TPS78319DDCT - Texas Instruments

Manufacturer Part Number

TPS78319DDCT

Manufacturer

Texas Instruments

Introduction

The TPS78319DDCT is a low-dropout linear regulator designed for power-sensitive applications, offering high PSRR, ultra-low quiescent current, and robust protection features.

Product Features and Performance

Positive output configuration with a fixed output voltage of 1.9V

Supports up to 150mA of output current

Ultra-low quiescent current of 800 nA ideal for battery-powered applications

High PSRR of 40dB to 15dB between 10Hz and 1kHz ensuring stable voltage under varying load conditions

Enable control feature for power management flexibility

Over Current and Over Temperature protection for safety and reliability

Reverse Polarity Protection to prevent damage from incorrect power connections

Product Advantages

High Energy Efficiency due to ultra-low quiescent current

Stable Output Voltage thanks to high PSRR values

Enhanced Safety with multiple protection features

Minimal Power Loss with its low dropout feature

Key Technical Parameters

Voltage Input (Max): 5.5V

Voltage Output (Min/Fixed): 1.9V

Current Output: 150mA

Current Quiescent (Iq): 800 nA

Current Supply (Max): 8 µA

PSRR: 40dB ~ 15dB (10Hz ~ 1kHz)

Operating Temperature: -40°C ~ 105°C

Quality and Safety Features

Over Current and Over Temperature protection enhances device longevity and reliability

Reverse Polarity Protection prevents possible damages due to incorrect installation

Compatibility

Designed for surface mount technology with SOT-23-5 Thin, TSOT-23-5 package

Compatible with a wide range of microcontrollers and digital ICs requiring 1.9V power supply

Application Areas

IoT devices

Portable and battery-powered electronics

Wearable technology

Medical devices

Energy-sensitive applications

Product Lifecycle

Currently marked as Active

Not indicated as nearing discontinuation, ensuring availability for future designs and projects

Several Key Reasons to Choose This Product

Ultra-low quiescent current is ideal for extending battery life in portable applications

High PSRR ensures stable output voltage for sensitive loads

Broad operating temperature range suitable for harsh environments

Compact and flexible for design in SOT-23-5 Thin package

Comprehensive protection features safeguard the application and the LDO regulator itself

Texas Instruments' reputation for quality and support adds reliability