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L4978
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Shipping Cost
Shipping starts at $40, but some countries will exceed $40. For
example (South Africa, Brazil, India, Pakistan, Israel, etc.)
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basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and
country.
Currently, our products are shipped through DHL, FedEx, SF, and UPS.
Delivery TimeOnce the goods are shipped, estimated delivery time depends on the shipping methods you chose:
FedEx International, 5-7 business days.
The following are some common countries' logistic time.
| Parameters | |
|---|---|
| Factory Lead Time | 13 Weeks |
| Contact Plating | Tin |
| Mount | Through Hole |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300, 7.62mm) |
| Number of Pins | 8 |
| Operating Temperature | -40°C~150°C TJ |
| Packaging | Tube |
| JESD-609 Code | e3 |
| Part Status | Active |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Number of Terminations | 8 |
| ECCN Code | EAR99 |
| Subcategory | Switching Regulator or Controllers |
| Technology | BCDMOS |
| Terminal Position | DUAL |
| Terminal Pitch | 2.54mm |
| Frequency | 300kHz |
| Base Part Number | L4978 |
| Function | Step-Down |
| Number of Outputs | 1 |
| Efficiency | 87 % |
| Voltage - Input (Max) | 55V |
| Output Voltage | 50V |
| Output Type | Adjustable |
| Max Output Current | 2A |
| Operating Supply Voltage | 55V |
| Voltage - Input (Min) | 8V |
| Input Voltage-Nom | 24V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Output Configuration | Positive |
| Max Output Voltage | 50V |
| Topology | Buck |
| Control Mode | VOLTAGE-MODE |
| Frequency - Switching | 100kHz~300kHz |
| Control Technique | PULSE WIDTH MODULATION |
| Supply Current-Max (Isup) | 6mA |
| Synchronous Rectifier | No |
| Dropout Voltage | 580mV |
| Min Output Voltage | 3.3V |
| Height | 3.32mm |
| Length | 10.92mm |
| Width | 6.6mm |
| REACH SVHC | No SVHC |
| RoHS Status | ROHS3 Compliant |
| Lead Free | Lead Free |
L4978 Overview
It is designed to provide optimal performance by utilizing the Tube package. Throughout this voltage regulator, there are 8 terminations. There is a SWITCHING REGULATOR type analog IC in this voltage regulator 12v that is used to convey analog signals. In order to save space, this harley voltage regulator is available in the 8-DIP (0.300, 7.62mm) package. DC DC switching regulator is configured with 1 outputs. Adjustable outputs are generated on the output pins of this adjusting voltage regulator. Through Hole-mounting is compatible with this switching regulator. When operating, adjusting voltage regulator's operating temperature should be kept at -40°C~150°C TJ. A DC-DC switching regulator of this type operates at a switching frequency of 100kHz~300kHz. The voltage regulator can operate with a dc to dc voltage regulator's minimum input voltage of 8V. Voltage regulators' input voltage is limited to 55V. To meet the switching regulator operation requirements, a nominal input voltage of 24V is provided. Listed under the subcategory of Switching Regulator or Controllers is this voltage regulator 12v. In the particular voltage regulators, the L4978 family is represented. Voltage of voltage regulator can be delivered at 50V volts. To operate the voltage regulator 12v, 8 pins are required. Ideally this switch regulator should have an output voltage of about 3.3V at the very least. Accordingly, dc to dc voltage regulator's maximum output current is 2A A. The maximum voltage of voltage regulator 12v DC DC switching regulator can produce is 50V, which is the highest available. With 55V as the supply voltage, this DC-DC switching regulator will operate. It is capable of maintaining high accuracy with the dc to dc voltage regulator's frequency of 300kHz.
L4978 Features
1 outputs
8 pins
Operating supply voltage of 55V
L4978 Applications
There are a lot of STMicroelectronics L4978 Voltage Regulators applications.
- Boring machines
- Various precision measuring instruments
- Flexible manufacturing cells
- Medical monitoring systems
- Product burn-in
- Production lines
- Refrigerators of central air conditioners
- Arc suppression circuits
- Electrical power transmission
- Terrestrial set-top boxes