LD1117AG-5.0V-A SOT-223 Product Overview

LD1117AG-5.0V-A SOT-223 is a widely used low dropout linear regulator (LDO). The following is a review of the product:

1、 Product Overview
LD1117AG-5.0V-A SOT-223 is a linear regulator with a fixed output voltage of 5.0V, packaged in SOT-223 form. This product has the characteristics of low voltage drop, high efficiency, small size, and high stability, and is suitable for various electronic devices that require a stable 5V power supply.

2、 Main characteristics
Fixed output voltage: 5.0V, providing stable power output.
Low voltage difference: It can maintain a low input/output voltage difference even when the output current is high, reducing power consumption.
High efficiency: Adopting advanced manufacturing processes and materials to improve power conversion efficiency.
Small size: The SOT-223 packaging form makes the product compact and easy to use in compact electronic devices.
High stability: With excellent load and linear adjustment rates, it ensures stable output voltage under various loads and input voltage changes.
3、 Electrical parameters
Maximum output current: usually 1A, which may vary depending on different batches or manufacturers.
Input voltage range: It is usually required that the input voltage be higher than the output voltage by a certain value (such as 1.5V to 2.5V or more) to ensure the normal operation of the voltage regulator. The maximum input voltage generally does not exceed 15V, which should be determined based on the data provided by the manufacturer.
Output voltage accuracy: up to ± 2%, the specific accuracy may vary depending on different batches or manufacturers.
Linear adjustment rate: an indicator that measures the impact of input voltage changes on output voltage stability, usually low.
Load regulation rate: an indicator that measures the impact of load current changes on output voltage stability, which is usually low.
4、 Application Fields
LD1117AG-5.0V-A SOT-223 is widely used in various electronic devices, including but not limited to:

Computer motherboard and graphics card: Provides a stable 5V power supply to ensure that various electronic components on the motherboard and graphics card work properly.
LCD monitor and LCD TV: provide stable power supply for the backlight module of LCD display screen or other electronic components that require 5V power supply.
DVD decoding board: In a DVD player or decoder, it provides a stable power supply for the decoding chip or other circuits that require a 5V power supply.
Communication equipment, such as ADSL, provides stable power supply for various circuits or modules that require 5V power supply.
Portable devices, such as mobile phones, tablets, etc., are also potential application areas for LD1117AG-5.0V-A SOT-223 due to their small size and the need for stable power supply.
5、 Precautions for use
Heat dissipation: Although LD1117AG-5.0V-A SOT-223 has a smaller package size, attention should still be paid to heat dissipation when used in high load or high temperature environments. It is recommended to adopt appropriate heat dissipation measures, such as adding heat sinks or improving circuit board layout.
Input voltage limit: To ensure the normal operation of the voltage regulator and avoid damage, the input voltage should be strictly controlled within the allowable range. To avoid the performance degradation or damage of the voltage regulator caused by excessively high or low input voltage.
Load capacity: When selecting and using voltage regulators, appropriate models and specifications should be chosen based on specific application and design requirements. Ensure that the maximum output current of the voltage regulator can meet the load demand.
In summary, LD1117AG-5.0V-A SOT-223 is a low dropout linear regulator with stable performance and wide applications. Its fixed output voltage is 5.0V, which has the characteristics of low voltage difference, high efficiency, small size, and high stability, and is suitable for various electronic devices that require a stable 5V power supply.