.7V to 5.5V  
- **Switching Frequency:** Adjustable from 100kHz to 600kHz  
- **Maximum Duty Cycle:** 100%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** VQFN-10 (3mm x 3mm)  

### **Descriptions:**
- The TPS40042DRCR is a high-performance synchronous buck controller designed for step-down DC-DC conversion.  
- It supports a wide input voltage range, making it suitable for various applications, including telecom, industrial, and computing systems.  
- The device integrates features for efficiency, reliability, and ease of design.  

### **Features:**
- **Adjustable Output Voltage:** Set via external resistors.  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Soft-Start:** Prevents inrush current during startup.  
- **Overcurrent Protection (OCP):** Enhances system safety.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Adjustable Switching Frequency:** Allows optimization for efficiency or size.  
- **Low Quiescent Current:** Improves light-load efficiency.  

The TPS40042DRCR is RoHS-compliant and lead-free.  

(Source: Texas Instruments Datasheet)

Application Scenarios & Design Considerations

Low Pin Count, Low Vin, Synchronous Buck DCDC Controller with Tracking 10-VSON -40 to 85

Alternative Part Number

  • LM27402SQ/NOPB --: Synchronous buck controller with similar wide input voltage range and current-mode control, suitable drop-in for many TPS40042 applications.
  • ISL8117AFRZ --: Wide-input synchronous buck controller offering comparable switching frequency and gate drive capability as an alternative to the TPS40042.
  • LTC3851AEGN#PBF --: Synchronous step-down controller with similar control architecture and voltage range, usable as a functional substitute with layout review.
  • LTC3855EUHF --: Multiphase synchronous step-down controller with similar control architecture and flexible compensation.

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