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STMicroelectronics Buck Converter Surface Mount 5.1V Output Voltage 3.5A Output Current 4W Power L4973D5.1
Specifications
| Country of Origin | India |
|---|---|
| Brand | STMicroelectronics |
| Power | 4W |
| Efficiency | 90% |
| Length | 13mm |
| Model | L4973D5.1 |
| Depth | 2.65mm |
| Width | 7.6mm |
| Mount Type | Surface |
| Series | L4973 |
| Output Current | 3.5A |
| Maximum Operating Temperature | 150°C |
| Package Type | SOIC |
| Load Regulation | 25 mV |
| Minimum Operating Temperature | -40°C |
| Number of outputs | 1 |
| Maximum Input Voltage | 55V |
| Line Regulation | 10 mV |
| Minimum Input Voltage | 8V |
| Number of Pins | 20 |
| Output Voltage 1 | 5.1V |
| Output Voltage 2 | 50V |
Key Features
- Surface mount design suitable for compact PCB integration.
- Operates with input voltages between 8V and 55V, offering versatility in power supply applications.
- Features 90% efficiency for reduced energy loss and improved thermal performance.
- Wide operating temperature range from -40°C to 150°C for reliable use in harsh environments.
- Equipped with 20 pins in an SOIC package measuring 13mm length, 7.6mm width, and 2.65mm depth.
- Excellent line regulation of 10mV and load regulation of 25mV ensure stable output voltage.
- Part of the L4973 series known for monolithic switching regulators with high switching frequency capability.
- Designed for industrial and electronic power supply applications requiring precise voltage control.
Product Description
STMicroelectronics L4973D5.1 is a surface mount buck converter engineered as a high-performance step-down regulator providing a fixed 5.1V output voltage delivering up to 3.5A output current with a power rating of 4 watts. Its monolithic design supports wide input voltage range from 8V to 55V, making it suitable for various DC-DC conversion needs in industrial, electronic component manufacturing, and power management circuits.
This device boasts an efficiency of 90%, minimizing power loss and heat generation during operation. The robust operating temperature range of -40°C to 150°C allows deployment in demanding environments including automotive, industrial control, and HVAC systems where thermal resilience is crucial.
Encased in a compact SOIC package with dimensions 13mm (L) x 7.6mm (W) x 2.65mm (D), it utilizes 20 pins for surface mounting on PCBs, facilitating space-saving assembly and high-density circuit designs.
With excellent line regulation at 10 mV and load regulation of 25 mV, the L4973D5.1 ensures stable and accurate voltage output despite fluctuating inputs and varying loads, essential for precision electronic applications.
This product is part of the L4973 series from STMicroelectronics, well-regarded for reliable, high-frequency switching regulators capable of delivering output currents up to 4A with superior electrical characteristics and featuring no external standards or approvals.
Surface mount compact SOIC package for easy PCB integration. Wide operating temperature range suitable for harsh industrial conditions. High efficiency minimizes power loss during voltage conversion. Accurate output voltage regulation under varying loads and line voltage.
Compatible with various power supply and electronic circuits in industrial and electronic manufacturing sectors. 20-pin configuration supports robust electrical connections and signal integrity.
Ideal for industrial electronics, power supplies, automation controls, and embedded systems requiring efficient voltage step-down conversion. Explore further electronic components and switching regulators to enhance your circuit designs at EnvMart.
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Frequently Asked Questions
The L4973D5.1 provides a fixed output voltage of 5.1V.
This model can deliver up to 3.5A of output current.
It has an efficiency rating of 90%, which helps minimize power loss during operation.
The L4973D5.1 operates with input voltages ranging from 8V to 55V.
The SOIC package measures 13mm in length, 7.6mm in width, and 2.65mm in depth.
It operates within a temperature range of -40°C to 150°C, suitable for harsh environments.
This model is designed for surface mounting on PCBs.
The load regulation is specified at 25 mV, ensuring stable output under varying loads.
It features a line regulation of 10 mV, which helps maintain output stability despite input fluctuations.
This buck converter has 20 pins for robust electrical connections.
It is suitable for industrial electronics, power supplies, automation controls, and embedded systems requiring efficient voltage step-down conversion.
This model is part of the L4973 series known for high-frequency switching regulators.
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