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STMICROELECTRONICS L4974A Power Regulator Module
The L4974A is a high-efficiency monolithic stepdown switching regulator capable of delivering 3.5A output current with an adjustable voltage range of 5.1V to 40V. Utilizing advanced BCD technology and a DMOS output transistor, it offers features like reset and power fail, feedforward line regulation, thermal shutdown, and a built-in reference voltage of 5.1V ± 2%. Ideal for microprocessor systems, it supports switching frequencies up to 200kHz, ensuring compact external components and reduced overall system size. Its continuous operation mode and diagnostic functions make it suitable for power management in industrial and electronic applications.
STMICROELECTRONICS L4974A Power Regulator Module Specifications:
- Output Current: 3.5A
- Input Voltage Range: 15V to 50V
- Output Voltage Range: 5.1V to 40V
- Switching Frequency: Up to 200kHz
- Reference Voltage: 5.1V ± 2%
- Thermal Shutdown: Yes
- Reset and Power Fail Functions: Yes
- Feedforward Line Regulation: Yes
- Operating Mode: Continuous
- Peak Output Voltage at t=0.1μs: 5V
- Efficiency: Up to 90%
- Maximum Power Dissipation at Tpins < 90°C: 5W
- Pin Configuration: Bootstrap, Reset Delay, Reset Out, Reset Input, Ground, Frequency Compensation, Soft Start, Feedback, Sync Input, Output
- Junction Temperature Range: -40°C to 150°C
- Device Package: PowerDip 16 + 2 + 2
- Switching Frequency Variability: Controlled by external resistor and capacitor
- Input/Output Sync Pin: Yes
- Undervoltage Lockout with Hysteretic Turn-On: Yes
Buy the STMicroelectronics L4974A – Reliable Power Regulator for Industrial Applications
Discover the high-performance L4974A power regulator designed for efficient power management in industrial and electronic applications. It delivers up to 3.5A of output current with adjustable voltage from 5.1V to 40V, supporting switching frequencies up to 200kHz for reduced external component size. Featuring reset, power fail, thermal shutdown, and accurate voltage regulation, it ensures system stability and safety. Easy to integrate, it’s the ideal choice for microprocessor-based systems requiring high efficiency, reliability, and compact design. Purchase online today for seamless integration into your power solutions.
Buy STMicroelectronics L4974A now and experience unmatched reliability and performance in power regulation for industrial systems.
Frequently Asked Questions
Where can I buy STMICROELECTRONICS L4974A?
You can click on the BUY or RFQ button to purchase L4974A from an authorized STMICROELECTRONICS distributor.
How do I troubleshoot issues or seek technical support for part L4974A?
You can download the L4974A datasheet or visit the STMICROELECTRONICS website for support.
Who is the manufacturer of L4974A?
STMICROELECTRONICS