AP2126K-ADJTRG1

Voltage Dropout (Max):	--
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	68dB ~ 54dB (100Hz ~ 10kHz)
Current - Quiescent (Iq):	90µA
Current - Output:	300mA
Series:	--
Voltage - Output (Max):	5.5V
Voltage - Output (Min/Fixed):	1.25V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

AP2126K-ADJTRG1, from Diodes Inc., is a linear voltage regulator that contains both LDO and switching regulator ICs. It is a high-performance, low- noise, low-dropout, 3A/16V voltage regulator with an integrated power switch. Its on-chip power switch allows the response to be flexible with a wide range of switching frequencies, offering high efficiency and low power consumption.

Application Field & Working Principle

AP2126K-ADJTRG1 can be used in a variety of applications, such as industrial equipment, laptops, servers, and consumer electronics. It is suitable for industrial applications and can be used in high voltage dropout environments. The AP2126K-ADJTRG1 uses a high-current, low-noise, synchronous, N-channel power MOSFET to regulate voltage output. The input voltage to the MOSFET is controlled by an internal, high-precision, current sensing circuitry. The output voltage of the MOSFET is optimized by a high-speed feedback loop that is designed to ensure maximum stability and accuracy. The AP2126K-ADJTRG1 utilizes a multi-level, adaptive, dynamic switching frequency control that allows for optimal efficiency for different load conditions. It also offers a wide range of switching frequencies and contains an I2C control interface to control the output voltage. This control interface can also be used to monitor the operating temperature, output voltage, and other system parameters.The AP2126K-ADJTRG1’s adaptive, multi-level switching frequency control provides high efficiency in a wide range of load conditions. The on-chip power switch ensures fast response time with a wide range of switching frequencies, while the integrated power switch reduces the external components required. The adjustable output voltage is set by the I2C control interface and can also be monitored by an external control bus. The wide input voltage range of 4.75V~16V makes the AP2126K-ADJTRG1 ideal for high voltage dropout environments.The AP2126K-ADJTRG1 is also equipped with a protective circuit that prevents damage from overcurrent, overvoltage, and reverse current. The thermal shutdown function will turn off the regulator if the internal temperature exceeds 150°C. It also has a low EMI output filter, which reduces EMI interference and improves system reliability.

Conclusion

The AP2126K-ADJTRG1 is a highly efficient and reliable linear voltage regulator. Its high conversion efficiency and advanced switching frequency control enable it to offer an excellent performance in a variety of applications. Its low noise output filter also ensures that the AP2126K-ADJTRG1 meets the requirements of industrial, server and consumer electronics applications.

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