ADP121-ACBZ20R7 Integrated Circuits (ICs)

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ADP121-ACBZ20R7 is part of the comprehensive analog solutions from Analog Devices Inc. It is a low-voltage, ultra-low-drop voltage regulator which offers low ON resistance, fast transient response, and protection against overcurrent, overvoltage and overheating conditions. ADP121-ACBZ20R7 belongs to the family of PMIC (Power Management Integrated Circuits) – Voltage Regulators – Linear. PMICs are important components used in portable devices and small form-factor systems to provide energy management solutions.

The ADP121-ACBZ20R7 offers a wide input voltage range (1.6 V to 5.5 V) and a low-dropout (LDO) output of up to 20V. It is a current-mode control device that provides fast transient response and good load regulation. It features a wide current range of 24 mA up to 1.5 A and can handle up to 5A peak current, which makes it suitable for a variety of applications.

The ADP121-ACBZ20R7 is typically used in battery-powered applications such as portable audio, handheld systems, mobile phones, tablets, cameras, and other portable or handheld electronic devices. It can also be used in automotive applications like navigation systems, gauge clusters and infotainment systems. It can also be used in industrial systems such as power supplies and computer monitors.

In order to protect the device from damage due to overcurrent, the ADP121-ACBZ20R7 features an overcurrent protection (OCP) circuit. The OCP circuit has two modes of operation: a constant current mode and a constant voltage mode. In constant current mode, the load current is compared to the internal reference current (IREF) and is limited to protect the device from damage. In constant voltage mode, the voltage is compared to the internal reference voltage (VREF) and is limited to protect the device from damage.

The ADP121-ACBZ20R7 also features a thermal shutdown circuit which monitors the internal temperature of the device and reduces output current in order to protect it from damage. The device also has a fast transient response, making it suitable for applications that require fast voltage/current changes.

The ADP121-ACBZ20R7 operates in two modes: low dropout (LDO) mode and high impedance (HV) mode. In the LDO mode, the device features a low dropout voltage of 0.4 V and provides an output voltage that is regulated and controlled by the load current. In the HV mode, the device presents a high-impedance output voltage that is not regulated but instead controlled by the load current.

The ADP121-ACBZ20R7 is offered in a DFN2020-4 package which is a 1.2mm square package with an exposed pad for improved thermal dissipation. It is an efficient, effective, and cost-effective solution for providing power management solutions in a variety of applications.

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