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LD2981CM33TR
+物料清單IC REG LINEAR 3.3V 100MA SOT23-5
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製造商意法半導體
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製造商部分 #LD2981CM33TR
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有存貨9640
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正品保證
規格
| 屬性 | 價值 |
| PartStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 16V |
| Voltage-Output(Min/Fixed) | 3.3V |
| VoltageDropout(Max) | 0.375V @ 100mA |
| Current-Output | 100mA |
| Current-Quiescent(Iq) | 150 µA |
| Current-Supply(Max) | 2.6 mA |
| PSRR | 63dB (1kHz) |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | SC-74A, SOT-753 |
| SupplierDevicePackage | SOT-23-5 |
| BaseProductNumber | LD2981 |
概述
Description
Key features of the LD2981CM33TR include a low dropout voltage, which means it can maintain the output voltage even when the input voltage is only slightly higher than the output. This feature is particularly useful in battery-powered devices where efficiency and power conservation are critical. The regulator also offers excellent line and load regulation, along with protection features like current limiting and thermal shutdown to prevent damage from overload or overheating conditions. These characteristics make the LD2981CM33TR suitable for use in portable electronics, communication devices, and other applications requiring reliable voltage regulation.
Equivalent
1. MIC5205-3.3YM: A similar 3.3V LDO regulator by Microchip Technology.
2. LP2985AIM5-3.3: Texas Instruments' offering with similar specifications.
3. NCP1117ST33T3G: A 3.3V LDO regulator from ON Semiconductor.
4. TLV1117-33CDCYR: Another Texas Instruments 3.3V LDO option.
Always check the specific parameters like output current, dropout voltage, and package type for compatibility.
Features
1. Output Voltage: Provides a fixed output voltage of 3.3V.
2. Input Voltage: Capable of operating with an input voltage range of up to 16V.
3. Dropout Voltage: Low dropout voltage, typically around 0.2V at a current of 100 mA.
4. Output Current: Can deliver a maximum output current of 100 mA.
5. Quiescent Current: Offers low quiescent current, making it energy-efficient and suitable for battery-powered applications.
6. Thermal Protection: Includes overtemperature protection to prevent damage from overheating.
7. Short-Circuit Protection: Features built-in short-circuit protection for enhanced reliability.
8. Package: Available in a SOT-223 package, which is compact and suitable for space-constrained designs.
9. Applications: Ideal for use in consumer electronics, battery-powered devices, and other applications where low noise and power efficiency are critical.
10. Regulation: Provides good line and load regulation.
These features make the LD2981CM33TR a reliable choice for powering circuits requiring a stable 3.3V supply with low power loss.
Pinout
1. Pin 1 (GND): Ground pin. Connect this to the ground of the circuit.
2. Pin 2 (VIN): Input voltage pin. Connect this to the source of the voltage you intend to regulate.
3. Pin 3 (VOUT): Output voltage pin. This is where the regulated voltage is output.
4. Tab: Often connected to the ground, this serves as a heat dissipation path and sometimes used as an additional ground connection.
The LD2981CM33TR provides a fixed 3.3V output voltage and typically supports a maximum output current of around 100 mA. It is designed for low power applications where space and power efficiency are critical.
Manufacturer
Application
1. Consumer Electronics: Used in devices like smartphones and tablets for efficient power management.
2. Telecommunications: Supports stable power in communication systems and network equipment.
3. Industrial Systems: Powers sensors, controllers, and other components requiring precise voltage regulation.
4. Automotive Electronics: Provides reliable power for infotainment systems and control modules.
5. IoT Devices: Ensures consistent power in low-power IoT applications.
Its low-dropout characteristics, low quiescent current, and high output stability make it suitable for battery-powered and portable applications.