About us Contact Us Submit BOM
RFQs(0)
English
Close Menu
View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Netherlands(Nederland) Spain(español) Turkey(Türk dili) Israel(עִבְרִית) Denmark(Dansk) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Philippines(Pilipino)
Africa, India and Middle East
India(हिंदी)
North America
United States(English) Canada(English) Mexico(español)
HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsL4973D3.3
L4973D3.3 Image
L4973D3.3 Image - 1
Image may be representation.
See specifications for product details.
Share
 Favorite

L4973D3.3 - STMicroelectronics

Manufacturer Part Number
L4973D3.3
Manufacturer
STMicroelectronics
Allelco Part Number
32D-L4973D3.3
ECAD Model
Parts Description
IC REG BUCK ADJ/3.3V 3.5A 20SO
Detailed Description
Package
20-SOIC (0.295", 7.50mm Width)
Data sheet
L4973.pdf
RoHs Status
ROHS3 Compliant
Compare
In stock: 15410

Required fields are indicated by an asterisk (*)
Please send RFQ, we will respond immediately.

Quantity

Specifications

L4973D3.3 Tech Specifications
STMicroelectronics - L4973D3.3 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - L4973D3.3

Product Attribute Attribute Value  
Manufacturer STMicroelectronics  
Voltage - Output (Min/Fixed) 0.5V (3.3V)  
Voltage - Output (Max) 50V  
Voltage - Input (Min) 8V  
Voltage - Input (Max) 55V  
Topology Buck  
Synchronous Rectifier No  
Supplier Device Package 20-SO  
Series -  
Package / Case 20-SOIC (0.295", 7.50mm Width)  
Product Attribute Attribute Value  
Package Tube  
Output Type Adjustable (Fixed)  
Output Configuration Positive  
Operating Temperature -40°C ~ 150°C (TJ)  
Number of Outputs 1  
Mounting Type Surface Mount  
Function Step-Down  
Frequency - Switching 100kHz ~ 300kHz  
Current - Output 3.5A  
Base Product Number L4973  

Parts Introduction

Manufacturer Part Number

L4973D3.3

Manufacturer

STMicroelectronics

Introduction

This is a PMIC Voltage Regulator DC DC Switching Regulator integrated circuit.

Product Features and Performance

Adjustable output voltage from 0.5V to 50V

Output current up to 3.5A

Switching frequency range of 100kHz to 300kHz

Operates in buck topology

Synchronous rectifier not included

Product Advantages

Wide input voltage range of 8V to 55V

Wide operating temperature range of -40°C to 150°C

ROHS3 compliant

20-SOIC package

Key Technical Parameters

Output Voltage: 0.5V (Minimum) to 50V (Maximum)

Number of Outputs: 1

Output Configuration: Positive

Switching Frequency: 100kHz to 300kHz

Quality and Safety Features

RoHS3 compliant

Compatibility

Surface mount package

Application Areas

Suitable for a wide range of DC-DC conversion applications

Product Lifecycle

Active product

Replacements and upgrades may be available

Key Reasons to Choose This Product

Wide input voltage and output voltage range

High output current capability

Compact surface mount package

Wide operating temperature range

RoHS3 compliance for environmental safety

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics L4973D3.3

Product Attribute L4973D3.3 L4972AD013TR L4971D L4973V5.1
Part Number L4973D3.3 L4972AD013TR L4971D L4973V5.1
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Base Product Number L4973 L4972 L4971 L4973
Output Configuration Positive Positive Positive Positive
Voltage - Output (Max) 50V 40V 50V 50V
Frequency - Switching 100kHz ~ 300kHz 100kHz ~ 200kHz 100kHz ~ 300kHz 100kHz ~ 300kHz
Synchronous Rectifier No No No No
Package Tube Tape & Reel (TR) Tube Tube
Voltage - Input (Max) 55V 50V 55V 55V
Output Type Adjustable (Fixed) Adjustable Adjustable Adjustable (Fixed)
Voltage - Input (Min) 8V 15V 8V 8V
Current - Output 3.5A 2A 1.5A 3.5A
Operating Temperature -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount Through Hole
Number of Outputs 1 1 1 1
Function Step-Down Step-Down Step-Down Step-Down
Supplier Device Package 20-SO 20-SO 16-SO W 18-DIP
Voltage - Output (Min/Fixed) 0.5V (3.3V) 5.1V 3.3V 5.1V (5.1V)
Package / Case 20-SOIC (0.295", 7.50mm Width) 20-SOIC (0.295', 7.50mm Width) 16-SOIC (0.295", 7.50mm Width) 18-DIP (0.300', 7.62mm)
Topology Buck Buck Buck Buck
Series - - - -

L4973D3.3 Datasheet PDF

Download L4973D3.3 pdf datasheets and STMicroelectronics documentation for L4973D3.3 - STMicroelectronics.

PCN Packaging
Material Barrier Bag 17/Dec/2020.pdf
PCN Assembly/Origin
CRP/14/8529 12/Jun/2014.pdf
HTML Datasheet
L4973.pdf
PCN Obsolescence/ EOL
L4973Dx/L4973Vx obs 06/Oct/2022.pdf

Customers Also Interested in

Recommended Products

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

View More
L4973D3.3 Image

L4973D3.3

STMicroelectronics
32D-L4973D3.3

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

Allelco
About Us
History
Certifications
Recruitment
Policies
Terms & Conditions
Privacy Policy
Cookie Policy
Services
Order Tracking
Return & Replacement
Frequently Asked Questions
Contact Us
Order
Shipping & Delivering
Payment Methods
My Account
The BlogsHot PartsChange LanguageNewsSite map
Contact Us
Headquarters Address:
Room C 13/F Harvard Commercial Building
105-111 Thomson Road Wan Chai
HongKong
Service Tel: +852-91464856
Service Email: info@allelco.com
Follow us
Copyright © 2012-2023 AllelcoElec.com. All rights reserved.
0 RFQ
Shopping cart (0 Items)
It is empty.
Submit RFQ
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB