LD1117S33C

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LD1117S33C

LDO Voltage Regulators

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Description

The LD1117S33C is a low-dropout (LDO) voltage regulator designed to provide a stable output voltage of 3.3V with a maximum output current of 800mA. It operates efficiently with a dropout voltage of around 1.2V at this current level, making it suitable for applications where the input voltage is only slightly higher than the desired output.
The device features thermal shutdown and current limiting for enhanced reliability and protection. It is typically used in power management applications for microcontrollers, sensors, and other digital circuits that require a stable supply voltage.
The LD1117S33C is available in various packages, including TO-220 and SOT-223, accommodating different thermal and space requirements. Its low noise and high power supply rejection ratio (PSRR) make it ideal for sensitive electronic applications.
Overall, the LD1117S33C is a versatile choice for designers needing an efficient and reliable 3.3V LDO regulator.

Features

The LD1117S33C is a low dropout (LDO) voltage regulator that provides a stable output of 3.3V. Key features include:
1. Input Voltage Range: Operates with input voltages from 4.75V to 15V.
2. Output Current: Capable of delivering up to 800mA of output current.
3. Low Dropout Voltage: Typically around 1.2V at full load, allowing for efficient operation even with lower input voltages.
4. Thermal Protection: Includes built-in thermal shutdown to prevent damage due to overheating.
5. Short Circuit Protection: Offers current limiting to protect against short circuits.
6. Package Type: Available in TO-220, SOT-223, and other surface mount options for flexibility in design.
7. Low Noise: Provides a stable output with minimal noise, making it suitable for sensitive applications.
8. Applications: Commonly used in microcontroller power supplies, RF applications, and other electronic devices requiring stable voltage.
Overall, the LD1117S33C is ideal for low-power applications needing a reliable and efficient voltage regulation solution.

Package

The LD1117S33C is typically packaged in a TO-220 form factor. This package type features a heat sink for improved thermal management and is commonly used for voltage regulation applications.

Pinout

The LD1117S33C is a low-dropout (LDO) voltage regulator that typically comes in a TO-220 package with a pin count of 3. The pin functions are as follows:
1. Input (Vin): This pin receives the input voltage, which should be higher than the desired output voltage (in this case, 3.3V) by at least the dropout voltage.
2. Output (Vout): This pin provides the regulated output voltage, which is fixed at 3.3V for the LD1117S33C.
3. Ground (GND): This pin is connected to the ground reference of the circuit.
The LD1117 series is known for its low dropout voltage and can provide up to 800 mA of output current, making it suitable for various applications such as powering microcontrollers or other low-power devices.

Manufacturer

The LD1117S33C is manufactured by several companies, but it is commonly associated with STMicroelectronics, a prominent semiconductor manufacturer. STMicroelectronics is a global company that specializes in designing and producing a wide range of semiconductor products, including microcontrollers, sensors, and power management solutions. Founded in 1987 and headquartered in Geneva, Switzerland, STMicroelectronics operates in various sectors such as automotive, industrial, and consumer electronics. It focuses on innovation and sustainability, providing advanced technologies that meet the needs of a diverse array of applications.

Application

The LD1117S33C is a low-dropout (LDO) voltage regulator primarily used in applications requiring a stable 3.3V output. It is suitable for powering microcontrollers, sensors, and communication devices in embedded systems, industrial automation, and consumer electronics. Additionally, it is used in battery-powered devices due to its efficiency and compact size, providing reliable voltage regulation in various electronic circuits.

Equivalent

The LD1117S33C is a low-dropout (LDO) voltage regulator with a fixed output of 3.3V. Equivalent products include the LM1117-3.3, MCP1825S-3302E, AMS1117-3.3, and MIC5205-3.3. Ensure to check specifications like output current, dropout voltage, and thermal performance for compatibility.

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