AP2122AK-3.0TRG1

Voltage Dropout (Max):	0.4V @ 150mA
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
Control Features:	Enable
PSRR:	70dB (10kHz)
Current - Quiescent (Iq):	50µA
Current - Output:	150mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to AP2122AK-3.0TRG1

The AP2122AK-3.0TRG1 is a high-efficiency, low-noise linear voltage regulator designed to power complex, low-power circuitry in a variety of applications. Its three-terminal architecture is designed to reach target voltage levels with reduced drops resulting in more efficient and reliable voltage regulation. The device also features low output and shutdown current operations, as well as a low quiescent current making it a suitable power source for a variety of battery or low-power applications.

Features

The AP2122AK-3.0TRG1 was designed with a variety of features that make it suitable for complex and low-power circuitry applications. Its main features include:- Wide input voltage range: 2.5V to 5.5V- Over Current, Overtemperature and Overvoltage Protection- Fast Response Time: less than 500ns- Low ground current- Low output capacitance- Maximum output voltage: 3V- Output voltage accuracy: 0.5%- Output current: up to 250mA- Low quiescent current

Application Fields

The AP2122AK-3.0TRG1 is suitable for applications that require a low output voltage with low noise and high efficiency. The device can operate from a variety of sources, from 2.5V to 5.5V and can reach target voltage levels with minimal drops. This makes it suitable for a variety of battery-operated and low-power applications that require voltage regulation, including: – Wireless handsets and wearables– IoT devices – Server systems– Set-top boxes– Electronic toys– Handheld gaming devices– Industrial, medical, and consumer applications– Automotive applications

Working Principle

The AP2122AK-3.0TRG1 is a high-efficiency linear voltage regulator. It works by passing a constant current through a series of resistors, known as a voltage divider. This voltage divider sets the output voltage of the regulator. The output voltage is determined by the ratio of the resistors in the voltage divider. The output voltage is then compared to a reference voltage, which is adjustable. If the output voltage is lower than the reference voltage, an increase in current is sent to the resistors in the voltage divider until the output voltage equals the reference voltage. Conversely, if the output voltage is higher than the reference voltage, the current is reduced in the voltage divider. The result is an output voltage that is equal to the reference voltage. The AP2122AK-3.0TRG1 features a variety of protective features, including protection from short-circuits, over-temperature, and over-voltage conditions. The device also has a low input/output capacitance and a low quiescent current feature. The combination of these features makes the AP2122AK-3.0TRG1 an efficient and reliable liner voltage regulator.

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