Datasheets
L4972AD by: STMicroelectronics

2 A SWITCHING REGULATOR

Part Details for L4972AD by STMicroelectronics

Results Overview of L4972AD by STMicroelectronics

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L4972AD Information

L4972AD 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.

Price & Stock for L4972AD

Part # Distributor Description Stock Price Buy
DISTI # 56P8345
Newark Dc-Dc Converters |Stmicroelectronics L4972AD RoHS: Not Compliant Min Qty: 1000 Package Multiple: 1 Date Code: 0 Container: Bulk 0
Buy Now
DISTI # L4972AD
Avnet Americas Conv DC-DC Single Step Down 15V to 50V 20-Pin SO - Rail/Tube (Alt: L4972AD) RoHS: Compliant Min Qty: 1000 Package Multiple: 1000 Container: Tube 0
RFQ
STMicroelectronics 2 A SWITCHING REGULATOR RoHS: Compliant Min Qty: 1 0
  • 1 $6.2500
  • 10 $5.6300
  • 25 $5.3100
  • 100 $4.6100
  • 250 $4.3700
  • 500 $3.9200
$3.9200 / $6.2500 Buy Now
Rochester Electronics L4972AD - 2A POWER SWITCH REG RoHS: Compliant Status: Obsolete Min Qty: 1 34
  • 1 $3.7900
  • 25 $3.7100
  • 100 $3.5600
  • 500 $3.4100
  • 1,000 $3.2200
$3.2200 / $3.7900 Buy Now
DISTI # L4972AD
TME Driver, DC/DC converter, 5.1÷40VDC, 2A, SO20, SMD, 200kHz, Ch: 1 Min Qty: 1 0
  • 1 $5.4500
  • 5 $4.9000
  • 25 $4.3400
  • 120 $3.9000
  • 400 $3.6300
$3.6300 / $5.4500 RFQ
DISTI # L4972AD
Avnet Silica Conv DCDC Single Step Down 15V to 50V 20Pin SO (Alt: L4972AD) RoHS: Compliant Min Qty: 40 Package Multiple: 40 Lead time: 143 Weeks, 0 Days Silica - 0
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DISTI # L4972AD
EBV Elektronik Conv DCDC Single Step Down 15V to 50V 20Pin SO (Alt: L4972AD) RoHS: Compliant Min Qty: 40 Package Multiple: 40 Lead time: 143 Weeks, 0 Days EBV - 0
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Part Details for L4972AD

L4972AD CAD Models

L4972AD Part Data Attributes

L4972AD STMicroelectronics
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L4972AD STMicroelectronics 2 A SWITCHING REGULATOR
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Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SOIC
Package Description PLASTIC, SO-20
Pin Count 20
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer STMicroelectronics
Analog IC - Other Type SWITCHING REGULATOR
Control Mode VOLTAGE-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 50 V
Input Voltage-Min 15 V
Input Voltage-Nom 35 V
JESD-30 Code R-PDSO-G20
JESD-609 Code e4
Length 12.8 mm
Moisture Sensitivity Level 3
Number of Functions 1
Number of Terminals 20
Output Current-Max 3.5 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 200 kHz
Technology BCDMOS
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 7.5 mm

Alternate Parts for L4972AD

This table gives cross-reference parts and alternative options found for L4972AD. 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 L4972AD, 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
L4972AD013TR STMicroelectronics Check for Price 2 A SWITCHING REGULATOR L4972AD vs L4972AD013TR
Part Number Manufacturer Composite Price Description Compare
HIP6301VCBZA-T Intersil Corporation Check for Price SWITCHING CONTROLLER, 1500kHz SWITCHING FREQ-MAX, PDSO20, LEAD FREE, PLASTIC, MS-013AC, SOIC-20 L4972AD vs HIP6301VCBZA-T
HIP6014CB Intersil Corporation Check for Price SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO20 L4972AD vs HIP6014CB
HIP6004BCB-T Rochester Electronics LLC Check for Price Switching Controller, Voltage-mode, 215kHz Switching Freq-Max, PDSO20, PLASTIC, MS-013AC, SOIC-20 L4972AD vs HIP6004BCB-T
IRU3005CWPBF International Rectifier Check for Price Switching Controller, 250kHz Switching Freq-Max, PDSO20, PLASTIC, SOIC-20 L4972AD vs IRU3005CWPBF
HIP6004ACB-T Intersil Corporation Check for Price SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO20 L4972AD vs HIP6004ACB-T
RC5054M Fairchild Semiconductor Corporation Check for Price Switching Controller, Voltage-mode, 215kHz Switching Freq-Max, PDSO20, SOIC-20 L4972AD vs RC5054M
HIP6301VCBZ Intersil Corporation Check for Price Microprocessor CORE Voltage Regulator Multiphase Buck PWM Controller; SOIC20; Temp Range: 0° to 70° L4972AD vs HIP6301VCBZ
HIP6004ACB Intersil Corporation Check for Price SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO20 L4972AD vs HIP6004ACB
IRU3011CW International Rectifier Check for Price Switching Controller, Voltage-mode, 250kHz Switching Freq-Max, CMOS, PDSO20, PLASTIC, SOIC-20 L4972AD vs IRU3011CW
HIP6004CB Intersil Corporation Check for Price SWITCHING CONTROLLER, 200kHz SWITCHING FREQ-MAX, PDSO20 L4972AD vs HIP6004CB

L4972AD Related Parts

L4972AD Frequently Asked Questions (FAQ)

  • The L4972AD can handle input voltages up to 40V, but it's recommended to keep it below 35V for reliable operation.

  • Choose an output capacitor with a value between 10uF to 100uF, and a voltage rating of at least 1.5 times the output voltage. A low ESR (Equivalent Series Resistance) capacitor is recommended for stability.

  • The L4972AD can operate with input voltages as low as 7V, but the output voltage regulation may not be guaranteed below 8V.

  • The L4972AD is rated for operation up to 150°C, but the maximum junction temperature should not exceed 125°C for reliable operation. Derate the output current accordingly for high-temperature operation.

  • Ensure the output capacitor is properly sized, and the input capacitor is at least 1uF. Also, keep the feedback loop components (R1, R2, and C2) close to the IC and use a low-ESR output capacitor.