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TPS54232DR
+物料清單IC REG BUCK ADJUSTABLE 2A 8SOIC
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製造商德州儀器
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製造商部分 #TPS54232DR
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包裹 SOIC (D)-8
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有存貨2898
365 天品質保證
7*24 小時服務保證
90-日售後保障
正品保證
規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | Eco-Mode™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3.5V |
| Voltage-Input(Max) | 28V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 25V |
| Current-Output | 2A |
| Frequency-Switching | 1MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
概述
Description
Key features of the TPS54232DR include a fixed-frequency (typically 1 MHz) operation for easy filtering, an integrated high-side MOSFET for minimal external components, and a wide output voltage adjustability from 0.8V up to input voltage. It also features current mode control, which provides simple external compensation and flexible component selection. Additionally, the converter includes protection features such as current limit, thermal shutdown, and undervoltage lockout.
This device is suitable for use in distributed power systems, battery-powered equipment, and other applications where efficient step-down conversion and compact design are essential.
Equivalent
1. LM2596 - A popular 3A step-down voltage regulator.
2. MP1584 - A compact 3A step-down regulator by Monolithic Power Systems.
3. L5973D - A 2A step-down switching regulator from STMicroelectronics.
4. LM2675 - A step-down regulator from Texas Instruments.
5. NCP1014 - A switching regulator from ON Semiconductor.
These are similar in function, but specific requirements like input/output voltage, current, and efficiency should be considered.
Features
1. Input Voltage Range: It supports a wide input voltage range from 3.5V to 28V, making it versatile for various applications.
2. Output Current: The device can deliver up to 2A of continuous output current, suitable for moderate power requirements.
3. Efficiency: It is designed for high efficiency, typically above 90%, which reduces heat dissipation and improves performance.
4. Switching Frequency: The TPS54232DR operates at a 1 MHz fixed frequency, allowing for small external components and compact design.
5. Soft-Start: It includes a fixed internal soft-start time to prevent inrush current during startup.
6. Protection Features: The device offers various protection mechanisms, including overcurrent protection, thermal shutdown, and undervoltage lockout.
7. Thermal Performance: The DR package provides good thermal performance, facilitating heat dissipation.
8. Compensation: The internal loop compensation simplifies the design and ensures stability across a wide range of operating conditions.
These features make the TPS54232DR suitable for applications like consumer electronics, industrial power systems, and telecommunications.
Pinout
Here is a brief overview of the pin functions:
1. VIN (Pin 1): Input voltage supply. Connect to the power source.
2. GND (Pin 2): Ground. Common ground for the input and output power and is the thermal pad for heat dissipation.
3. BOOT (Pin 3): Bootstrap capacitor connection. Connect a capacitor between this pin and the SW pin to drive the gate of the high-side MOSFET.
4. SW (Pin 4): Switch node. Connect to the inductor and bootstrap capacitor.
5. RT/CLK (Pin 5): Frequency set and synchronization. A resistor connected to this pin sets the switching frequency.
6. EN (Pin 6): Enable pin. A high level enables the device, while a low level disables it.
7. COMP (Pin 7): Compensation for the control loop. Connect compensation network to stabilize and optimize the control loop.
8. VSENSE (Pin 8): Feedback input. Connect to the output voltage divider to set the output voltage.
This concise summary provides the pin functions for a TPS54232DR device.
Manufacturer
Application
1. Consumer Electronics: Power management in devices like set-top boxes, digital TVs, and gaming consoles.
2. Industrial Equipment: Powering control systems, sensors, and communication modules.
3. Automotive: Used in infotainment systems and various electronic control units (ECUs).
4. Telecommunications: Powering networking equipment like routers and switches.
5. Computing: Power supply for motherboards, graphic cards, and peripheral components.
Its high efficiency, compact size, and ability to supply up to 2A make it ideal for space-constrained and battery-operated applications.