L4978
- Mfr.Part #
- L4978
- Manufacturer
- STMicroelectronics
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC REG BUCK ADJUSTABLE 2A 8DIP
- Stock
- 550
- In Stock :
- 550
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- STMicroelectronics
- Product Category :
- Voltage Regulators - DC DC Switching Regulators
- Terminal Pitch :
- 2.54mm
- Operating Temperature :
- -40°C~150°C TJ
- Output Configuration :
- Positive
- Frequency - Switching :
- 100kHz~300kHz
- Width :
- 6.6mm
- Input Voltage-Nom :
- 24V
- Function :
- Step-Down
- Control Mode :
- VOLTAGE-MODE
- Mount :
- Through Hole
- Control Technique :
- PULSE WIDTH MODULATION
- Output Type :
- Adjustable
- Number of Outputs :
- 1
- Min Output Voltage :
- 3.3V
- Voltage - Input (Max) :
- 55V
- Factory Lead Time :
- 13 Weeks
- RoHS Status :
- ROHS3 Compliant
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Mounting Type :
- Through Hole
- Topology :
- Buck
- Terminal Position :
- Dual
- Frequency :
- 300kHz
- Output Voltage :
- 50V
- JESD-609 Code :
- e3
- Packaging :
- Tube
- Max Output Voltage :
- 50V
- Voltage - Input (Min) :
- 8V
- Efficiency :
- 87 %
- Number of Pins :
- 8
- REACH SVHC :
- No SVHC
- Analog IC - Other Type :
- SWITCHING REGULATOR
- ECCN Code :
- EAR99
- Height :
- 3.32mm
- Lead Free :
- Lead Free
- Contact Plating :
- Tin
- Operating Supply Voltage :
- 55V
- Number of Terminations :
- 8
- Supply Current-Max (Isup) :
- 6mA
- Synchronous Rectifier :
- No
- Length :
- 10.92mm
- Dropout Voltage :
- 580mV
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Max Output Current :
- 2A
- Base Part Number :
- L4978
- Datasheets
- L4978

[Voltage Regulators - DC DC Switching Regulators STMicroelectronics L4978] Overview
Introducing the L4978 from STMicroelectronics, a robust and versatile adjustable buck regulator designed to meet a broad range of power management requirements. This compact IC ensures high efficiency and reliability in converting input voltages into a precisely regulated output. Capable of delivering up to 2A of continuous current, the L4978 is housed in an 8DIP package, making it suitable for space-constrained applications while maintaining excellent thermal performance. The integration of advanced features such as over-temperature protection and short-circuit protection enhances its usability across various demanding applications, ensuring stable and safe operation under varying conditions.
[L4978] Features
- Adjustable Output Voltage: Allows for flexible control over output voltage settings, accommodating a range of device requirements.
- High Output Current up to 2A: Supports applications requiring significant power without performance degradation.
- Thermal Shutdown: Enhances reliability and safety by preventing overheating and potential damage to the IC.
- Short-Circuit Protection: Provides robust defense against conditions that could otherwise lead to circuit failures.
- Compact 8DIP Package: Ideal for applications with limited PCB space while ensuring efficient heat dissipation.
[L4978] Applications
- Portable Devices: Powers battery-operated handheld devices by efficiently managing power consumption and heat dissipation.
- Networking Equipment: Utilized in routers and network switches to provide stable and reliable power regulation, enhancing device performance and longevity.
- Consumer Electronics: Integrated into home entertainment systems and gaming consoles, where stable voltage levels are crucial for optimal functionality.
- Office Automation Equipment: Essential in printers and copiers for consistent power supply, ensuring smooth and efficient operations.
- Industrial Systems: Employs robust power management in factory automation equipment, supporting heavy-duty operations and machinery under varied electrical conditions.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















