PQ120DNA1ZPH

Voltage Dropout (Max):	0.5V @ 500mA
Supplier Device Package:	SC-63
Package / Case:	TO-252-5, DPak (4 Leads + Tab), TO-252AD
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	60dB (120Hz)
Current - Quiescent (Iq):	8mA
Current - Output:	1A
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	12V
Voltage - Input (Max):	24V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The PQ120DNA1ZPH is a linear voltage regulator, which provides a great solution for providing a regulated output voltage of up to 1.2 volts and a peak load current of 200 mA. This device is an ideal choice for portable applications and other battery-powered systems. It provides fast transient response and a high output accuracy, which makes it an attractive solution for various power supply applications.

Applications

The PQ120DNA1ZPH is used for general purpose voltage regulation, such as in portable systems, audio/visual equipment, PDAs, computers and networking equipment, handheld equipment and instrumentation, industrial automation and control, automotive applications and other battery-powered applications. The device also has the ability to work at both low and high line voltage conditions, making it an ideal choice for applications requiring extended input voltage range.

Features

The PQ120DNA1ZPH offers a wide range of features, including low dropout voltage, adjustable output voltage, low power consumption, low output noise and fast transient response. Other features include thermal shutdown and over current protection. The device also allows for in-rush current limiting and adjustable current limiting, making it an ideal choice for applications where a stable output voltage is required.

Working Principle

The PQ120DNA1ZPH works on the principle of linear voltage regulation. The linear voltage regulator consists of an error amplifying circuit, a power transistor and a power output stage. The error amplifier amplifies the difference between the output voltage and the reference voltage and produces a control current. This control current is compared in the power transistor, which acts as a variable resistor, thus controlling the output voltage. The power output stage is then used to drive the load.

Conclusion

The PQ120DNA1ZPH is a linear voltage regulator, which is suitable for a wide range of applications, including portable systems, audio/visual equipment, PDAs, computers and networking equipment, handheld equipment and instrumentation, industrial automation and control, automotive applications and other battery-powered applications. The device offers features such as low dropout voltage, adjustable output voltage, low power consumption, low output noise and fast transient response. It is an ideal choice for applications requiring stable output voltage, in-rush current limiting and adjustable current limiting.

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