L9945TR The STMicroelectronics L9945TR is a Smart Power IC designed for power management applications. It features a wide input voltage range and a surface mount package.
Mfr Part #:

L9945TR

Available from 3 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics L9945TR is a Smart Power IC designed for power management applications. It features a wide input voltage range and a surface mount package.
Total Stock: 6,601 pcs
$ Price Range: $0.75

L9945TR Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,101 pcs
3101 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
3,000 pcs
3000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
500 pcs
500 pcs On Request 1 On Request On Request 21+ On Request On Request

L9945TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Automotive Grade
Industrial Grade
Medical Grade
Military Grade
Mounting Type
SVHC Present
Supplier Device Package
Voltage
Voltage Supply

L9945TR Description

Short technical summary and product information.

The STMicroelectronics L9945TR is a Smart Power Integrated Circuit (IC) designed for specialized power management tasks. It operates across a wide input voltage range, supporting both low voltage (3.8V to 5.5V) and high voltage (4.5V to 36V) applications, ensuring robust performance in demanding environments.

 

This IC is housed in a 64-TQFP Exposed Pad package, measuring 10x10mm, which facilitates efficient heat dissipation. It is designed for reliable surface mounting on printed circuit boards (PCBs). The L9945TR is classified as automotive grade and meets the AEC-Q100 quality standard, making it suitable for automotive systems and other applications requiring high reliability and wide-range voltage regulation.

 

Key features include its suitability for automotive environments, enhanced thermal performance due to the exposed pad, and compliance with top quality and environmental standards. Its low moisture sensitivity allows for more flexible handling during manufacturing processes. This component is an excellent choice for projects requiring high-quality, automotive-grade power management with a broad input voltage capability and a compact surface-mount design.

L9945TR Quick Information

Product Type: Smart Power IC
Series: L9945
Canonical Name: L9945TR Smart Power IC
Subcategory: Power Management - Specialized

L9945TR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

L9945TR Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

L9945TR Features

  • Wide input voltage range: 3.8V to 36V.
  • Automotive grade, AEC-Q100 qualified.
  • 64-TQFP Exposed Pad package for thermal performance.
  • Designed for reliable surface mounting.
  • Suitable for automotive power management.

L9945TR Applications

  • Ideal for automotive power management systems.
  • Used in industrial voltage regulation.
  • Suitable for high-reliability environments.
  • Adaptable for modern electronics.

L9945TR FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the L9945TR?

The L9945TR operates with an input voltage range of 3.8V to 5.5V and 4.5V to 36V.

What type of package does the L9945TR come in?

The L9945TR is available in a 64-TQFP Exposed Pad package.

How is the L9945TR mounted?

The L9945TR is designed for surface mount installation.

What applications is the L9945TR suitable for?

The L9945TR is primarily intended for automotive applications.

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