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LM317KCS
1.25V to 37V adjustable output
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製造商零件號 # : LM317KCS
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包裝/封裝: TO-220 (KCS)-3
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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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LM317KCS 數據表
價格 (USD)
| 數量 | 單價 | 總價 |
|---|---|---|
| 1 | $0.626 | $0.63 |
| 10 | $0.528 | $5.28 |
| 30 | $0.478 | $14.34 |
| 100 | $0.408 | $40.80 |
| 500 | $0.379 | $189.50 |
| 1000 | $0.364 | $364.00 |
這些價格會受到市場波動的影響，需要提交報價才能取得最新價格。
詳細說明
One of the key features of the LM317KCS is its built-in short-circuit current limiting and thermal shutdown protection mechanisms, which help to safeguard the device against potential damage caused by overcurrent or excessive heat. This ensures the longevity and durability of the regulator, making it a reliable choice for demanding environments
主要特徵
- The LM317KCS boasts:
- High current handling up to 1.5A
- Adjustable output voltage from 12V to 37V
- Fully protected against overheating, overcurrent
- and shorts with thermal and overload protection.
應用
- Current limiting application
- Temperature regulation in circuits
- Amplifier power supply
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) | 1.5 |
| Vin (max) (V) | 40 | Vin (min) (V) | 3 |
| Vout (max) (V) | 37 | Vout (min) (V) | 1.25 |
| Noise (µVrms) | 38 | Iq (typ) (mA) | 5 |
| Thermal resistance θJA (°C/W) | 24 | Rating | Catalog |
| Load capacitance (min) (µF) | 0 | Regulated outputs (#) | 1 |
| Accuracy (%) | 5 | PSRR at 100 KHz (dB) | 38 |
| Dropout voltage (Vdo) (typ) (mV) | 2000 | Operating temperature range (°C) | 0 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 LM317KCS?
The LM317KCS is a three-terminal adjustable positive voltage regulator integrated circuit (IC) manufactured by Texas Instruments. It is designed to provide a constant output voltage with adjustable values using external resistors, making it suitable for various power supply applications.
How Does LM317KCS Work?
The LM317KCS operates by adjusting the resistance between the ADJ (adjust) pin and the output to regulate the voltage output. By connecting external resistors, the output voltage can be set to a specific value within its specified range. The IC maintains the output voltage at the adjusted level even with changes in input voltage or load current.
How Many Pins does LM317KCS have and What are the Functions of the Pinout Configuration?
The LM317KCS is typically housed in a TO-220 package with three pins:
- INPUT: Input voltage pin.
- ADJ: Adjustment pin to set the output voltage.
- OUTPUT: Regulated output voltage pin.
What are the Pros and Cons of LM317KCS?
Pros:
- Adjustable Output: Allows for flexibility in setting the output voltage as needed.
- Short Circuit Protection: Built-in protection feature helps prevent damage in case of a short circuit.
- Thermal Regulation: Includes thermal overload protection to ensure safe operation.
- Wide Operating Range: Can handle input voltages significantly higher than the output voltage.
Cons:
- Heat Dissipation: May require a heat sink for high current or high voltage applications.
- Power Dissipation: In high voltage drops, the IC may dissipate relatively high power as heat.
- Noisy Output: Some applications may require additional filtering for noise-sensitive systems.
Are There Any Equivalents/Alternatives to LM317KCS for Recommendation?
Some equivalents or alternatives to the LM317KCS voltage regulator include:
- LM338 from Texas Instruments, which offers higher current capability.
- L78xx series from STMicroelectronics, providing fixed output voltage options.
- LT1083 from Linear Technology, featuring lower dropout voltage and high current output.
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