NCV8881PWR2G

Voltage/Current - Output 3:	8.5V, 40mA
Base Part Number:	NCV8881
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.295", 7.50mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C
Voltage - Supply:	5 V ~ 19 V
w/Sequencer:	No
w/Supervisor:	No
w/LED Driver:	No
Series:	--
Voltage/Current - Output 2:	5V, 100mA
Voltage/Current - Output 1:	3.3 V ~ 8 V, 1.5A
Frequency - Switching:	170kHz
Number of Outputs:	3
Function:	Automotive
Topology:	Step-Down (Buck) (1), Linear (LDO) (2)
Part Status:	Active
Packaging:	Tape & Reel (TR)

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NCV8881PWR2G Application Field and Working Principle

PMIC - Voltage Regulators - Linear + Switching

The NCV8881PWR2G is a power management integrated circuit (PMIC) from ON Semiconductor. It integrates both linear and switching technologies for regulating output voltages. The device is used to supply power for most applications, including automotive, industrial, communication, computers and home appliances.The NCV8881PWR2G provides two outputs with up to 5.25V each or four outputs with up to 3.3V each. The device incorporates a wide range of features, including high performance, low noise, excellent transient response, low quiescent current, external current limit and built-in protection circuits. All of these features are ideal for providing power to high-performance systems.The NCV8881PWR2G works based on a positive-output, feedback-controlled topology. It uses external feedback resistors connected to the programmed output voltage, and a current error amplifier to compare this voltage to a reference voltage. This creates a feedback loop that regulates the output voltage to the preset level.The NCV8881PWR2G incorporates Voltage Transient Impedance Reduction (VTR ) technology in both linear and switching modes. This helps eliminate fast transient spikes caused by load capacitances.In linear mode, the NCV8881PWR2G can provide up to 400mA of continuous current, with a high accuracy of ± 1% over line and load regulations. The integrated low-dropout voltage regulator (LDO) in linear mode allows the regulated output voltage to remain stable, even when the input voltage is +12V. In switching mode, the efficient Pulse-width Modulation (PWM) and Pulse Frequency Modulation (PFM) control circuitry helps reduce power consumption. This allows the most efficient operation possible, while providing a high output current capability up to 3A.The NCV8881PWR2G also includes built-in protection circuits for under-voltage, over-voltage, and over-current conditions. Under-voltage protection enables the device to shut off the output power when the input voltage is below the programed threshold. Over-voltage protection prevents devices from being damaged by voltage levels beyond the specified limit. The over-current protection circuit helps protect the device from current surges or short circuits.In summary, the NCV8881PWR2G is an ideal solution for power management in a wide range of applications. It offers high performance, low noise, excellent transient response, and low quiescent current. It also incorporates Voltage Transient Impedance Reduction (VTR) technology, efficient Pulse-width Modulation (PWM) and Pulse Frequency Modulation (PFM) control circuitry, and built-in protection circuits, all in a single device.

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