The only official website & email suffix are and
WIN SOURCE does not have any other Company Name or Website.


Part No LM27964SQ-C/NOPB
Manufacturer Texas Instruments
Catalog PMIC - LED Drivers
Description LM27964 White LED Driver System with I2C Compatible Brightness Control

Shipping Information

Shipped from HK warehouse
Expected Shipping Date
Ship today if order in (HKT)
Supplier Lead-Time Call for availability
Estimate shipping fee
Enter your destination to get a shipping estimate
Estimate Shipping Fee
Pricing & Ordering $1.0098 Historical reference price : is the price that a customer announces that it is willing to pay for this component in the previous period, only for reference.
Unit Price
Ext. Price
* The above prices does not include taxes and freight rates, which will be calculated on the order pages.
Availability: 7,000 pieces
MOQ: 30 pcs
Order Increment : 1 pcs
*Need More Quantity? *Request a Bulk Quantity Quotation?
Estimate shipping
Enter your destination to get a shipping estimate


Products specifications

Categories Integrated Circuits (ICs)
Manufacturer Texas Instruments
Packaging Reel - TR
Type DC DC Regulator
Topology Switched Capacitor (Charge Pump)
Internal Switch(s) Yes
Number of Outputs 7
Voltage Supply MIN 2.7V
Voltage Supply MAX 5.5V
Voltage - Output 2 V ~ 4 V
Output Current per Channel 30mA, 80mA
Frequency 700kHz
Dimming I2C
Applications Backlight
Operating Temperature Range -30°C ~ 85°C (TA)
Mounting SMD
Package 24-WFQFN Exposed Pad
Manufacturer Package 24-WQFN (4x4)
Win Source Part Number 1198028-LM27964SQ-C/NOPB
Manufacturer Homepage
Popularity Medium
Fake Threat In the Open Market 64 pct.
Supply and Demand Status Limited
Family Name LM27964
Introduction Date June 01, 2005
Country of Origin Malaysia
Halogen Free Compliant
Estimated EOL Date 2028
Alternative Parts
MAX1575ETE+TG104;   MAX8647ETE;  MAX1575ETE+G104; 


Product Overview: LM27964SQ-C/NOPB

The LM27964SQ-C/NOPB is a highly integrated Charge-Pump LED driver and boost converter from Texas Instruments designed to provide a complete backlight and audio solution for mobile phones and other handheld devices. Its compact design and feature-rich specifications make it an excellent choice for designers looking to enhance display and audio performance with minimal power consumption.

Key Features

  • Charge-Pump LED Driver: The device includes a high-efficiency, 1x/1.5x/2x charge-pump LED driver that can power up to six LEDs in parallel, providing uniform backlighting for LCD displays.
  • Variable Output Voltage: The output voltage can be adjusted via an I2C-compatible interface, offering precise control over the LED current and thus the brightness of the display.
  • Audio Amplifier: An integrated Class AB audio amplifier delivers high-quality sound output, making it ideal for devices that require both visual and audio functionalities.
  • Flexible Power Management: The LM27964SQ-C/NOPB supports a wide input voltage range and includes automatic mode switching to optimize efficiency based on LED forward voltage requirements.
  • I2C Interface: The device features an I2C-compatible interface for easy programming and control of the LED driver and audio amplifier, providing a high level of customization for specific application needs.
  • Protection Features: Built-in safety features include over-voltage protection, short-circuit protection, and thermal shutdown, ensuring reliable operation under various conditions.


This versatile driver is well-suited for a range of portable applications, including:

  • Smartphones
  • Tablets
  • Portable media players
  • Handheld gaming devices

Quality and Reliability

The LM27964SQ-C/NOPB is manufactured by Texas Instruments, a leader in semiconductor solutions, ensuring high standards of quality and reliability. The device is available in a compact 24-lead LLP package, making it suitable for space-constrained applications. With its robust design and integrated features, the LM27964SQ-C/NOPB provides a comprehensive solution for enhancing the user interface of portable devices.

Contact Us

You May Also Be Interested in

Top Sellers

Win-Source Footer Image

Cookie Consent Preference Center

When you visit any of our websites, it may store or retrieve information on your browser, mostly in the form of cookies. This information might be about you, your preferences, or your device and is mostly used to make the site work as you expect it to. The information does not usually directly identify you, but it can give you a more personalized experience. Because we respect your right to privacy, you can choose not to allow some types of cookies. Click on the different category headings to find out more and manage your preferences. Please note, blocking some types of cookies may impact your experience of the site and the services we are able to offer.

Manage Consent Preferences

Always Active

These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.

These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.

These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly.

These cookies are used to make advertising messages more relevant to you and may be set through our site by us or by our advertising partners. They may be used to build a profile of your interests and show you relevant advertising on our site or on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device.