L4973D3.3

STMicroelectronics L4973D3.3

Part Number:
L4973D3.3
Manufacturer:
STMicroelectronics
Ventron No:
3850898-L4973D3.3
Description:
IC REG BUCK ADJ/3.3V 3.5A SOIC20
ECAD Model:
Datasheet:
L4973D3.3

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Specifications
STMicroelectronics L4973D3.3 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics L4973D3.3.
  • Factory Lead Time
    25 Weeks
  • Lifecycle Status
    ACTIVE (Last Updated: 6 months ago)
  • Mount
    Surface Mount
  • Mounting Type
    Surface Mount
  • Package / Case
    20-SOIC (0.295, 7.50mm Width)
  • Number of Pins
    20
  • Operating Temperature
    -40°C~150°C TJ
  • Packaging
    Tube
  • JESD-609 Code
    e4
  • Part Status
    Active
  • Moisture Sensitivity Level (MSL)
    3 (168 Hours)
  • Number of Terminations
    20
  • ECCN Code
    EAR99
  • Terminal Finish
    Nickel/Palladium/Gold (Ni/Pd/Au)
  • Subcategory
    Switching Regulator or Controllers
  • Technology
    BCDMOS
  • Terminal Position
    DUAL
  • Terminal Form
    GULL WING
  • Peak Reflow Temperature (Cel)
    250
  • Reflow Temperature-Max (s)
    30
  • Base Part Number
    L4973
  • Function
    Step-Down
  • Number of Outputs
    1
  • Efficiency
    85 %
  • Output Voltage
    50V
  • Output Type
    Adjustable (Fixed)
  • Max Output Current
    3.5A
  • Operating Supply Voltage
    55V
  • Input Voltage-Nom
    24V
  • Min Supply Voltage
    8V
  • Analog IC - Other Type
    SWITCHING REGULATOR
  • Nominal Supply Current
    16mA
  • Output Configuration
    Positive
  • Max Output Voltage
    50V
  • Voltage - Output (Min/Fixed)
    0.5V 3.3V
  • Topology
    Buck
  • Control Mode
    VOLTAGE-MODE
  • Frequency - Switching
    100kHz~300kHz
  • Control Technique
    PULSE WIDTH MODULATION
  • Synchronous Rectifier
    No
  • Min Output Voltage
    500mV
  • Voltage - Output (Max)
    50V
  • Height
    2.35mm
  • Length
    13mm
  • Width
    7.6mm
  • REACH SVHC
    No SVHC
  • RoHS Status
    ROHS3 Compliant
  • Lead Free
    Lead Free
Description
L4973D3.3 Overview
STMicroelectronics is a well-known brand in the electronics industry, known for its high-quality and reliable products. One of their popular products is the PMIC - Voltage Regulators - DC DC Switching Regulators chip. This chip falls under the PMIC - Voltage Regulators - DC DC Switching Regulators category, which is essential in regulating the voltage of electronic devices. The chip has been assigned the JESD-609 Code e4, indicating that it meets the industry standards for performance and quality. This is further supported by its Active status, meaning it is currently in production and readily available for purchase. The chip has 20 terminations, providing multiple connection points for efficient and stable operation. It has a maximum reflow temperature of 30 seconds, ensuring that it can withstand high temperatures during the manufacturing process. The output type of this chip is adjustable, giving users the flexibility to regulate the output voltage according to their needs. It has an operating supply voltage of 55V, making it suitable for a wide range of electronic devices. The output configuration is positive, which is ideal for applications that require a positive voltage output. The voltage output of this chip can be adjusted between 0.5V to 3.3V, providing a wide range of options for different electronic devices. The chip has a length of 13mm, making it compact and suitable for various circuit designs. Additionally, it is also ROHS3 compliant, ensuring that it is environmentally friendly and safe for use. With these parameters, it is evident that the STMicroelectronics PMIC - Voltage Regulators - DC DC Switching Regulators chip is a top-quality and versatile component that can meet the demands of various electronic devices.

L4973D3.3 Features
1 outputs
Peak reflow temperature (Cel) of 250
20 pins
Operating supply voltage of 55V

L4973D3.3 Applications
There are a lot of STMicroelectronics L4973D3.3 Voltage Regulators applications.

Wind power
Electric water heaters
Arc suppression circuits
Large fire protection systems
Computer rooms
Emergency lighting monitoring equipment
USB circuits
Ball screw pair
Flexible manufacturing cells
Power supplies of electronic gadgets
L4973D3.3 More Descriptions
3.5A STEP DOWN SWITCHING REGULATOR | IC REG BUCK ADJ/3.3V 3.5A 20SO
L4973 Series 3.5 A Step Down Monolithic Power Switching Regulator - SOIC-20
Switching Regulator, Voltage-mode, 5.5A, 300kHz Switching Freq-Max, BCDMOS, PDSO20
Dc-Dc Switching Buck (Step Down) Regulator, Adjustable, 8V-55Vin, 500Mv-50Vout, 3.5Aout, Soic-20 Rohs Compliant: Yes |Stmicroelectronics L4973D3.3
DC/DC CONV, BUCK, 100KHZ, SOIC-20; Topology: Buck (Step Down); Input Voltage Min: 8V; Input Voltage Max: 55V; No. of Outputs: 1Outputs; DC / DC Converter IC Case: SOIC; No. of Pins: 20Pins; Available until stocks are exhausted
L4973 Tube Nickel/Palladium/Gold (Ni/Pd/Au) ACTIVE (Last Updated: 6months ago) DC to DC switching regulator 24V 7.6mm 3.5A 100kHz~300kHz
The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical RDS(on) of 0.15Omega ) to obtain very high efficiency and very fast switching times. Switching frequency up to 300KHz are achievable (the maximum power dissipation of the packages must be observed). A wide input voltage range between 8V to 55V and output voltages regulated from 3.3V to 40V cover the majority of the today applications. Features of this new generation of DC-DC converter includes pulse by pulse current limit, hiccup mode for output short circuit protection, voltage feed forward regulation, soft start, input/output synchronization, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown. Packages available are in plastic dual in line, DIP- 18 (12 3 3) for standard assembly, and SO20 (12 4 4) for SMD assembly.
Certification
  • ISO 9001
  • ISO 13485
  • ISO 45001
  • ASA
  • ESD
  • DUNS
  • SMTA
  • ROHS

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