LD39020ADTPU11R

Voltage Dropout (Max):	0.35V @ 200mA
Supplier Device Package:	4-DFN (1x1)
Package / Case:	4-XDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Protection Features:	Over Current, Over Temperature, Soft Start
Control Features:	Enable
PSRR:	80dB ~ 55dB (1kHz ~ 100kHz)
Current - Quiescent (Iq):	40µA
Current - Output:	200mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.1V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LD39020ADTPU11R Application Field and Working Principle

PMIC - Voltage Regulators - Linear

The LD39020ADTPU11R is a linear voltage regulator from Panasonic. It is widely used in battery-powered systems or power supplies for servers, and it is one of the most popular voltage regulators in the market. It has a wide input voltage range, low operating current, and excellent thermal stability, making it suitable for applications in various electric systems.This article will discuss the application field and working principle of LD39020ADTPU11R.

Application Field of LD39020ADTPU11R

LD39020ADTPU11R from Panasonic is a linear voltage regulator that is suitable for a variety of electric systems. It is specifically designed for 3.3-Volt, 5-Volt and 12-Volt systems. It is a CMOS type voltage regulator, which means it can reduce the power consumption without sacrificing accuracy. It is a programmable type regulator, meaning it can be setup for its input and output voltage.It has wide operating voltage range from 2.5V to 20V and can support load current up to 0.8A. It also provides protection from over-voltage, over-current, and short-circuit conditions. The over- voltage protection comes with built-in circuitry, while the other protective features can be setup with the help of external resistors.The LD39020ADTPU11R is commonly used in battery-powered systems such as remote controllers, game consoles, and radio transceivers. It is also suitable for power supplies for servers and other electric systems.

Working Principle of LD39020ADTPU11R

The LD39020ADTPU11R is a non-synchronous type linear regulator, meaning it does not require an external clock for operation. It is a two-terminal linear regulator, meaning it only requires a ground connection and an input voltage connection. The regulator will regulate the output voltage using a comparison circuit.It compares the output voltage with a reference voltage and controls the output voltage accordingly. It first amplifies the difference of the voltages using differential amplifiers and then uses a control circuit to reduce the output voltage. The output voltage can be adjusted using two external resistors.The LD39020ADTPU11R also has over-voltage protection and other protective features to protect the device from various conditions. The over-voltage protection monitors the output voltage and turns off the device when the voltage exceeds the safe level. It also monitors the input voltage to ensure that it is within the specified voltage range.It also has a thermal shutdown circuit to protect the device from overheating. This thermal protection feature turns off the device when the temperature exceeds the safe limit. It also has a POK (Power OK) output to signal when the output voltage is within the acceptable range.

Conclusion

The LD39020ADTPU11R is a linear voltage regulator from Panasonic. It is suitable for 3.3-Volt, 5-Volt, and 12-Volt systems. It is a CMOS type regulator with wide operating range, low operating current and excellent thermal stability. It has built-in protection against over-voltage, over-current, and short-circuit conditions.It is commonly used in battery-powered systems and power supplies for servers. It is a two-terminal regulator and does not require an external clock for operation. It compares the output voltage with a reference voltage and controls the output voltage using a control circuit. It also has protection against over-voltage, over-current, short-circuit conditions, and overheating.

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