L4974A
- Mfr.Part #
- L4974A
- Manufacturer
- STMicroelectronics
- Package / Case
- 20-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC REG BUCK ADJ 3.5A 20DIP
- Stock
- 8,129
- In Stock :
- 8,129
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- STMicroelectronics
- Product Category :
- Voltage Regulators - DC DC Switching Regulators
- Terminal Finish :
- Tin (Sn)
- Lifecycle Status :
- ACTIVE (Last Updated: 8 months ago)
- Input Voltage-Nom :
- 35V
- Width :
- 7.1mm
- REACH SVHC :
- No SVHC
- Base Part Number :
- L4974
- Min Output Voltage :
- 5.1V
- Efficiency :
- 90 %
- Number of Outputs :
- 1
- Control Mode :
- VOLTAGE-MODE
- Number of Terminations :
- 20
- Terminal Pitch :
- 2.54mm
- Length :
- 24.8mm
- Packaging :
- Tube
- Terminal Position :
- Dual
- Operating Temperature :
- -40°C~150°C TJ
- Function :
- Step-Down
- Control Technique :
- PULSE WIDTH MODULATION
- RoHS Status :
- ROHS3 Compliant
- ECCN Code :
- EAR99
- Frequency - Switching :
- 100kHz~200kHz
- Number of Pins :
- 20
- Voltage - Output (Max) :
- 40V
- Synchronous Rectifier :
- No
- Operating Supply Voltage :
- 50V
- Weight :
- 4.535924g
- Max Output Current :
- 3.5A
- Mounting Type :
- Through Hole
- Voltage - Input (Min) :
- 15V
- Analog IC - Other Type :
- SWITCHING REGULATOR
- Dropout Voltage :
- 450mV
- JESD-609 Code :
- e3
- Topology :
- Buck
- Output Configuration :
- Positive
- Nominal Input Voltage :
- 50V
- Frequency :
- 200kHz
- Output Voltage :
- 40V
- Mount :
- Through Hole
- Max Output Voltage :
- 40V
- Package / Case :
- 20-DIP (0.300, 7.62mm)
- Lead Free :
- Lead Free
- Height :
- 4.59mm
- Output Type :
- Adjustable
- Factory Lead Time :
- 13 Weeks
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Datasheets
- L4974A
L4974A Documents

[Voltage Regulators - DC DC Switching Regulators] Overview
Welcome to the world of efficient power management with STMicroelectronics' L4974A. This integrated circuit is a versatile DC/DC buck regulator, designed to deliver up to 3.5A of output current with high efficiency. With its adjustable output voltage, the L4974A empowers designers to fine-tune their power supply systems for optimal performance across various applications.
Whether you're looking to optimize energy consumption, enhance system reliability, or streamline your power delivery architecture, the L4974A offers a reliable solution backed by STMicroelectronics' renowned quality and innovation.
L4974A Features
- Adjustable Output Voltage
- High Efficiency
- Output Current up to 3.5A
- Integrated Switching Transistors
- Overcurrent Protection
- Thermal Shutdown
- 20-DIP Package for Easy Integration
L4974A Applications
- Industrial Automation: The L4974A is ideal for powering various industrial automation systems, including PLCs (Programmable Logic Controllers) and motor control units, ensuring stable and efficient operation even in demanding environments.
- Telecommunications Equipment: With its adjustable output voltage and high current capability, the L4974A is well-suited for telecommunications infrastructure, such as base stations and network equipment, providing reliable power conversion for continuous connectivity.
- Embedded Systems: From embedded computers to IoT (Internet of Things) devices, the L4974A offers compact and efficient power regulation, enabling prolonged battery life and optimized performance in diverse embedded applications.
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.
















