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LM2991T
+BOMIC REG LIN NEG ADJ 1A TO220-5
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #LM2991T
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Part Status | Obsolete |
| Base Product Number | LM2991 |
| Output Configuration | Negative |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | -26V |
| Voltage - Output (Min / Fixed) | -3V |
| Voltage - Output (Max) | -24V |
| Voltage Dropout (Max) | 1V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 0.7 mA |
| Current - Supply (Max) | 5 mA |
| PSRR | 60dB (1kHz) |
| Control Features | Enable |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Through Hole |
| Package / Case | TO-220-5 |
| Supplier Device Package | TO-220-5 |
| Packaging | Tube |
Tổng quan
Description
Key features include a wide operating temperature range, typically from -40°C to +125°C, and low dynamic impedance, ensuring consistent performance under varying load conditions. The LM2991T can be used in applications such as voltage regulation, sensor calibration, and data acquisition systems.
The package type for LM2991T is typically in a TO-220 or similar form factor, which aids in thermal management. Its design allows for easy integration into existing circuits, providing reliable performance and reducing the need for external components.
Overall, the LM2991T is an essential component for engineers seeking precise voltage references in their designs, enhancing the accuracy and stability of electronic systems.
Equivalent
Features
1. Voltage Reference: Provides a stable output voltage, typically 1.2V.
2. Temperature Coefficient: Low drift of 10 ppm/°C ensures stable performance across varying temperatures.
3. Low Output Impedance: Maintains voltage stability under load changes.
4. Wide Supply Voltage Range: Operates from a wide input voltage range, enhancing versatility.
5. High Accuracy: Offers excellent initial accuracy, making it suitable for precision applications.
6. Compact Package: Available in surface-mount and through-hole packages for easy integration.
7. Low Noise: Minimal output noise contributes to high performance in sensitive applications.
8. Reverse Polarity Protection: Helps prevent damage due to incorrect connections.
9. Short-Circuit Protection: Ensures reliability and safety in the event of an overload.
These features make the LM2991T ideal for use in instrumentation, data acquisition systems, and analog-to-digital converters.
Pinout
Pin Count and Functions:
1. Pin 1 (Input Voltage): Supplies the input voltage.
2. Pin 2 (GND): Ground connection.
3. Pin 3 (Voltage Reference): Provides a stable reference voltage.
4. Pin 4 (Error Amplifier Output): Outputs the error signal for regulation feedback.
5. Pin 5 (Feedback): Connects to the feedback network for voltage regulation.
6. Pin 6 (Control): Controls the operation of the internal circuitry.
7. Pin 7 (Shutdown): Used to enable or disable the device.
8. Pin 8 (Output Voltage): Provides the regulated output voltage.
The LM2991T is designed to maintain a steady output voltage under varying load conditions, making it suitable for reliable power management in automotive electronics.