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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - LinearTPS78319DDCT
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TPS78319DDCT - Texas Instruments

Manufacturer Part Number
TPS78319DDCT
Manufacturer
Texas Instruments
Allelco Part Number
32D-TPS78319DDCT
Warranty
1 Year Allelco Warranty - Find out more
Parts Description
IC REG LINEAR 1.9V 150MA SOT23-5
Package
SOT-23-THIN
Data sheet
-
RoHs Status
ROHS3 Compliant
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In stock: 42020

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Specifications

TPS78319DDCT Tech Specifications
Texas Instruments - TPS78319DDCT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TPS78319DDCT

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage Dropout (Max) -  
Voltage - Output (Min/Fixed) 1.9V  
Voltage - Output (Max) -  
Voltage - Input (Max) 5.5V  
Supplier Device Package SOT-23-THIN  
Series -  
Protection Features Over Current, Over Temperature, Reverse Polarity  
Package / Case SOT-23-5 Thin, TSOT-23-5  
Package Tape & Reel (TR)  
PSRR 40dB ~ 15dB (10Hz ~ 1kHz)  
Product Attribute Attribute Value  
Output Type Fixed  
Output Configuration Positive  
Operating Temperature -40°C ~ 105°C  
Number of Regulators 1  
Mounting Type Surface Mount  
Current - Supply (Max) 8 µA  
Current - Quiescent (Iq) 800 nA  
Current - Output 150mA  
Control Features Enable  
Base Product Number TPS783  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2 (1 Year)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

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

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TPS78319DDCT

Product Attribute TPS78319DDCR TPS78318DDCT TPS78236DDCT TPS78233DDCT
Part Number TPS78319DDCR TPS78318DDCT TPS78236DDCT TPS78233DDCT
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Mounting Type - Surface Mount Through Hole Surface Mount
Output Configuration - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Series - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Current - Output - - - -
Voltage - Input (Max) - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Base Product Number - DAC34H84 MAX500 ADS62P42
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Voltage - Output (Max) - - - -
Protection Features - - - -
Voltage - Output (Min/Fixed) - - - -
Voltage Dropout (Max) - - - -
Number of Regulators - - - -
Current - Quiescent (Iq) - - - -
Control Features - - - -
Current - Supply (Max) - - - -
PSRR - - - -

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Customer Reviews

Evaluation: 10 Articles

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

  • Kevi***.
    Mar 17, 2026

    Fast switching and stable output. Very satisfied with this IC

  • Daou***hekebkeb
    Jun 16, 2024

    I had a great experience purchasing items from Allelcoelec, I recommend

  • Uri ***al
    Jun 19, 2024

    Good comunication,
    Transpnt regarding the process and price.

  • Yaqu***l Ali
    Jun 19, 2024

    Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.

  • Lea ***
    Jun 19, 2024

    Morrey was very helpful and right on top of things!
    He replied quickly to my RFQ. He was very courteous and professional.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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TPS78319DDCT Image

TPS78319DDCT

Texas Instruments
32D-TPS78319DDCT

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