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42-V SYNCHRONOUS BUCK DC/DC CONT
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HerstellerTexas Instruments
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Herstellerteil #LM25148RGYR
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Datenblatt LM25148RGYR DataSheet
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Spezifikationen
| Attribut | Wert |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 3.5V ~ 42V |
| Frequency - Switching | 100kHz ~ 2.2MHz |
| Duty Cycle (Max) | 100% |
| Synchronous Rectifier | Yes |
| Clock Sync | Yes |
| Control Features | Current Limit, Power Good, Ramp, Soft Start |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | 24-VFQFN Exposed Pad |
| Supplier Device Package | 24-VQFN (5.5x3.5) |
| Base Product Number | LM25148 |
Übersicht
Description
Key features of the LM25148 include a wide input voltage range, typically from 4.5V to 60V, and adjustable output voltage settings. It supports high efficiency, often exceeding 90%, which helps reduce heat generation and improves overall system reliability. The device includes integrated FETs, current mode control, and various protection features like overvoltage, undervoltage, and overcurrent protection.
The LM25148RGYR is known for its compact package, making it suitable for space-constrained applications. Its versatility in handling different loads and conditions makes it a popular choice among engineers for designing reliable power supply circuits.
Equivalent
Features
1. Input Voltage Range: Supports a wide input voltage range from 4.5V to 60V, making it suitable for automotive and industrial applications.
2. Output Current: Delivers up to 3A of continuous output current with high efficiency.
3. Adjustable Output Voltage: Allows for a customizable output voltage from 0.8V to 15V.
4. Integrated Compensation: The regulator incorporates internal compensation, simplifying design and enhancing stability.
5. Thermal Protection: Features thermal shutdown and current limiting for enhanced protection.
6. Low Quiescent Current: Offers low quiescent current, which improves battery life in portable applications.
7. Switching Frequency: Operates at a fixed switching frequency, typically around 340 kHz, which helps in minimizing external component sizes.
8. Package: Available in an HTQFP (leaded) package, suitable for various PCB layouts.
These features make the LM25148RGYR ideal for power supply solutions in automotive, industrial, and consumer electronic applications.
Pinout
Key features include:
- Input voltage range: 4.5V to 60V
- Output current: up to 3A
- Integrated features such as peak current mode control, adjustable output voltage, and protection mechanisms (overcurrent, overvoltage, thermal shutdown).
The pin configuration includes power input, ground, output voltage, compensation network, switching node, and various control pins for enable, frequency setting, and feedback. This configuration allows for versatile applications in industrial, automotive, and telecom sectors.
Manufacturer
Texas Instruments is recognized for its innovation in analog and mixed-signal technologies, which are essential for a multitude of applications such as power management, data converters, and microcontrollers. The LM25148RGYR is a high-performance step-down (buck) regulator designed for power management applications, providing efficiency and performance for various electronic devices. TI is also known for its commitment to research and development, aiming to enhance the capabilities of electronic systems across numerous sectors.