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TPS54331DDAR
+StücklisteIC REG BUCK ADJUSTABLE 3A 8SOPWR
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HerstellerTexas Instruments
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Herstellerteil #TPS54331DDAR
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Paket SOIC-8
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Auf Lager1870
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | Eco-Mode™ |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.5V |
| Voltage - Input (Max) | 28V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 25V |
| Current - Output | 3A |
| Frequency - Switching | 570kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
Übersicht
Description
Key features include a wide input voltage range from 3.5 V to 28 V, a fixed frequency of 570 kHz, and the ability to deliver up to 3 A of continuous output current. The device integrates an N-channel MOSFET and supports adjustable output voltages via external resistors. It also includes features like frequency foldback, thermal shutdown, and cycle-by-cycle current limiting for robust performance under varying conditions.
The TPS54331DDAR is available in a compact SOIC-8 package with PowerPAD™ for enhanced thermal performance. This makes it a suitable choice for compact, energy-efficient power supply designs requiring reliable operation and minimal external components.
Equivalent
1. LM2596 - A 3A, 40V step-down converter.
2. LM2675 - A 1A, 40V step-down regulator.
3. MP2307 by Monolithic Power Systems - A 3A, 23V step-down converter.
4. LTC3633 by Analog Devices - A dual output, 3A each, step-down regulator.
5. AP3431 by Diodes Incorporated - A 3A, 24V step-down converter.
These alternatives may have different specs; verify compatibility for your application.
Features
1. Input Voltage Range: It operates with an input voltage range from 3.5V to 28V, making it versatile for various applications.
2. Output Current: It can deliver up to 3A of continuous output current, supporting medium to high power requirements.
3. Efficiency: The device boasts high efficiency up to 95%, ideal for power-sensitive applications.
4. Switching Frequency: It has an adjustable switching frequency ranging from 50 kHz to 1.5 MHz, allowing for flexibility in design and optimization.
5. Integrated MOSFET: The TPS54331 integrates a high-side MOSFET for efficient power conversion, reducing the need for external components.
6. Protection Features: It includes features like thermal shutdown, overcurrent protection, and undervoltage lockout to enhance reliability and safety.
7. Soft Start: The converter has a programmable soft start feature to control inrush current during startup.
8. Package: Available in an 8-pin SO PowerPAD™ package, which aids in thermal performance and compact design.
These features make the TPS54331DDAR suitable for a wide range of applications, including consumer electronics, industrial equipment, and automotive systems.
Pinout
1. BOOT (Pin 1): A bootstrap pin that provides a drive voltage higher than the input voltage to power the high-side MOSFET gate.
2. VIN (Pin 2): The input voltage supply pin for the power supply, supporting a range of 3.5V to 28V.
3. EN (Pin 3): The enable pin used to turn the device on or off. It can be connected to a logic level or left floating for automatic enable.
4. COMP (Pin 4): This pin is used for compensating the control loop of the power supply.
5. GND (Pin 5): Ground pin for the device.
6. RT/CLK (Pin 6): Allows setting the switching frequency through an external resistor or synchronization to an external clock.
7. FB (Pin 7): Feedback pin used to set the output voltage through a resistive divider network.
8. SW (Pin 8): The switch node pin, connected to the inductor and the internal switch.
This device is commonly used for efficient step-down power conversion in various electronic applications.
Manufacturer
Application
1. Consumer Electronics: Powers devices like TVs, set-top boxes, and gaming consoles.
2. Industrial Equipment: Used for powering control systems and industrial automation tools.
3. Telecommunications: Manages power in networking devices and communication systems.
4. Automotive: Supports in-vehicle electronic systems by providing stable power supply.
5. Computing Devices: Supplies power to components in computers and servers.
6. Portable Devices: Extends battery life in mobile gadgets and wearables.
Overall, it's ideal for systems requiring efficient step-down power conversion.