AP2125K-2.8TRG1
Compact 2.8V LDO voltage regulators with low noise for efficient power management
Manufacturer： diodes
series introduction
# AP2125K - 2.8TRG1 Product Series Introduction
## 1. Overview
The AP2125K - 2.8TRG1 product series represents a cutting - edge solution in the field of power management integrated circuits (PMICs). These devices are designed to meet the diverse and demanding power requirements of modern electronic systems, offering high performance, reliability, and efficiency in a compact form factor.
## 2. Key Features
### 2.1 Output Voltage
The "2.8" in the model name indicates that the AP2125K - 2.8TRG1 is configured to provide a fixed output voltage of 2.8V. This precise output voltage is crucial for powering components such as microcontrollers, sensors, and other low - voltage integrated circuits that require a stable power supply to operate correctly.
### 2.2 Low Dropout Voltage
One of the standout features of this product series is its low dropout voltage. Dropout voltage is the difference between the input voltage and the output voltage when the regulator is operating at its maximum load current. A low dropout voltage means that the AP2125K - 2.8TRG1 can maintain a stable 2.8V output even when the input voltage is only slightly higher than the output voltage. This is particularly useful in battery - powered applications where the battery voltage decreases over time. For example, in a system powered by a single lithium - ion battery, which has a nominal voltage of 3.7V but can discharge down to around 3V, the low dropout voltage of the AP2125K - 2.8TRG1 ensures that the system can continue to operate properly until the battery is almost fully depleted.
### 2.3 High Output Current Capability
The AP2125K - 2.8TRG1 is capable of delivering a relatively high output current. This makes it suitable for powering multiple components simultaneously or components that have relatively high power consumption. The high - current capability ensures that the device can handle sudden load changes without significant voltage fluctuations, providing a stable power supply to the connected circuits.
### 2.4 Low Quiescent Current
Quiescent current is the current consumed by the regulator when there is no load or a very light load connected to the output. The AP2125K - 2.8TRG1 has a low quiescent current, which is beneficial for battery - powered applications as it helps to extend the battery life. In standby or sleep modes, where the power consumption of the overall system needs to be minimized, the low quiescent current of this regulator ensures that the battery is not drained unnecessarily.
### 2.5 Thermal Protection
To prevent overheating and ensure the long - term reliability of the device, the AP2125K - 2.8TRG1 is equipped with thermal protection. When the temperature of the device exceeds a certain threshold, the thermal protection circuit will automatically reduce the output current or shut down the regulator to prevent damage. This feature is especially important in applications where the device may be exposed to high - temperature environments or when it is operating at high load currents for extended periods.
### 2.6 Short - Circuit Protection
Short - circuit protection is another essential safety feature of the AP2125K - 2.8TRG1. In the event of a short - circuit at the output, the regulator will limit the current flow to a safe level to prevent damage to the device and the connected circuits. This protection mechanism helps to improve the overall reliability of the power supply system and reduces the risk of component failure due to short - circuits.
## 3. Package and Dimensions
The "TRG1" in the model name refers to the specific package type of
Images for reference
SOT-23-5
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