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Power Circuits / Switching Regulator or Controllers / L4973D3.3-013TR
Datasheets
L4973D3.3-013TR by:

3.5 A step down switching regulator

Part Details for L4973D3.3-013TR by STMicroelectronics

Results Overview of L4973D3.3-013TR by STMicroelectronics

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L4973D3.3-013TR Information

L4973D3.3-013TR by STMicroelectronics is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
91753-013TRLF Amphenol Communications Solutions Minitek® 2.00mm, Board to Board, Unshrouded Vertical Header, Surface Mount, Double Row, 50 Positions, 2.00mm (0.079in) Pitch..
MSP430F2013TRSAR Texas Instruments 16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, 16-Bit Sigma-Delta A/D, USI for SPI/I2C 16-QFN -40 to 105
MSP430F2013TRSAT Texas Instruments 16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, 16-Bit Sigma-Delta A/D, USI for SPI/I2C 16-QFN -40 to 105

Price & Stock for L4973D3.3-013TR

Part # Distributor Description Stock Price Buy
DISTI # 56P8348
Newark Dc-Dc Converters |Stmicroelectronics L4973D3.3-013TR RoHS: Not Compliant Min Qty: 1000 Package Multiple: 1 Date Code: 0 Container: Reel 0
Buy Now
DISTI # 79AH3805
Newark Buck Regulators Rohs Compliant: Yes |Stmicroelectronics L4973D3.3-013TR RoHS: Compliant Min Qty: 1000 Package Multiple: 1 Date Code: 0 Container: Reel 0
  • 1 $3.5200
  • 3,000 $3.3700
  • 6,000 $3.1400
  • 12,000 $2.9200
  • 18,000 $2.8100
  • 30,000 $2.7600
$2.7600 / $3.5200 Buy Now
DISTI # 497-3358-1-ND
DigiKey IC REG BUCK ADJ/0.5V 3.5A 20SO Min Qty: 1 Lead time: 10 Weeks Container: Cut Tape (CT), Tape & Reel (TR) 2888
In Stock
  • 1 $4.6800
  • 10 $3.5540
  • 25 $3.2736
  • 100 $2.9653
  • 250 $2.8183
  • 500 $2.7297
  • 1,000 $2.6568
  • 2,000 $2.5968
  • 3,000 $2.5668
$2.5668 / $4.6800 Buy Now
DISTI # L4973D3.3-013TR
Avnet Americas Conv DC-DC Single Step Down 8V to 55V 20-Pin SO T/R - Tape and Reel (Alt: L4973D3.3-013TR) RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Lead time: 10 Weeks, 0 Days Container: Reel 32000
  • 1,000 $2.4051
  • 2,000 $2.3899
  • 4,000 $2.3457
  • 6,000 $2.3030
  • 8,000 $2.2619
$2.2619 / $2.4051 Buy Now
DISTI # 511-L4973D3.3-013TR
Mouser Electronics Switching Voltage Regulators 3.3V 3.5A Step-Down RoHS: Compliant 1138
  • 1 $3.9800
  • 10 $3.2100
  • 25 $3.0000
  • 100 $2.7900
  • 250 $2.6800
  • 500 $2.5800
  • 1,000 $2.4600
$2.4600 / $3.9800 Buy Now
DISTI # E02:0323_00207054
Arrow Electronics Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20-Pin SO T/R RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Lead time: 10 Weeks Europe - 2000
  • 1,000 $2.3443
$2.3443 Buy Now
DISTI # V36:1790_06548024
Arrow Electronics Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20-Pin SO T/R RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Lead time: 10 Weeks Date Code: 2450 Americas - 1000
  • 1,000 $2.4530
  • 3,000 $2.3060
  • 6,000 $2.2820
  • 12,000 $2.2760
$2.2760 / $2.4530 Buy Now
DISTI # V72:2272_06548024
Arrow Electronics Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20-Pin SO T/R RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 10 Weeks Date Code: 2317 Container: Cut Strips Americas - 539
  • 1 $3.1180
  • 10 $2.7550
  • 25 $2.6440
  • 100 $2.5270
  • 250 $2.5020
  • 500 $2.4780
$2.4780 / $3.1180 Buy Now
STMicroelectronics 3.5 A step down switching regulator RoHS: Compliant Min Qty: 1 1138
  • 1 $3.9000
  • 10 $3.1500
  • 25 $2.9400
  • 100 $2.7300
  • 250 $2.6300
  • 500 $2.5300
$2.5300 / $3.9000 Buy Now
DISTI # 69144286
Verical Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20-Pin SO T/R RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Americas - 2000
  • 1,000 $4.2118
$4.2118 Buy Now
DISTI # 87859100
Verical Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20-Pin SO T/R RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Date Code: 2450 Americas - 1000
  • 1,000 $2.4530
  • 3,000 $2.3060
  • 6,000 $2.2820
  • 12,000 $2.2760
$2.2760 / $2.4530 Buy Now
DISTI # 67608372
Verical Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20-Pin SO T/R RoHS: Compliant Min Qty: 3 Package Multiple: 1 Date Code: 2317 Americas - 539
  • 3 $3.1180
  • 10 $2.7550
  • 25 $2.6440
  • 100 $2.5270
  • 250 $2.5020
  • 500 $2.4780
$2.4780 / $3.1180 Buy Now
Quest Components SWITCHING REGULATOR, VOLTAGE-MODE, 5.5A, 300KHZ SWITCHING FREQ-MAX, BCDMOS, PDSO20 123
  • 1 $6.7050
  • 7 $3.3525
  • 61 $2.9055
$2.9055 / $6.7050 Buy Now
DISTI # L4973D3.3-013TR
TME Driver, DC/DC converter, Uout: 0.5÷50VDC, 3.5A, SO20, SMD, Ch: 1 Min Qty: 1 0
  • 1 $4.5100
  • 5 $4.3600
  • 25 $4.0400
  • 100 $3.5800
  • 250 $3.1600
$3.1600 / $4.5100 RFQ
DISTI # L4973D3.3-013TR
IBS Electronics SWITCHING REGULATOR VOLTAGE-MODE 5.5A 300KHZ SWITCHING FREQ-MAX BCDMOS PDSO20 Min Qty: 1000 Package Multiple: 1 1000
  • 1,000 $3.0160
  • 2,000 $2.9900
  • 3,000 $2.9770
$2.9770 / $3.0160 Buy Now
DISTI # L4973D3.3-013TR
Avnet Silica Conv DCDC Single Step Down 8V to 55V 20Pin SO TR (Alt: L4973D3.3-013TR) RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Lead time: 11 Weeks, 0 Days Silica - 10000
Buy Now
DISTI # L4973D3.3-013TR
Avnet Silica Conv DCDC Single Step Down 8V to 55V 20Pin SO TR (Alt: L4973D3.3-013TR) RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Lead time: 15 Weeks, 0 Days Silica - 0
Buy Now
DISTI # L4973D3.3-013TR
EBV Elektronik Conv DCDC Single Step Down 8V to 55V 20Pin SO TR (Alt: L4973D3.3-013TR) RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Lead time: 11 Weeks, 0 Days EBV - 0
Buy Now
LCSC Step-down type Fixed 3.3V 3.5A 8V55V SO-20-300mil DC-DC Converters ROHS 6
  • 1 $7.3640
  • 10 $6.3758
  • 30 $5.7738
  • 100 $5.2684
$5.2684 / $7.3640 Buy Now
Vyrian Other Function Semiconductors 5355
RFQ
Win Source Electronics IC REG BUCK ADJ/3.3V 3.5A 20SOIC 10778
  • 9 $6.5692
  • 22 $5.3901
  • 34 $5.2217
  • 46 $5.0531
  • 60 $4.8847
  • 80 $4.3795
$4.3795 / $6.5692 Buy Now

