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TPS78618KTTT from TI,Texas Instruments

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TPS78618KTTT

Manufacturer: TI, TI/BB

Ultra-Low Noise, High PSRR, Fast RF, High-Enable, 1.5A Low Dropout Regulator

Partnumber Manufacturer Quantity Availability
TPS78618KTTT TI, TI/BB 60 In Stock

Description and Introduction

Ultra-Low Noise, High PSRR, Fast RF, High-Enable, 1.5A Low Dropout Regulator The TPS78618KTTT is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (TI) and Burr-Brown (BB). Here are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 1.8V (fixed)  
- **Output Current:** 1.5A (max)  
- **Dropout Voltage:** 340mV (typical at 1.5A)  
- **Input Voltage Range:** 2.7V to 6.5V  
- **Line Regulation:** 0.02% (typical)  
- **Load Regulation:** 0.04% (typical)  
- **Quiescent Current:** 1.1mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 20-pin TO-PMOD (KTTT)  

### **Descriptions:**
- The TPS78618KTTT is a high-performance, low-noise LDO regulator designed for applications requiring stable and precise voltage regulation.  
- It features fast transient response, making it suitable for powering sensitive analog and digital circuits.  
- The device includes thermal shutdown and current-limit protection for enhanced reliability.  

### **Features:**
- **Low Dropout Voltage:** Ensures efficient operation even with small input-output differentials.  
- **High PSRR:** 75dB at 1kHz (typical), reducing noise in sensitive applications.  
- **Fast Transient Response:** Maintains stable output under dynamic load conditions.  
- **Thermal Shutdown & Current Limit:** Protects the device from overheating and overcurrent conditions.  
- **Stable with Low-ESR Ceramic Capacitors:** Simplifies PCB design and reduces cost.  
- **Enable Pin:** Allows for power management control.  

This regulator is commonly used in industrial, automotive, and communication systems requiring high-performance power regulation.

Application Scenarios & Design Considerations

Ultra-Low Noise, High PSRR, Fast RF, High-Enable, 1.5A Low Dropout Regulator

Alternative Part Number

  • LP38693SD-1.8 --: 1.8V low-dropout linear regulator in a similar power package with comparable current capability, suitable drop-in for many TPS78618 applications.
  • LT1963AEQ-1.8 --: Low-noise 1.8V LDO regulator with similar output current and dropout performance, a common cross-brand substitute.
  • MIC39101-1.8YM --: 1.8V LDO regulator offering comparable current and thermal performance, usable as an alternative with minor layout adjustment.
  • LT1963AEST-1.8 --: 1.8V low-noise LDO with comparable current rating and thermal performance, usable as an alternative when TI parts are unavailable.

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