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BL1117-33CX

Name: BL1117-33CX
Rating: 4.7 (12 reviews)

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資料表 BL1117-33CX DataSheet
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規格

Manufacturer	BL(Shanghai Belling)
Package	SOT-223
Operating Temperature	-40℃~+85℃
Voltage - Supply	12V
Output Type	Fixed
Number of Outputs	1
Output Current	1A
Voltage Dropout	1.5V@(1A)
Power Supply Rejection Ratio (PSRR)	60dB@(120Hz)
Features	Overcurrent Protection
Output Voltage	3.3V
Output Configuration	Positive electrode

概述

Description

BL1117-33CX is a low-dropout (LDO) voltage regulator designed to provide a stable output voltage of 3.3V with a maximum output current of 1A. It is commonly used in various electronic applications where a reliable power supply is critical, such as in microcontrollers, sensors, and communication devices.
Key features include low dropout voltage, which allows for efficient operation even when the input voltage is close to the output voltage, and a wide input voltage range (typically up to 15V). The device offers protection features such as thermal shutdown and current limiting, ensuring safe operation under various conditions.
The BL1117-33CX is packaged in a compact TO-220 or SOT-223 configuration, making it suitable for space-constrained applications. Its ease of use and robust performance make it a popular choice among engineers for both prototyping and production designs.

Features

The BL1117-33CX is a low dropout (LDO) voltage regulator designed to provide a stable 3.3V output. Key features include:
1. Output Voltage: Fixed 3.3V with a typical dropout voltage of 1.1V at 800mA.
2. Current Output: Supports up to 800mA of load current.
3. Low Noise: Designed for low noise and ripple, making it suitable for sensitive applications.
4. Thermal Protection: Integrated thermal shutdown feature to prevent damage from overheating.
5. Short-Circuit Protection: Protects the device and the circuit in case of a short.
6. Wide Input Voltage Range: Accepts input voltages from 4.5V to 15V.
7. Easy to Use: Requires minimal external components, facilitating straightforward integration into designs.
8. Package Options: Available in various packages, including TO-220 and SOT-223.
This makes the BL1117-33CX ideal for powering microcontrollers, sensors, and other low-power devices in various applications, including automotive and industrial systems.

Package

The BL1117-33CX is typically available in a SOT-223 package type. This package is a surface-mount type, designed for efficient heat dissipation and compact layouts in electronic circuits.

Pinout

The BL1117-33CX is a voltage regulator with a pin count of 3. Its primary function is to provide a stable output voltage of 3.3V from a higher input voltage. The pin configuration is as follows:
1. Input (Vin): This pin receives the input voltage, which should be higher than the output voltage (typically up to 15V).
2. Output (Vout): This pin delivers the regulated output voltage of 3.3V.
3. Ground (GND): This pin is connected to the ground reference of the circuit.
The device is designed for low dropout voltage, making it suitable for applications where space and power efficiency are important. It's commonly used in power supply applications for microcontrollers, sensors, and other electronic components.

Manufacturer

The BL1117-33CX is manufactured by Bel Power Solutions, a subsidiary of Bel Fuse Inc. Bel Power Solutions specializes in designing and manufacturing power management and conversion products, including voltage regulators, power supplies, and other related components. The company serves various industries such as telecommunications, data networking, industrial, and medical sectors. Bel Power Solutions is known for its high-quality, reliable power solutions, focusing on efficiency and innovation.

Application

The BL1117-33CX is a low-dropout (LDO) voltage regulator primarily used in applications requiring stable output voltages. Common areas include power management for microcontrollers, digital circuits, and RF applications. It's suitable for consumer electronics, battery-powered devices, and automotive systems, where efficient voltage regulation is essential. Its compact size and efficiency also make it ideal for portable and space-constrained applications.

Equivalent

Equivalent products to the BL1117-33CX include the LM1117-3.3, LD1117-3.3, and MIC5219-3.3. These are all low dropout linear voltage regulators providing a 3.3V output with similar specifications in terms of current output and dropout voltage. Always check the datasheets for specific requirements and pin configurations to ensure compatibility.