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AMS1117-3.3V

Name: AMS1117-3.3V
Rating: 4.7 (12 reviews)

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Mfr.부분 #AMS1117-3.3V
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데이터시트 AMS1117-3.3V DataSheet
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사양

Manufacturer	WPMtek(Wei Pan Microelectronics)
Package	SOT-223-3L
Operating Temperature	-40℃~+125℃@(Tj)
Voltage - Supply	20V
Output Type	Fixed
Number of Outputs	1
Output Current	1A
Voltage Dropout	1.2V@(1A)
Power Supply Rejection Ratio (PSRR)	70dB@(120Hz)
Features	Overheat protection
Output Voltage	3.3V
Output Configuration	Positive electrode
Noise	0.003%Vout
standby current	5mA

개요

Description

The AMS1117-3.3V is a low dropout (LDO) voltage regulator designed to provide a stable 3.3V output from a higher input voltage, typically ranging from 4.75V to 12V. It delivers a maximum output current of 1A while maintaining a low dropout voltage of around 1.1V, making it suitable for battery-powered applications where efficiency is critical.
Key features include thermal overload protection, short-circuit protection, and a low quiescent current, enhancing reliability and performance. The AMS1117 is widely used in microcontroller projects, sensors, and other electronic devices requiring regulated power.
It comes in various package types, such as SOT-223 and TO-263, facilitating easy integration into circuit designs. The output voltage tolerance is ±1%, ensuring precise voltage regulation for sensitive components. Overall, the AMS1117-3.3V is an essential component for designers needing efficient and reliable voltage regulation in their electronic systems.

Features

The AMS1117-3.3V is a low-dropout (LDO) voltage regulator designed to output a fixed 3.3V. Key features include:
1. Input Voltage Range: Operates from 4.75V to 12V.
2. Output Current: Capable of delivering up to 1A of output current.
3. Low Dropout Voltage: Typically 1.2V at full load, allowing for efficient operation with minimal voltage difference between input and output.
4. Built-in Thermal Protection: Prevents overheating, enhancing reliability.
5. Short Circuit and Overload Protection: Safeguards the device and connected circuits.
6. Low Output Voltage Variation: Provides stable output with low noise and ripple.
7. Package Options: Available in various packages like TO-220, TO-263, and SOT-223, facilitating ease of integration in different designs.
8. Simple Design: Requires minimal external components for operation, making it ideal for compact applications.
This makes the AMS1117-3.3V suitable for powering microcontrollers, sensors, and other low-voltage applications.

Package

The AMS1117-3.3V is typically available in several package types, with the most common being the TO-220, SOT-223, and TO-263. These packages are designed for easy mounting and efficient thermal performance in various applications, particularly in voltage regulation.

Pinout

The AMS1117-3.3V is a low-dropout (LDO) voltage regulator with a pin count of 3. Its pins and functions are as follows:
1. Input (VIN): This pin receives the input voltage, which should be higher than the output voltage (3.3V) to ensure proper regulation. The typical input range is up to 15V.
2. Output (VOUT): This pin provides a regulated output voltage of 3.3V. The AMS1117 can deliver a maximum output current of 1A, depending on thermal conditions.
3. Ground (GND): This pin serves as the ground reference for the device. It is essential for proper operation and stability of the regulator.
The AMS1117-3.3V is widely used in various electronic applications due to its simplicity, low dropout voltage, and ability to operate with minimal external components.

Manufacturer

The AMS1117-3.3V is a low dropout (LDO) voltage regulator manufactured by multiple companies, but the original design is attributed to Advanced Monolithic Systems (AMS). AMS is known for producing analog and mixed-signal ICs (integrated circuits) and specializes in power management solutions, including voltage regulators and reference designs. The company focuses on providing high-performance semiconductor products for various applications, including telecommunications, consumer electronics, and industrial systems.
In addition to Advanced Monolithic Systems, various other manufacturers also produce compatible versions of the AMS1117 regulator, often under different brand names or part numbers. These manufacturers include companies like Texas Instruments, Microchip Technology, and ON Semiconductor, among others. Each of these companies operates within the semiconductor industry, focusing on designing and fabricating electronic components that support a wide range of technological applications.

Application

The AMS1117-3.3V is a low-dropout voltage regulator commonly used in applications such as powering microcontrollers, sensors, and other digital circuits requiring a stable 3.3V supply. It's suitable for battery-powered devices, LED drivers, and embedded systems. Additionally, it's often found in communication devices, automotive electronics, and consumer electronics where reliable voltage regulation is essential.

Equivalent

Equivalent products to the AMS1117-3.3V voltage regulator include:
1. LM1117-3.3
2. MIC5205-3.3
3. LD1117-3.3
4. MCP1700-3302E
5. LP2985-33
These regulators provide similar 3.3V output with low dropout voltage and comparable specifications. Always verify specific parameters for compatibility in your application.