LM2937IMP-12/NOPB
LDO Regulator Pos 12V 0.5A 4-Pin(3+Tab) SOT-223 T/R
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製造商零件號 # : LM2937IMP-12/NOPB
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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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LM2937IMP-12/NOPB 數據表
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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 LM2937 is particularly well-suited for automotive applications, offering protection against reverse battery connections, two-battery jumps, and load dump transients up to 60 V/−50 V. Additionally, this regulator incorporates essential features such as short circuit and thermal shutdown protection, ensuring the safety of both the device itself and the connected load circuitry
主要特徵
- Robust EMI Filter and Noise Suppression
- Effective Screening Against Electromagnetic Interference
- Simplified Compliance with Regulatory Requirements
- Increased System Reliability and Integrity
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 | Fixed Output | Iout (max) (A) | 0.5 |
Vin (max) (V) | 26 | Vin (min) (V) | 6 |
Vout (max) (V) | 15 | Vout (min) (V) | 5 |
Fixed output options (V) | 2.5, 3.3, 5, 8, 10, 12, 15 | Noise (µVrms) | 150 |
Iq (typ) (mA) | 2 | Thermal resistance θJA (°C/W) | 42 |
Rating | Catalog | Load capacitance (min) (µF) | 10 |
Regulated outputs (#) | 1 | Accuracy (%) | 5 |
PSRR at 100 KHz (dB) | 57 | Dropout voltage (Vdo) (typ) (mV) | 500 |
Operating temperature range (°C) | -40 to 125, -40 to 85 |
常見問題解答
What is LM2937IMP-12/NOPB?
The LM2937IMP-12/NOPB is a low dropout voltage regulator manufactured by Texas Instruments. It is designed to provide a stable and regulated output voltage with minimal dropout, making it suitable for applications requiring a reliable power supply, such as portable electronic devices, automotive systems, and industrial control systems.
How Does LM2937IMP-12/NOPB Work?
The LM2937IMP-12/NOPB works by regulating an input voltage to a specified output voltage with low dropout voltage. It uses a PNP pass transistor and error amplifier to maintain a stable output voltage even when the input voltage is slightly above the desired output voltage. This regulator is designed to operate with low quiescent current, making it suitable for battery-powered applications.
How Many Pins does LM2937IMP-12/NOPB have and What are the Functions of the Pinout Configuration?
The LM2937IMP-12/NOPB is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- Vin: Input voltage pin.
- Vout: Regulated output voltage pin.
- GND: Ground pin.
- Adjust: Adjustment pin for setting the output voltage.
- Enable: Enable pin for turning the regulator on or off.
What are the Pros and Cons of LM2937IMP-12/NOPB?
Pros:
- Low Dropout Voltage: Maintains regulation even with small voltage differentials between input and output.
- Low Quiescent Current: Operates with minimal standby current, suitable for battery-operated devices.
- Thermal Shutdown and Current Limiting: Built-in protection features enhance reliability in various operating conditions.
- Wide Operating Temperature Range: Can operate in extended temperature environments.
- Compact Package: The 8-pin SOIC package is space-efficient, suitable for compact designs.
Cons:
- External Capacitors: Requires external capacitors for stable operation, which may add to the overall board space and cost.
- Voltage Drop: Some voltage is lost across the regulator, which can affect power efficiency in low voltage applications.
Are There Any Equivalents/Alternatives to LM2937IMP-12/NOPB for Recommendation?
- The LDO regulators similar to the LM2937IMP-12/NOPB include the LM2940 from Texas Instruments and the LT1763 from Analog Devices.
- Alternatives to the LM2937IMP-12/NOPB include the MIC2940A from Microchip Technology and the TPS799 from Texas Instruments.
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