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UA78M33CDCY
+BOMIC REG LIN 3.3V 500MA SOT-223-4
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제조업체텍사스 인스트루먼트(주)
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제조업체 부품 #UA78M33CDCY
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재고9929
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사양
| 속성 | 가치 |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 25V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage Dropout (Max) | 2V @ 350mA |
| Current - Output | 500mA |
| PSRR | 80dB (120Hz) |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | 0°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-4 |
| Base Product Number | UA78M33 |
개요
Description
Key features include thermal overload protection, short-circuit protection, and a wide input voltage range (up to 30V). The UA78M33CDCY typically comes in a TO-220 package, allowing for easy mounting and heat dissipation. It is commonly used in microcontroller applications, sensor circuits, and other electronic devices requiring a reliable 3.3V power supply.
Overall, the UA78M33CDCY is valued for its ease of use, robustness, and ability to deliver consistent performance in various electronic designs.
Equivalent
1. LM1117-3.3
2. LM317 (adjustable, requires resistors for 3.3V)
3. MCP1700-3302E
4. AMS1117-3.3
5. LD1117-3.3
Always check specifications to ensure compatibility for your application.
Features
- Output Current: Capable of delivering up to 500 mA of output current.
- Input Voltage: Accepts a wide input voltage range from 7V to 25V.
- Low Dropout Voltage: Offers a low dropout voltage, typically around 1.2V, ensuring efficiency even when the input voltage is close to the output voltage.
- Thermal Protection: Equipped with thermal shutdown to prevent damage under overheating conditions.
- Short-Circuit Protection: Incorporates short-circuit protection, safeguarding the device from damage due to excessive current.
- Package Type: Available in a TO-220 package, facilitating easy mounting and heat dissipation.
- Ripple Rejection: Provides good ripple rejection, ensuring a clean output voltage.
Ideal for powering microcontrollers, sensors, and other low-power devices, the UA78M33CDCY is reliable and easy to integrate into various electronic circuits.
Pinout
The functions of the pins are as follows:
1. Input (Pin 1): This pin receives the input voltage, which must be higher than the desired output voltage (3.3V) and within the specified input range.
2. Output (Pin 2): This pin delivers the regulated output voltage of 3.3V to the load.
3. Ground (Pin 3): This pin is connected to the ground of the circuit, providing a common return path for current.
The UA78M33CDCY also features built-in thermal shutdown and current limiting for protection against overload conditions.
Manufacturer
The UA78M33CDCY is a voltage regulator specifically designed to provide a stable 3.3V output with a maximum output current of 500 mA. It belongs to the 78M series of linear voltage regulators, which are widely used for powering low-power electronic circuits. Texas Instruments has a strong reputation in the semiconductor market for innovation and quality, maintaining a significant presence in both the consumer and industrial electronics sectors.
Application
1. Power Supply Circuits: To supply low voltage devices and microcontrollers.
2. Embedded Systems: Ensuring consistent voltage for sensors and actuators.
3. Consumer Electronics: Powering devices like routers, cameras, and portable gadgets.
4. Industrial Equipment: Offering reliable voltage regulation in automation systems.
5. Prototyping: Used in development boards and prototype circuits for testing and validation.
Its thermal overload protection and easy integration make it suitable for diverse electronic projects.