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TPS72518DCQRG4 from TI,Texas Instruments

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TPS72518DCQRG4

Manufacturer: TI, TEXASINSTRUM

Low Input Voltage, 1-A Low-Dropout Linear Regulators with Supervisor 6-SOT-223 -40 to 125
Partnumber Manufacturer Quantity Availability
TPS72518DCQRG4 TI, TEXASINSTRUM 5000 In Stock

Description and Introduction

Low Input Voltage, 1-A Low-Dropout Linear Regulators with Supervisor 6-SOT-223 -40 to 125 The TPS72518DCQRG4 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Output Voltage:** 1.8V (fixed)  
- **Output Current:** 500mA  
- **Dropout Voltage:** 300mV (typical) at 500mA  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Accuracy:** ±2% (over line, load, and temperature)  
- **Quiescent Current:** 17µA (typical)  
- **Package:** SOT-223-5 (DCQ)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Protection Features:** Thermal shutdown, current limit, reverse current protection  

### **Descriptions and Features:**  
- **Low Dropout:** Ensures stable operation even when input voltage is close to the output voltage.  
- **Low Quiescent Current:** Optimized for battery-powered applications.  
- **Stable with Ceramic Capacitors:** Requires only a 1µF (or larger) output capacitor for stability.  
- **High PSRR:** Good noise rejection for sensitive applications.  
- **Thermal Shutdown and Current Limit:** Protects the device from overheating and overcurrent conditions.  
- **Reverse Current Protection:** Prevents damage from reverse current flow.  

This regulator is suitable for portable electronics, industrial, and automotive applications requiring a stable 1.8V supply.

Application Scenarios & Design Considerations

Low Input Voltage, 1-A Low-Dropout Linear Regulators with Supervisor 6-SOT-223 -40 to 125

Alternative Part Number

  • LP38692SD-1.8 --: 1.8V low-dropout linear regulator in a similar power range, different series and package, suitable as a functional replacement with good availability.
  • MIC39101-1.8YM --: 1.8V LDO regulator from a different manufacturer and series, offering comparable current capability and dropout performance for the same rail.
  • LT1963AEQ-1.8 --: 1.8V low-noise LDO with similar output voltage and current class, different naming and vendor, usable when higher performance is acceptable.
  • TPS7A4901DGNR --: Low-noise 36V LDO in the same family of TI regulators, offering similar 1.8V-class regulation with better PSRR and a different series prefix for easy distinction.
  • LP38693SD-1.8 --: 1.8V fixed-output LDO with comparable current capability and thermal performance, from a different TI product line, making it a straightforward drop-in style alternative.
  • MIC5219-1.8YM5 --: 1.8V fixed LDO with low dropout and similar package options from a different manufacturer, suitable when a cross-vendor second source is needed.

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