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LD3985M33R
+Lista de MateriaisIC REG LINEAR 3.3V 150MA SOT23-5
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FabricanteSTMicroeletrônica
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Peça do Fabricante #LD3985M33R
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Ficha Técnica LD3985M33R DataSheet
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Pacote SOT23-5
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 6V |
| Voltage-Output(Min/Fixed) | 3.3V |
| VoltageDropout(Max) | 0.1V @ 150mA |
| Current-Output | 150mA |
| Current-Quiescent(Iq) | 150 µA |
| Current-Supply(Max) | 250 µA |
| PSRR | 60dB ~ 50dB (1kHz ~ 10kHz) |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | SC-74A, SOT-753 |
Visão Geral
Description
The LD3985M33R is a low-dropout (LDO) linear voltage regulator designed for electronic applications requiring a stable and precise output voltage. It is manufactured by STMicroelectronics. This device offers a fixed output voltage of 3.3V with a maximum output current of 150mA, making it suitable for small, power-sensitive applications.
Key features of the LD3985M33R include a low dropout voltage of approximately 60mV at 50mA load, which helps in increasing the efficiency of power delivery. It also has excellent line and load regulation characteristics, ensuring minimal output voltage variations with changes in input voltage or output load.
The LD3985M33R incorporates thermal protection and short-circuit current limiting to safeguard against operating conditions that could cause damage. It comes in a compact SOT-23-5L package, making it ideal for portable and space-constrained applications.
Applications for the LD3985M33R include battery-powered devices, mobile phones, and portable electronics where a stable and efficient power supply is crucial for device performance.
Key features of the LD3985M33R include a low dropout voltage of approximately 60mV at 50mA load, which helps in increasing the efficiency of power delivery. It also has excellent line and load regulation characteristics, ensuring minimal output voltage variations with changes in input voltage or output load.
The LD3985M33R incorporates thermal protection and short-circuit current limiting to safeguard against operating conditions that could cause damage. It comes in a compact SOT-23-5L package, making it ideal for portable and space-constrained applications.
Applications for the LD3985M33R include battery-powered devices, mobile phones, and portable electronics where a stable and efficient power supply is crucial for device performance.
Equivalent
The LD3985M33R is a low-dropout (LDO) voltage regulator with a fixed 3.3V output. Equivalent products include:
1. MIC5205-3.3YM5: A similar LDO regulator with a fixed 3.3V output.
2. TPS79733: A low-dropout regulator with a comparable voltage output.
3. LP2985A-33DBVR: Another LDO regulator with a 3.3V fixed output.
4. ADM7150ARDZ-3.3: An LDO regulator offering a fixed 3.3V.
Always check specifications for slight differences in parameters like output current, dropout voltage, and package type.
1. MIC5205-3.3YM5: A similar LDO regulator with a fixed 3.3V output.
2. TPS79733: A low-dropout regulator with a comparable voltage output.
3. LP2985A-33DBVR: Another LDO regulator with a 3.3V fixed output.
4. ADM7150ARDZ-3.3: An LDO regulator offering a fixed 3.3V.
Always check specifications for slight differences in parameters like output current, dropout voltage, and package type.
Features
The LD3985M33R is a low-dropout (LDO) linear voltage regulator. Here are its key features:
1. Output Voltage: The device provides a fixed output voltage of 3.3V.
2. Low Dropout Voltage: It offers a low dropout voltage, typically around 100mV at a 150mA load, which makes it suitable for battery-powered applications.
3. Output Current: Capable of delivering up to 150mA of output current.
4. Quiescent Current: It has a low quiescent current, typically around 30µA, which helps in extending battery life.
5. Stability: The LD3985M33R is stable with a small ceramic capacitor on the output, enhancing its versatility.
6. Noise Performance: Features low output noise, ideal for sensitive applications.
7. Protection: Includes thermal shutdown and current limit protection for enhanced reliability.
8. Package: Available in a small SOT-23 or similar package, suitable for space-constrained designs.
9. Temperature Range: Operates efficiently over a wide temperature range, typically from -40°C to 125°C.
These features make the LD3985M33R an excellent choice for portable devices and applications requiring efficient power regulation.
