Please refer to the English Version as our Official Version.

Europe: France~~(Français)~~ Germany~~(Deutsch)~~ Italy~~(Italia)~~ Russian~~(русский)~~ Poland~~(polski)~~ Czech~~(Čeština)~~ Luxembourg~~(Lëtzebuergesch)~~ Netherlands~~(Nederland)~~ Iceland~~(íslenska)~~ Hungarian~~(Magyarország)~~ Spain~~(español)~~ Portugal~~(Português)~~ Turkey~~(Türk dili)~~ Bulgaria~~(Български език)~~ Ukraine~~(Україна)~~ Greece~~(Ελλάδα)~~ Israel~~(עִבְרִית)~~ Sweden~~(Svenska)~~ Finland~~(Svenska)~~ Finland~~(Suomi)~~ Romania~~(românesc)~~ Moldova~~(românesc)~~ Slovakia~~(Slovenská)~~ Denmark~~(Dansk)~~ Slovenia~~(Slovenija)~~ Slovenia~~(Hrvatska)~~ Croatia~~(Hrvatska)~~ Serbia~~(Hrvatska)~~ Montenegro~~(Hrvatska)~~ Bosnia and Herzegovina~~(Hrvatska)~~ Lithuania~~(lietuvių)~~ Spain~~(Português)~~ Switzerland~~(Deutsch)~~ United Kingdom~~(English)~~

Asia/Pacific: Japan~~(日本語)~~ Korea~~(한국의)~~ Thailand~~(ภาษาไทย)~~ Malaysia~~(Melayu)~~ Singapore~~(Melayu)~~ Vietnam~~(Tiếng Việt)~~ Philippines~~(Pilipino)~~

Africa, India and Middle East: United Arab Emirates~~(العربية)~~ Iran~~(فارسی)~~ Tajikistan~~(فارسی)~~ India~~(हिंदी)~~ Madagascar~~(malaɡasʲ)~~

South America / Oceania: New Zealand~~(Maori)~~ Brazil~~(Português)~~ Angola~~(Português)~~ Mozambique~~(Português)~~

North America: United States~~(English)~~ Canada~~(English)~~ Haiti~~(Ayiti)~~ Mexico~~(español)~~

Home Products Integrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching Regulators~~TPS54340QDDARQ1~~

Image may be representation.
See specifications for product details.

~~Favorite~~

EXPRESS OPTION

Payment method

TPS54340QDDARQ1 - Texas Instruments

Name: Texas Instruments TPS54340QDDARQ1
Brand: Texas Instruments
SKU: TPS54340QDDARQ1
Price: 20.86 USD
Availability: InStock
Rating: 5 (1 reviews)

Manufacturer Part Number: TPS54340QDDARQ1

Manufacturer: Texas Instruments

Allelco Part Number: 32D-TPS54340QDDARQ1

Warranty: 1 Year Allelco Warranty - Find out more

Parts Description: IC REG BCK SPLIT RAIL ADJ 8SOPWR

Package: 8-SO PowerPad

Data sheet: 1.TPS54340QDDARQ1.pdf ...

HTML Datasheet
TPS54340-Q1.pdf

RoHs Status: ROHS3 Compliant

~~Compare~~

Our certification

In stock: 11293

Unit Price: $21.84
Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity	Unit Price	Ext. Price
1+	$21.84	$21.84
30+	$20.86	$625.80

The above prices does not include taxes and freight rates, which will be calculated on the order pages.

