LM2990S-12/NOPB
LDO Voltage Regulators NEG LDO REG
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製造商零件號 # : LM2990S-12/NOPB
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包裝/封裝: TO263-3
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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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LM2990S-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
For engineers and hobbyists alike, the LM2990S-12/NOPB is a versatile and indispensable component for voltage regulation. Its robust construction, wide input voltage range, and high output current capability make it a valuable asset in any electronics toolkit. Whether you are designing a new circuit or upgrading an existing one, the LM2990S-12/NOPB offers the performance and reliability you need to succeed. Invest in the LM2990S-12/NOPB and experience the benefits of precision power regulation in your projects
主要特徵
- The LM2990S-12/NOPB has a maximum input voltage of 40V.
- Its output voltage is 12V and output current is 1A.
應用
- Power Management
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) | 1 |
Vin (max) (V) | -6 | Vin (min) (V) | -26 |
Vout (max) (V) | -5 | Vout (min) (V) | -15 |
Fixed output options (V) | -15, -12, -5.2, -5 | Noise (µVrms) | 250 |
Iq (typ) (mA) | 1 | Thermal resistance θJA (°C/W) | 23 |
Rating | Catalog | Load capacitance (min) (µF) | 10 |
Regulated outputs (#) | 1 | Accuracy (%) | 4.9 |
PSRR at 100 KHz (dB) | 23 | Dropout voltage (Vdo) (typ) (mV) | 600 |
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 LM2990S-12/NOPB?
The LM2990S-12/NOPB is a 12V low dropout voltage regulator designed by Texas Instruments. It is ideal for applications requiring a stable and regulated 12V power supply, such as automotive electronics, industrial control systems, and battery-powered devices.
How Does LM2990S-12/NOPB Work?
The LM2990S-12/NOPB works by regulating an input voltage (typically higher than 12V) to a stable 12V output while minimizing dropout voltage. It utilizes a precision bandgap reference and a PNP pass transistor to achieve low dropout and high output accuracy. The regulator is designed to handle a wide range of input voltages and provide a stable 12V output.
How Many Pins does LM2990S-12/NOPB have and What are the Functions of the Pinout Configuration?
The LM2990S-12/NOPB is housed in a 3-pin TO-263 package. The pinout configuration includes:
- Input: Input voltage pin.
- Output: Regulated 12V output pin.
- Ground: Ground pin.
What are the Pros and Cons of LM2990S-12/NOPB?
Pros:
- Low Dropout Voltage: Allows regulation of the output voltage even when the input voltage is only slightly higher than the output voltage.
- High Output Accuracy: Provides a stable and accurate 12V output over various load conditions.
- Thermal Shutdown Protection: Includes built-in thermal shutdown to prevent the device from overheating.
- Simple Three-Pin Configuration: Easy to use and integrate into designs with minimal external components.
- Wide Input Voltage Range: Suitable for applications with varying input voltage levels.
Cons:
- Heat Dissipation: May require thermal considerations, especially when dropping a significant amount of voltage.
- Power Dissipation: The device may dissipate significant power under high load conditions, requiring proper heat sinking.
- No Enable Pin: Lacks an enable pin for external control of the regulator's operation.
Are There Any Equivalents/Alternatives to LM2990S-12/NOPB for Recommendation?
- The LM2937-12 from Texas Instruments is an alternative low dropout 12V voltage regulator.
- Equivalent parts to the LM2990S-12/NOPB include the LT1086 from Analog Devices and the MCP1702 from Microchip Technology.
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