LD1117AG-5.0V-A SOT-223 Product Introduction

LD1117AG-5.0V-A SOT-223 is a low dropout linear regulator. The following is its detailed product introduction:

1、 Basic characteristics
model: LD1117AG-5.0V-A
Packaging form: SOT-223
Output voltage: fixed at 5.0V
Output polarity: positive
Output type: Fixed voltage output
2、 Electrical parameters
Maximum output current: usually 1A (may vary depending on different batches or manufacturers)
Input voltage range: The minimum input voltage should be higher than the output voltage by a certain value (usually 1.5V to 2.5V or more), and the maximum input voltage should not exceed 15V (specific should be determined according to the data provided by the manufacturer)
Working voltage range: able to operate stably within a wide voltage range
Output voltage accuracy: up to ± 2% (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
3、 Physical parameters
Size: The length, width, and height may vary depending on different manufacturers or packaging processes, but SOT-223 packaging typically has smaller dimensions and is suitable for use in compact electronic devices
Weight: Lightweight, suitable for use in electronic devices with weight requirements
4、 Working temperature range
Minimum operating temperature: typically -40 ° C (or lower, depending on the manufacturer)
Maximum operating temperature: typically+125 ° C (or higher, but generally not exceeding this value)
5、 Application Fields
Computer motherboard and graphics card: Provides stable 5V power supply to ensure the normal operation of various electronic components on the motherboard and graphics card
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
ADSL and other equipment: In communication devices, it provides stable power supply for various circuits or modules that require 5V power supply
Post regulator of switching power supply: used as a post regulator in switching power supply systems to improve the stability and accuracy of output voltage
6、 Precautions
When using the LD1117AG-5.0V-A SOT-223 regulator, it should be ensured that the input voltage and current do not exceed their maximum rated values to avoid damaging the regulator or causing performance degradation.
The heat dissipation performance of a voltage regulator is crucial for its long-term stability and reliability. Therefore, good heat dissipation conditions should be ensured during use to avoid performance degradation or damage caused by overheating.
When selecting and using voltage regulators, appropriate models and specifications should be chosen based on specific application and design requirements.
In summary, LD1117AG-5.0V-A SOT-223 is a stable and widely used low dropout linear regulator, suitable for various electronic devices that require a stable 5V power supply.