PQ070XH02ZZ

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PQ070XH02ZZ is a Voltage Regulators from the Linear PMIC (power management IC) family. It is designed for use in high current, 1.2V to 1.4V voltage regulator applications, including load-line regulation, current regulation, and adaptive regulation. The IC integrates an advanced low-voltage, low-power switch-mode regulation controller with all necessary power supply components and internal current limitation circuits. It is capable of providing a very low output voltage drop, fast transient response, and high efficiency.

Features

• Wide input voltage range: 4V - 12V
• Output current capability: up to 10A
• High efficiency: up to 98%
• High switching frequency: 500 kHz - 1.2 MHz
• Integrated load-line regulation and current-regulation
• Adaptive output voltage regulation
• Integrated high-side and low-side MOSFETs
• Configurable slew rate and frequency
• Programmable output voltage

Application Field

PQ070XH02ZZ is a suitable choice for high current voltage regulator applications, such as:

• High-performance server and storage solutions
• Network and communication equipment
• Industrial power applications
• Power over Ethernet (PoE) solutions
• Smart power distribution architectures
• High-end embedded computing applications
• High-end gaming systems
• Home and building automation solutions

Working Principle

The PQ070XH02ZZ has a typical boost-buck structure and utilizes a PWM control circuit to regulate the output voltage. It is the purpose of the PQ070XH02ZZ to ensure that the output voltage follows the set point, even though the load current and input voltage can vary. The PQ070XH02ZZ works by sensing the output voltage through a voltage divider and comparing it with a reference voltage, as set by the user. The power stage is then adjusted accordingly to get the correct output voltage. PQ070XH02ZZ also incorporates emulated current mode control, which keeps the power losses in the power stage and the efficiency of the IC at a maximum.

The PQ070XH02ZZ also provides various protection features, such as an over-voltage protection circuit which shuts down the IC when the output voltage is higher than a predetermined voltage, and a thermal shutdown circuit which shuts down the IC if the temperature is too high.

In summary, PQ070XH02ZZ is a highly integrated, low-voltage, high-current voltage regulator, designed for use in wide range of applications, such as servers, storage solutions, communication equipment, PoE solutions, and embedded computing applications.

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