LM337IMP
Standard Regulator Neg -1.2V to -37V 1.5A 4-Pin(3+Tab) SOT-223 T/RLM337IMP
Standard Regulator Neg -1.2V to -37V 1.5A 4-Pin(3+Tab) SOT-223 T/R
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製造商零件號 # : LM337IMP
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包裝/封裝: SOT223-4
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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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LM337IMP 數據表
價格 (USD)
數量 | 單價 | 總價 |
---|---|---|
1 | $2.029 | $2.03 |
200 | $0.785 | $157.00 |
500 | $0.759 | $379.50 |
1000 | $0.745 | $745.00 |
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
The LM337IMP is a versatile voltage regulator that offers precise and adjustable negative voltage output capabilities for a variety of electronic applications. With a maximum output current of 1.5A, this three-terminal device allows for voltage adjustment within a wide range of -1.2V to -37V. Its internal current limiting and thermal shutdown protection features ensure operational safety and reliability, protecting it from potential damage due to overloads or excessive heat generation. The TO-220 package design promotes efficient heat dissipation, enhancing the device's overall performance and longevity
![LM337IMP LM337IMP](/files/uploads/product/b/692d9158-5738-4a02-0d09-08dbbf1058de.webp)
主要特徵
- The LM337IMP features thermal overload protection and short-circuit protection.
- The maximum output current is 5A
- Output voltage capability is -37V
- The device comes in an SOT-223 package
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) | -4.2 | Vin (min) (V) | -40 |
Vout (max) (V) | -1.2 | Vout (min) (V) | -37 |
Noise (µVrms) | 38 | Iq (typ) (mA) | 0.065 |
Thermal resistance θJA (°C/W) | 23 | Rating | Catalog |
Load capacitance (min) (µF) | 1 | Regulated outputs (#) | 1 |
Accuracy (%) | 2.4 | PSRR at 100 KHz (dB) | 35 |
Dropout voltage (Vdo) (typ) (mV) | 2400 | Operating temperature range (°C) | -40 to 125, 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 LM337IMP?
The LM337IMP is a negative voltage regulator IC manufactured by Texas Instruments. It is designed to provide a regulated negative output voltage, making it suitable for applications requiring a negative power supply, such as dual power supply systems, analog circuits, and audio amplifiers.
How Does LM337IMP Work?
The LM337IMP operates as a negative voltage regulator, providing a stable and regulated negative output voltage. The IC compares the actual output voltage to a reference voltage and adjusts the current flowing through the regulator to maintain a constant output voltage regardless of load variations. It helps ensure a reliable and steady negative supply voltage for connected components.
How Many Pins does LM337IMP have and What are the Functions of the Pinout Configuration?
The LM337IMP is housed in a 3-pin SOT-223 package. The pinout configuration includes:
- Input (VIN): Input voltage pin. It is the unregulated input voltage that needs to be regulated to a negative output.
- Output (VOUT): Regulated negative output voltage pin.
- Adjust (ADJ): Adjustment pin for setting the output voltage or connecting a bypass capacitor for stability.
What are the Pros and Cons of LM337IMP?
Pros:
- Provides Negative Voltage: Ideal for applications requiring a negative power supply.
- Regulated Output: Maintains a stable and constant negative output voltage.
- Simple Design: Easy to use with minimal external components required for operation.
- Thermal Shutdown Protection: Built-in thermal shutdown feature protects the IC from overheating.
- Cost-Effective: Offers a cost-effective solution for generating negative voltage rails.
Cons:
- Heat Dissipation: May require a heat sink for high power dissipation applications to prevent overheating.
- Dropout Voltage: Has a certain dropout voltage that needs to be considered for the input voltage selection.
- Load Regulation: Performance may vary based on the load variations and current requirements.
Are There Any Equivalents/Alternatives to LM337IMP for Recommendation?
- Alternatives to the LM337IMP include the LM7905 from Texas Instruments and the LT1963A from Analog Devices as negative voltage regulators.
- The LM337T from Texas Instruments is another variant of the LM337 series that comes in a TO-220 package.
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