Part Details for L4973D3.3-013TR

L4973D3.3-013TR CAD Models

  • Part Symbol

    Part Symbol

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L4973D3.3-013TR Part Data Attributes

Parametric Data
L4973D3.3-013TR STMicroelectronics
Buy Now Datasheet
Compare Parts:
L4973D3.3-013TR STMicroelectronics 3.5 A step down switching regulator
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SOIC
Pin Count 20
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 10 Weeks
Samacsys Manufacturer STMicroelectronics
Analog IC - Other Type SWITCHING REGULATOR
Control Mode VOLTAGE-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 55 V
Input Voltage-Min 8 V
Input Voltage-Nom 24 V
JESD-30 Code R-PDSO-G20
Length 12.8 mm
Moisture Sensitivity Level 3
Number of Functions 1
Number of Terminals 20
Output Current-Max 5.5 A
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP20,.4
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 2.65 mm
Surface Mount YES
Switcher Configuration BUCK
Switching Frequency-Max 300 kHz
Technology BCDMOS
Terminal Finish Tin (Sn) - immersion
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Width 7.5 mm

Alternate Parts for L4973D3.3-013TR

This table gives cross-reference parts and alternative options found for L4973D3.3-013TR. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of L4973D3.3-013TR, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
L4972AD STMicroelectronics $3.7078 2 A SWITCHING REGULATOR L4973D3.3-013TR vs L4972AD
L4973D5.1-013TR STMicroelectronics $3.8417 3.5 A step down switching regulator L4973D3.3-013TR vs L4973D5.1-013TR

L4973D3.3-013TR Related Parts

L4973D3.3-013TR Frequently Asked Questions (FAQ)

  • The maximum input voltage is 15V, but it's recommended to keep it below 12V for optimal performance and reliability.

  • To ensure stable and accurate output voltage, make sure to use a suitable output capacitor with a low ESR (Equivalent Series Resistance) and a sufficient capacitance value (e.g., 10uF). Also, ensure the input voltage is within the recommended range and the device is operated within the specified temperature range.

  • The maximum output current is 1.5A, but it's recommended to keep it below 1A for optimal performance and reliability. Exceeding the maximum output current may lead to overheating and reduced lifespan.

  • To protect the device from overheating, ensure good thermal conduction by using a heat sink or a thermal pad, and keep the device away from high-temperature sources. Also, avoid operating the device at maximum output current for extended periods.

  • The L4973D3.3-013TR is rated for operation up to 125°C, but it's recommended to keep the junction temperature below 115°C for optimal performance and reliability. Use a heat sink or thermal pad to ensure good thermal conduction.

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