1. Output Voltage: The device provides a fixed output voltage of 3.3V.
2. Low Dropout Voltage: It offers a low dropout voltage, typically around 100mV at a 150mA load, which makes it suitable for battery-powered applications.
3. Output Current: Capable of delivering up to 150mA of output current.
4. Quiescent Current: It has a low quiescent current, typically around 30µA, which helps in extending battery life.
5. Stability: The LD3985M33R is stable with a small ceramic capacitor on the output, enhancing its versatility.
6. Noise Performance: Features low output noise, ideal for sensitive applications.
7. Protection: Includes thermal shutdown and current limit protection for enhanced reliability.
8. Package: Available in a small SOT-23 or similar package, suitable for space-constrained designs.
9. Temperature Range: Operates efficiently over a wide temperature range, typically from -40°C to 125°C.
These features make the LD3985M33R an excellent choice for portable devices and applications requiring efficient power regulation.
Pinout
The LD3985M33R is a low-dropout (LDO) linear regulator manufactured by STMicroelectronics. It typically has a 5-pin SOT-23 package. The key functions of the pins are:
1. Input (Vin): Supplies the input voltage to the regulator.
2. Output (Vout): Provides the regulated output voltage, which is fixed at 3.3V for the LD3985M33R variant.
3. Ground (GND): Common ground reference for the input and output.
4. Enable (EN): A logic input that enables or disables the regulator. When pulled high, the regulator is enabled; pulling it low disables the output.
5. Bypass (BYP): Used to connect an external capacitor for noise reduction and to improve power supply rejection ratio (PSRR).
The LD3985M33R is designed for low quiescent current consumption, making it suitable for battery-powered applications. It features high PSRR, low noise, and low dropout voltage, and it can deliver up to 150 mA of output current.
1. Input (Vin): Supplies the input voltage to the regulator.
2. Output (Vout): Provides the regulated output voltage, which is fixed at 3.3V for the LD3985M33R variant.
3. Ground (GND): Common ground reference for the input and output.
4. Enable (EN): A logic input that enables or disables the regulator. When pulled high, the regulator is enabled; pulling it low disables the output.
5. Bypass (BYP): Used to connect an external capacitor for noise reduction and to improve power supply rejection ratio (PSRR).
The LD3985M33R is designed for low quiescent current consumption, making it suitable for battery-powered applications. It features high PSRR, low noise, and low dropout voltage, and it can deliver up to 150 mA of output current.
Manufacturer
The LD3985M33R is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. The company serves various sectors, including automotive, industrial, personal electronics, and communications equipment. STMicroelectronics is known for its innovation and technology solutions, catering to the needs of its diverse clientele.
Application
The LD3985M33R is a low-dropout (LDO) voltage regulator. Its application areas include:
1. Consumer Electronics: Provides stable power supply for devices like smartphones, tablets, and cameras.
2. Industrial Equipment: Ensures reliable power for sensors and control systems.
3. Telecommunications: Powers circuits in networking equipment and communication devices.
4. Automotive Electronics: Supplies regulated voltage for various automotive modules.
5. Portable Devices: Efficient power management for battery-operated gadgets.
6. IoT Devices: Powers low-power sensors and modules in IoT applications.
Its low dropout voltage and low quiescent current make it suitable for battery-powered applications, ensuring efficiency and prolonged battery life.
1. Consumer Electronics: Provides stable power supply for devices like smartphones, tablets, and cameras.
2. Industrial Equipment: Ensures reliable power for sensors and control systems.
3. Telecommunications: Powers circuits in networking equipment and communication devices.
4. Automotive Electronics: Supplies regulated voltage for various automotive modules.
5. Portable Devices: Efficient power management for battery-operated gadgets.
6. IoT Devices: Powers low-power sensors and modules in IoT applications.
Its low dropout voltage and low quiescent current make it suitable for battery-powered applications, ensuring efficiency and prolonged battery life.
Package
The LD3985M33R is a low-dropout linear regulator (LDO) from STMicroelectronics. It comes in a SOT-23-5 package, which is a small surface-mount package with five leads, suitable for compact electronic designs.
