NCV7812ABTG

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The NCV7812ABTG is a voltage regulator of the PMIC - Voltage Regulators - Linear product family. It is a low drop out (LDO) II-type regulator metal package integrated circuit that operates with an output current of up to 600mA. Furthermore, its high-accuracy voltage regulation is achieved with low noise and excellent line and load transient response. Its applications include low dropout point-of-load (POL) voltage regulators for distributed power systems, as well as other power supply configurations. It also finds particular use in automotive, computing, audio/video and telecom applications.

Features:

• Operating Voltage Range: 2.2V-5.5V
• Input Voltage Range: 1.8V-7V
• 200 mV typical dropout voltage at 600 mA
• High-Accuracy Internal Reference Voltage
• Ultra-Low Noise: <70 uV
• Short Circuit and Over-Temperature Protection
• Output Current Limit: 600 mA
• Wide Operating Temperature Range: -40°C to +125°C

Working Principles:

The NCV7812ABTG is an internally compensated low-dropout (LDO) regulator integrated circuit. The voltage regulator operates on an internally compensated amplifier circuit with a low noise output voltage. The voltage regulator generates an output voltage referenced to an internal band-gap voltage reference input. The input voltage to the regulator is regulated with respect to the reference voltage. The regulated voltage is then output to the load.

To ensure that the output voltage is regulated properly, the cut-off current is constantly adjusted to match the load current. The output voltage is monitored by the amplifier and if the voltage drops, the cut-off current is increased to maintain the output voltage within the predetermined tolerance. The error amplifier also sets the regulation point.

The IC also has an additional feature of soft-start, allowing for an initial minimum output voltage to be preset before full output voltage is achieved on the load. This soft-start feature helps in protecting the load from an unwanted surges as the current to the load is increased.

The NCV7812ABTG utilizes an internal power rail to monitor the output voltage and regulate the output during load transients. Its low drop-out voltage allows the regulator to operate with a low input voltage with minimal power consumption. The regulator\'s overload and short-circuit protection features help to protect the load from any excessive currents.

Packaging:

The NCV7812ABTG is available in a 6-pin SOT-23 plastic package with internal heat-dissipating.

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