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LM2941LD/NOPB
LDO Voltage Regulators 1A LDO Adj Reg
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製造商零件號 # : LM2941LD/NOPB
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包裝/封裝: WSON-8
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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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LM2941LD/NOPB 數據表
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詳細說明
The LM2941 positive voltage regulator boasts an impressive set of features that make it an ideal choice for various applications. With a capability to source 1 A of output current, this regulator can handle demanding loads with ease. Additionally, its low dropout voltage of 0.5 V and maximum of 1 V over the entire temperature range ensure stable performance even in harsh environments. Furthermore, the quiescent current reduction circuit minimizes ground pin current when the input-output differential exceeds approximately 3 V, resulting in a mere 30 mA quiescent current with 1 A of output current and an input-output differential of 5 V
主要特徵
- The LM29 has a fixed output voltage
- Low dropout voltage makes it suitable for battery-powered applications
- Thermal shutdown protection feature
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 |
| Vin (max) (V) | 26 | Vin (min) (V) | 6 |
| Vout (max) (V) | 20 | Vout (min) (V) | 5 |
| Noise (µVrms) | 600 | Iq (typ) (mA) | 10 |
| Thermal resistance θJA (°C/W) | 41 | Rating | Catalog |
| Load capacitance (min) (µF) | 22 | Regulated outputs (#) | 1 |
| Features | Enable | Accuracy (%) | 5 |
| PSRR at 100 KHz (dB) | 67 | Dropout voltage (Vdo) (typ) (mV) | 500 |
| 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 LM2941LD/NOPB?
The LM2941LD/NOPB is a low dropout voltage regulator manufactured by Texas Instruments. It is designed to provide a regulated output voltage with minimal voltage dropout, making it ideal for applications that require a stable voltage supply despite variations in input voltage.
How Does LM2941LD/NOPB Work?
The LM2941LD/NOPB regulates the output voltage by comparing the reference voltage to the output voltage and adjusting the current flow through the pass transistor accordingly. It maintains a stable output voltage even when the input voltage approaches the output voltage, hence the term 'low dropout.' The regulator can handle input voltages higher than the output voltage to provide a reliable power supply for various electronic systems.
How Many Pins does LM2941LD/NOPB have and What are the Functions of the Pinout Configuration?
The LM2941LD/NOPB is housed in an 8-lead DDPAK (Dual-In-Line Power Package) package. The pinout configuration includes:
- VIN: Input voltage pin.
- VOUT: Output voltage pin.
- GND: Ground pin.
- ADJ: Adjustable pin for output voltage trimming.
What are the Pros and Cons of LM2941LD/NOPB?
Pros:
- Low Dropout Voltage: Maintains a stable output voltage even with a small voltage difference between input and output.
- High Output Current: Capable of providing relatively high output currents for powering various loads.
- Thermal Protection: Includes thermal shutdown and current limit features for protection against overloading.
- Short Circuit Protection: Protects the regulator in case of a short circuit at the output.
Cons:
- Heat Dissipation: May require additional heat sinking depending on the input-output voltage differential and load current.
- No Enable Pin: Lacks an enable pin for external on/off control, which may be a drawback in some applications.
Are There Any Equivalents/Alternatives to LM2941LD/NOPB for Recommendation?
- The LM2937 from Texas Instruments is a similar low dropout voltage regulator with adjustable output voltage.
- Alternatives to the LM2941LD/NOPB include the LDO regulators like the LM1117 from Texas Instruments and the LM317 from Texas Instruments.
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