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TPS65251RHA
+StücklisteIC REG BCK ADJ 3A/2A TRPL 40VQFN
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HerstellerTexas Instruments
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Herstellerteil #TPS65251RHA
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Paket VQFN-40
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Auf Lager3284
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package / Case | Tube |
| Part Status | Obsolete |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 3 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 18V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 18V |
| Current - Output | 3A, 2A |
| Frequency - Switching | 300kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Übersicht
Description
The TPS65251RHA offers flexibility in design with features such as adjustable switching frequency, soft-start, and power sequencing. It also includes protection mechanisms like over-current, over-voltage, and thermal shutdown to ensure reliable operation. With a compact design and minimal external components required, it is ideal for applications in industrial, automotive, and consumer electronics sectors. The device comes in a thermally enhanced HTSSOP package, ensuring efficient heat dissipation and improved performance.
Equivalent
1. LM3150 - by Texas Instruments: A simple switcher controller.
2. MAX16909 - by Maxim Integrated: Power management ICs for automotive applications.
3. LTC3851A - by Analog Devices: A step-down DC/DC controller.
4. RT8259 - by Richtek: A synchronous step-down regulator.
5. MPQ8633 - by Monolithic Power Systems: A high-frequency, synchronous step-down converter.
These alternatives may differ in exact specifications, so reviewing datasheets is advisable for compatibility.
Features
1. Triple Synchronous Step-Down Converters: It integrates three converters, each capable of handling up to 3 A of output current, allowing for simultaneous power supply to different components.
2. Wide Input Voltage Range: Supports an input voltage range of 4.5 V to 18 V, suitable for diverse power sources.
3. Adjustable Switching Frequency: Offers a selectable switching frequency ranging from 250 kHz to 2.2 MHz to optimize efficiency and size.
4. High Efficiency: Provides high-efficiency power conversion, critical for battery-powered and energy-conscious devices.
5. Power Sequencing: Incorporates power sequencing and soft-start capabilities for controlled power-up and enhanced system reliability.
6. Protection Features: Includes over-current protection, thermal shutdown, and under-voltage lockout to safeguard the system from operational anomalies.
7. Compact Package: Available in a thermally efficient, space-saving VQFN package.
These features make the TPS65251RHA suitable for use in consumer electronics, industrial applications, and any system that requires multiple regulated supply voltages.
Pinout
The key functions of the TPS65251RHA include:
1. Three Buck Converters: Each can be independently set to operate at a specific output voltage, allowing for flexible power management.
2. High Efficiency: With integrated power FETs and optimized for low-loss operation.
3. Wide Input Voltage Range: Supports multiple power sources.
4. Sequencing and Tracking: Allows for precise power-up and power-down sequencing of the converters.
5. Programmable Switching Frequency: Provides flexibility for efficiency optimization.
6. Protection Features: Includes overcurrent, thermal shutdown, and undervoltage lockout.
The combination of these features makes the TPS65251RHA suitable for a wide range of applications requiring efficient and reliable power management solutions.
Manufacturer
Application
1. Consumer Electronics: Supports power management in devices like TVs, set-top boxes, and gaming consoles.
2. Industrial Equipment: Used in automation systems and motor drives for stable power delivery.
3. Communications Infrastructure: Provides power regulation in networking equipment, routers, and base stations.
4. Computing Systems: Powers motherboards and peripheral devices in computers and servers.
5. Automotive Electronics: Supports infotainment systems and advanced driver-assistance systems (ADAS).
Its flexibility with multiple output voltages and high efficiency makes it suitable for various applications requiring reliable power management.