LDK220M-R Integrated Circuits (ICs)

Current - Output:	200mA
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	60dB ~ 45dB (120Hz ~ 10kHz)
Current - Supply (Max):	100µA
Current - Quiescent (Iq):	90µA
Series:	--
Voltage Dropout (Max):	0.35V @ 200mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	--
Voltage - Input (Max):	13.2V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LDK220M-R application field and working principle

LDK220M-R, short for “Linear Dropout Regulator”, is a family of low-dropout (LDO) regulators produced by Lite-On Technology Corporation. It is an adjustable, three-terminal adjustable/low-dropout/linear voltage regulator designed to supply up to 1A of output current while operating over an input voltage range of 1.5V to 18V. The LDK220M-R is a versatile device that can be used in a broad range of power supply applications, including general-purpose DC-DC conversion, battery-powered systems, and board-level power distribution.

What is an LDO Regulator?

LDO regulators are a type of voltage regulator that uses an external sensing element to maintain a consistent output voltage despite variations in the input voltage. They are able to provide stable voltage regulation at much lower input voltages compared to other types of linear regulators and do not require additional components for protection. LDOs can be used in a variety of applications such as powering DSPs, microcontrollers, ASICs, and other power-sensitive electronics.

Features of the LDK220M-R

The LDK220M-R is designed to provide a stable output voltage while operating within an input voltage range of 1.5V to 18V. It offers adjustable and fixed output voltage options, and its high precision regulator ensures that the output voltage remains stable even at low dropout conditions (down to 0.5V).The LDK220M-R also includes short-circuit protection which limits the peak current when an output short-circuit occurs. In addition, the device includes thermal protection which turns off the device if it exceeds its absolute maximum junction temperature. It also incorporates reverse current protection to prevent current from flowing back through the device when the input voltage is greater than the output voltage.

Advantages of the LDK220M-R

The LDK220M-R voltage regulator offers a wide range of features and benefits, including low dropout, high current capability, and high precision regulation. It also has a high accuracy over its specified input voltage range, preventing overshoot or undershoot at the output voltage.The LDK220M-R also offers adjustable and fixed output voltages. This versatility makes it suitable for a wide range of applications. It is also designed to be compact and easy to integrate into any power supply design. The LDK220M-R is also designed to be robust and reliable, with integrated overcurrent and thermal protection. This ensures that the device will remain in a safe operating state even under harsh conditions.

Applications of the LDK220M-R

The LDK220M-R is commonly used in battery-powered systems, general-purpose DC-DC conversion, and board-level power distribution applications. It is also able to provide stable voltage regulation in a variety of applications, such as supplying DSPs, microcontrollers, ASICs, and other power-sensitive electronics.The LDK220M-R is an excellent choice for low-voltage, low-power applications such as IoT devices, automotive, medical and industrial products, and consumer electronics. In addition, this regulator is suitable for intermittent peak current draw and can be used in a variety of applications including remote control transmitters and receivers, embedded microprocessors, motor control modules, and portable battery-operated equipment.

Working Principle of the LDK220M-R

The LDK220M-R voltage regulator is based on an adjustable three-terminal linear regulator. It uses an external sensing element to enable precise tracking of the internal reference voltage. The input voltage is applied to the non-inverting terminal of the LDK220M-R regulator and the reference voltage is connected to the inverting terminal. The output voltage is adjusted according to the difference between the input and reference voltages and the current passing through the feedback resistor.When the differential voltage between the input and reference is high, the device will draw more current to reduce the output voltage, and vice versa. This in turn will adjust the output voltage to match the desired level, thus providing stable voltage regulation over a range of input voltages. The device is also able to provide excellent protection against overcurrent and thermal conditions.

Conclusion

The LDK220M-R is an ideal solution for low-voltage, low-power applications. Its adjustable and fixed output options, combined with its high precision regulation, make it suitable for a range of applications. Additionally, its integrated protection features ensure that it is safe to use under harsh conditions.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description