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Part Details for L4978D by STMicroelectronics
Results Overview of L4978D by STMicroelectronics
- Distributor Offerings: (14 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Available)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
Applications
Energy and Power Systems
Renewable Energy
Automotive
L4978D Information
L4978D 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 L4978D
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
1077139
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Farnell | IC, BUCK REG, SMD, 4978, SOIC16 RoHS: Compliant Min Qty: 1 Lead time: 14 Weeks, 1 Days Container: Cut Tape | 1431 |
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$2.2134 / $3.7681 | Buy Now |
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DISTI #
1077139RL
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Farnell | IC, BUCK REG, SMD, 4978, SOIC16 RoHS: Compliant Min Qty: 100 Lead time: 14 Weeks, 1 Days Container: Reel | 1431 |
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$2.2134 / $2.3715 | Buy Now |
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DISTI #
497-5794-5-ND
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DigiKey | IC REG BUCK ADJ 2A 16SO W Min Qty: 1 Lead time: 10 Weeks Container: Tube |
1064 In Stock |
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$2.1005 / $3.8700 | Buy Now |
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DISTI #
L4978D
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Avnet Americas | DC/DC Switching Regulator, Adjustable, Buck (Step Down), Single Output, 3.3 V to 50 V, 2 A, 100 kHz, 16 Pins, WSOIC - Rail/Tube (Alt: L4978D) RoHS: Compliant Min Qty: 1225 Package Multiple: 1225 Lead time: 10 Weeks, 0 Days Container: Tube | 0 |
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$1.8236 / $1.8612 | Buy Now |
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DISTI #
511-L4978D
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Mouser Electronics | Switching Voltage Regulators 3.3 to 50V Step-Down RoHS: Compliant | 1649 |
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$2.0200 / $3.4100 | Buy Now |
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STMicroelectronics | 2A Step down switching regulator RoHS: Compliant Min Qty: 1 | 1639 |
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$2.4000 / $5.1000 | Buy Now |
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Quest Components | SWITCHING REGULATOR, VOLTAGE-MODE, 3.5A, 300KHZ SWITCHING FREQ-MAX, BCDMOS, PDSO16 | 158 |
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$1.8500 / $4.0000 | Buy Now |
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Quest Components | SWITCHING REGULATOR, VOLTAGE-MODE, 3.5A, 300KHZ SWITCHING FREQ-MAX, BCDMOS, PDSO16 | 23 |
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$2.3288 / $4.6575 | Buy Now |
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DISTI #
L4978D
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TME | Driver, DC/DC converter, Uout: 3.3÷50VDC, 2A, SO16-W, SMD, 300kHz Min Qty: 1 | 57 |
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$2.3200 / $3.3400 | Buy Now |
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ComSIT USA | Electronic Component RoHS: Compliant |
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RFQ |
Part Details for L4978D
L4978D CAD Models
L4978D Part Data Attributes
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L4978D
STMicroelectronics
Buy Now
Datasheet
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Compare Parts:
L4978D
STMicroelectronics
2A Step down switching regulator
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | STMICROELECTRONICS | |
| Part Package Code | SOIC | |
| Package Description | SO-16 | |
| Pin Count | 16 | |
| 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-G16 | |
| JESD-609 Code | e4 | |
| Length | 10.3 mm | |
| Moisture Sensitivity Level | 3 | |
| Number of Functions | 1 | |
| Number of Terminals | 16 | |
| Output Current-Max | 3.5 A | |
| Output Voltage-Nom | 3.36 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP16,.4 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Peak Reflow Temperature (Cel) | 250 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 2.65 mm | |
| Supply Current-Max (Isup) | 6 mA | |
| Surface Mount | YES | |
| Switcher Configuration | BUCK | |
| Switching Frequency-Max | 300 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 |
L4978D Frequently Asked Questions (FAQ)
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The L4978D can handle input voltages up to 40V, but it's recommended to keep it below 30V for reliable operation.
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Choose an output capacitor with a value between 10uF to 100uF, and a voltage rating of at least 10V. A low ESR (Equivalent Series Resistance) capacitor is recommended for stability.
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The L4978D requires a minimum input voltage of 7V to regulate properly, but it's recommended to keep it above 8V for optimal performance.
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The L4978D is rated for operation up to 150°C, but it's recommended to derate the output current and input voltage at high temperatures to ensure reliable operation.
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Use a TVS (Transient Voltage Suppressor) diode or a voltage clamp circuit to protect the L4978D from input voltage surges and spikes.