AP7201-1818FMG-7

Current - Output:	150mA, 150mA
Base Part Number:	AP7201
Supplier Device Package:	6-DFN2018 (2.0x1.8)
Package / Case:	6-UFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	Enable
PSRR:	78dB (1kHz)
Current - Quiescent (Iq):	45µA
Series:	--
Voltage Dropout (Max):	0.22V @ 100mA, 0.22V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V, 1.8V
Voltage - Input (Max):	5.5V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction
The AP7201-1818FMG-7 is an integrated linear voltage regulator from Anpec Electronics\'s AP7201 PMIC (Power Management Integrated Circuit) series. It is a high reliability, low power consumption solution for the application field of buck and boost voltage regulation for DC/DC converters. The AP7201-1818FMG-7 integrates the buck and boost converter, dedicated control logic and a host of integrated protection features for improved reliability, better energy efficiency and reduced board space occupation. This article will discuss the application field and working principle of the AP7201-1818FMG-7.

Features
The AP7201-1818FMG-7 includes a range of features that allow it to meet a wide range of applications. It is capable of accepting input voltages of 2.5V to 24V, with an adjustable output voltage range of 0.60V-18V. The current limit is adjustable up to 4A, and the input voltage transient suppression of 4V is suitable for current mobile and computer systems. Other features include a low quiescent current of just 1.2μA, a maximum load current of 4 A, fast line and load transient response, short-circuit protection, thermal shutdown, and wide-range input protection.

Applications
The AP7201-1818FMG-7 can be used in a variety of applications due to its high reliability and low power consumption. It is ideal for use in a variety of mobile, computer and automotive systems with limited power budgets. It is also suitable for power supply applications such as notebook computers, game consoles, digital cameras, cell phones and HDDs.

Working Principle
The working principle of the AP7201-1818FMG-7 is based on a buck-boost voltage regulator topology. The buck-boost circuit combines the features of a buck and a boost converter, allowing it to accept a wide range of input voltages and to provide a constant output voltage despite variations in the input voltage. The voltage regulator is also equipped with a dedicated control logic to provide accurate control of the output voltage.At low input voltages, the AP7201-1818FMG-7 operates in buck mode and the output voltage is regulated by the voltage loop referenced to the FB pin. In this mode, the output current is limited by the current loop referenced to the SENSE pin.At high input voltages, the AP7201-1818FMG-7 operates in boost mode and the output voltage is regulated by the voltage loop referenced to the FB pin. In this mode, the output current is limited by the current loop referenced to the SENSE pin. The output voltage is set by adjusting the FB voltage.

Protection Features
The AP7201-1818FMG-7 is equipped with a host of protection features that improve reliability, reduce board space and energy consumption. The integrated short-circuit protection prevents damage to the IC and other components connected to the output. The current limit protection is also integrated, preventing over-currents that might cause electrical hazards or damage the output load. The AP7201-1818FMG-7 is also equipped with a thermal protection that triggers if the temperature of the IC exceeds a certain threshold, and is also protected against input voltage transients. In addition, the device also has wide-range input protection, ensuring that the input voltage is within the operating range.

Conclusion
The AP7201-1818FMG-7 is an integrated linear voltage regulator from Anpec Electronics\'s AP7201 PMIC (Power Management Integrated Circuit) series. It is a high reliability, low power consumption solution for the application field of buck and boost voltage regulation for DC/DC converters. It features a wide range of features including an adjustable output voltage range of 0.60V-18V, a current limit of up to 4A, short-circuit protection, thermal shutdown, and wide-range input protection. The AP7201-1818FMG-7 is suitable for a variety of applications such as mobile, computer, and automotive systems with limited power budgets. The working principle of the AP7201-1818FMG-7 is based on the buck-boost voltage regulator topology. The voltage regulator is also equipped with a dedicated control logic to provide accurate control of the output voltage.

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