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- L4978D - ST Microelectronics
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Manufacturer:ST Microelectronics
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ManyChip's Part#:MC8306857
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Category:DC to DC Converter
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Package:SOIC-16
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Datasheet:Datasheet 3D Model
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Description:L4978 Series 55V 220uA 300kHz Buck Through Hole Switching Regulator - SOIC-16
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Stock Locations:
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Availability:1,298 pcs In Stock
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MOQ:1 pcs
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Unit Price:$ 3.08
Updated at 02/11/2025 10:30:15(UTC+8)
Certifications
ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.
Description
- The L4978D is a step-down monolithic power Switching Regulator delivering 2A at a voltage between 3.3 and 50V (selected by a simple external divider). Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical Rdson of 0.25R) to obtain very high efficiency and high switching speed. A switching frequency up to 300kHz is achievable. A wide input voltage range between 8 to 55V and output voltage regulated from 3.3 to 50V cover the majority of today"s applications. Features of this new generation of DC-to-DC converter include pulse-by-pulse current limit, hiccup mode for short-circuit protection, voltage feed-forward regulation, soft-start, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown.
- Protection against feedback disconnection
- Inhibit for zero current consumption
- Zero load current operation
- Internal current limiting (pulse-by pulse and hiccup mode)
- Precise 3.3V (±1%) internal reference voltage
L4978D Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 16 Pin |
| Case/Package | SOIC-16 |
| Frequency | 300 kHz |
| Number of Outputs | 1 Output |
| Output Voltage | 3.3V ~ 50V |
| Output Current | 2 A |
| Number of Positions | 16 Position |
| Quiescent Current | 2.5 mA |
| voltage rating | 580 mV |
| Output Power | 800 mW |
| Switching Frequency | 100kHz ~ 300kHz |
| Input Voltage (Max) | 55 V |
| Input Voltage (Min) | 8 V |
| Output Voltage (Max) | 50 V |
| Output Voltage (Min) | 3.3 V |
| Output Current (Max) | 2 A |
| Operating Temperature (Max) | 150 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 8 V |
| Input Voltage | 8V ~ 55V |
| Show | |
| Size-Length | 10.5 mm |
| Size-Width | 7.6 mm |
| Size-Height | 2.35 mm |
| Operating Temperature | -40℃ ~ 150℃ |
| Product Lifecycle Status | Active |
| Packaging | Tube |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
| REACH SVHC Compliance | No SVHC |
| ECCN Code | EAR99 |
Order guide
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- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
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