EXPRESS OPTION

Payment method

Our certification

Specifications

TPS54340QDDARQ1 Tech Specifications
Texas Instruments - TPS54340QDDARQ1 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TPS54340QDDARQ1

Product Attribute	Attribute Value
Manufacturer	Texas Instruments
Voltage - Output (Min/Fixed)	0.8V
Voltage - Output (Max)	41V
Voltage - Input (Min)	4.5V
Voltage - Input (Max)	42V
Topology	Buck, Split Rail
Synchronous Rectifier	No
Supplier Device Package	8-SO PowerPad
Series	Automotive, AEC-Q100, Eco-Mode™
Package / Case	8-PowerSOIC (0.154', 3.90mm Width)

Product Attribute	Attribute Value
Package	Tape & Reel (TR)
Output Type	Adjustable
Output Configuration	Positive
Operating Temperature	-40°C ~ 150°C (TJ)
Number of Outputs	1
Mounting Type	Surface Mount
Function	Step-Down
Frequency - Switching	100kHz ~ 2.5MHz
Current - Output	3.5A
Base Product Number	TPS54340

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

TPS54340QDDARQ1

Manufacturer

Texas Instruments

Introduction

TPS54340QDDARQ1 is a DC-DC step-down switching regulator designed for automotive and power management applications.

Product Features and Performance

Efficient power conversion with Eco-Mode™

Adjustable output voltage

Buck topology

Split Rail capability

Single output channel

Supports input voltage range from 4.5V to 42V

Adjustable switching frequency from 100kHz to 2.5MHz

Operates at a temperature range of -40°C to 150°C

Qualifies for AEC-Q100 automotive standards

Thermal shutdown and overcurrent protection

Product Advantages

High efficiency at light loads with Eco-Mode™

Wide input voltage range suitable for various applications

High temperature operating capability

Automotive-grade reliability

Key Technical Parameters

Input Voltage (Min): 4.5V

Input Voltage (Max): 42V

Output Voltage (Min/Fixed): 0.8V

Output Voltage (Max): 41V

Current - Output: 3.5A

Switching Frequency: 100kHz ~ 2.5MHz

Operating Temperature: -40°C ~ 150°C

Synchronous Rectifier: No

Quality and Safety Features

Overcurrent protection

Thermal shutdown

AEC-Q100 automotive qualification

Compatibility

Compatible with a variety of applications requiring a buck regulator

Surface Mount 8-PowerSOIC package for PCB integration

Application Areas

Automotive electronics

Power management systems

Industrial controls

Telecommunication equipment

Product Lifecycle

Not For New Designs

Potential for future discontinuation

Check for available replacements or upgrades

Several Key Reasons to Choose This Product

Broad input voltage range suited for fluctuating inputs

Eco-Mode™ for high efficiency at light loads

Capable of withstanding harsh automotive environments

AEC-Q100 qualification attests to quality and reliability

Flexible design with adjustable output voltage and frequency settings

Supports high-temperature operation up to 150°C

Protection features ensure longevity and safety of the product in applications

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TPS54340QDDARQ1

Product Attribute
Part Number	TPS54340BQDDARQ1	TPS54340QDDAQ1	TPS54340BQDDAQ1	TPS54340BDDAR
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Output Configuration	-	-	-	-
Topology	-	-	-	-
Function	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Current - Output	-	-	-	-
Number of Outputs	-	-	-	-
Voltage - Input (Max)	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Voltage - Output (Max)	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Synchronous Rectifier	-	-	-	-
Frequency - Switching	-	-	-	-
Output Type	-	Current - Unbuffered	Voltage - Buffered	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Voltage - Output (Min/Fixed)	-	-	-	-
Series	-	-	-	-
Voltage - Input (Min)	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42

TPS54340QDDARQ1 Datasheet PDF

Download TPS54340QDDARQ1 pdf datasheets and Texas Instruments documentation for TPS54340QDDARQ1 - Texas Instruments.

HTML Datasheet: TPS54340-Q1.pdf

Customers Also Interested in

Recommended Products

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.

Write a Review

Your Email address will not be published.

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

Use your express account for shipment if you have one.
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

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
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
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	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 -

Efficient Supply Management
Cost-Saving Procurement
Fast Sourcing & Delivery

Contact us if you have any questions.

Phone
+00852 9146 4856
Email
info@allelco.com

Certifications & Memberships