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LP38798SD-ADJ/NOPB
Adjustable LDO Regulator
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製造商零件號 # : LP38798SD-ADJ/NOPB
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包裝/封裝: WSON (DNT)-12
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製造商: Texas Instruments
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產品分類 : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
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LP38798SD-ADJ/NOPB 數據表
目前的價格方案正在編制中。請聯絡我們的客戶服務團隊獲取最新的價格資訊。感謝您的理解和支援!
詳細說明
The LP38798SD-ADJ/NOPB is a top-of-the-line low-dropout voltage regulator that is perfect for demanding applications. With its adjustable output voltage range from 0.8V to 5.5V and a maximum output current of 800mA, it provides the flexibility and power needed in various electronic systems. Its high power supply rejection ratio (PSRR) of 58dB at 1kHz ensures stable performance even in noisy environments, while the low dropout voltage of 210mV at 800mA load current further solidifies its reliability. The thermal shutdown feature adds an extra layer of protection, making it a trustworthy component for critical operations
主要特徵
- Soft-start feature, reduced inrush current
- Overvoltage protection, thermal shutdown
- Wide operating range: -40°C to 125°C
應用
- Customizable voltage regulator option
- Versatile for various applications
- Compact design with high performance
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Output options | Adjustable Output | Iout (max) (A) | 0.8 |
| Vin (max) (V) | 20 | Vin (min) (V) | 3 |
| Vout (max) (V) | 19.8 | Vout (min) (V) | 1.2 |
| Noise (µVrms) | 5 | Iq (typ) (mA) | 1.4 |
| Thermal resistance θJA (°C/W) | 35 | Rating | Catalog |
| Load capacitance (min) (µF) | 1 | Regulated outputs (#) | 1 |
| Features | Enable | Accuracy (%) | 2 |
| PSRR at 100 KHz (dB) | 65 | Dropout voltage (Vdo) (typ) (mV) | 200 |
| Operating temperature range (°C) | -40 to 125 |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is LP38798SD-ADJ/NOPB?
The LP38798SD-ADJ/NOPB is an adjustable output voltage, ultra-low dropout linear regulator manufactured by Texas Instruments. It is designed to provide a stable and accurate voltage output for various applications, including powering microcontrollers, FPGAs, and other sensitive electronic components.
How Does LP38798SD-ADJ/NOPB Work?
The LP38798SD-ADJ/NOPB operates as a linear regulator that accepts an input voltage and provides a regulated output voltage. It utilizes a feedback mechanism to adjust the internal pass device to maintain a constant output voltage regardless of changes in the input voltage or load conditions. This ensures a stable power supply for the connected components.
How Many Pins does LP38798SD-ADJ/NOPB have and What are the Functions of the Pinout Configuration?
The LP38798SD-ADJ/NOPB comes in a 12-pin WSON (Wide Small Outline No-Lead) package. The pinout configuration includes:
- IN: Input voltage pin.
- EN: Enable pin for turning the regulator on/off.
- VOS: Output voltage sense pin.
- ADJ: Adjust pin for setting the output voltage.
- NC (No Connect): Pins that are not connected.
- GND: Ground pins.
- OUT: Regulated output voltage pin.
What are the Pros and Cons of LP38798SD-ADJ/NOPB?
Pros:
- Ultra-Low Dropout: Works with very low voltage differentials, suitable for low-power applications.
- Adjustable Output: Offers flexibility in setting the output voltage to meet specific requirements.
- Low Noise: Provides a clean and stable output voltage for sensitive circuits.
- Thermal Protection: Includes built-in thermal shutdown protection for device safety.
- Small Package: The WSON package is compact, saving board space in designs.
Cons:
- Cost: Linear regulators may have higher power dissipation compared to switching regulators.
- Efficiency: May not be as efficient as switching regulators, especially at high input-output differentials.
- Heat Dissipation: Generates heat due to the linear regulation process, which may require heat sinking in some applications.
Are There Any Equivalents/Alternatives to LP38798SD-ADJ/NOPB for Recommendation?
- The LM2937 from Texas Instruments is a similar adjustable linear regulator with low dropout voltage.
- Alternatives to the LP38798SD-ADJ/NOPB include the LT3080 from Linear Technology and the MAX1693 from Maxim Integrated.
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