NCP5269BMNTWG

Voltage - Supply (Vcc/Vdd):	3.3 V ~ 28 V
Supplier Device Package:	20-QFN (3x3)
Package / Case:	20-VFQFN Exposed Pad
Operating Temperature:	-40°C ~ 100°C (TA)
Control Features:	Enable, Frequency Control, Power Good
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	--
Frequency - Switching:	300kHz, 400kHz, 600kHz
Series:	--
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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NCP5269BMNTWG Application Field and Working Principle

NCP5269BMNTWG is part of the Power Management IC (PMIC) Voltage Regulator family, specifically classified as DC-DC Switching Controllers. It is a high performance linear and switch mode controller device that is ideal for very low Iq, high voltage, and synchronous rectified applications.NCP5269BMNTWG is used in a wide range of end-use applications including: Consumer Audio Visual devices such as TV, LCD, and sound amplifiers; Automotive (lighting, batteries, strmel circuits); Telecommunications; Lighting devices such as LED, HID, and Fluorescent lighting fixtures; and Medical applications such as medical monitors and hand-held medical devices.The NCP5269BMNTWG is designed with a high precision, wide voltage range, low Iq voltage mode controller architecture. The Synchronous rectifying controller features an integrated dual error amplifier, an active loop compensation circuit, an ultra-low Iq mode, and a power down mode. A full speed range 0.5V to 20V operating voltage range, a wide temperature range, and a low dropout enable projects to meet the challenging power requirements of applications in the consumer, automotive, and industrial markets.The NCP5269BMNTWG is a synchronous buck, flyback, and Cuk converter. It supports both voltage mode and current mode control. The NCP5269BMNTWG operates between an input voltage range of 3V to 36V and provides constant output voltage in the range of 0.5V to 20V. Output current is programmable up to 5A depending on the load configuration.The operating principle of NCP5269BMNTWG is based on voltage mode control. The NCP5269BMNTWG uses a reference output voltage to adjust the input voltage and control the output current according to the voltage. The voltage is regulated by switching the power devices and adjusting the duty cycle of the switching waveform. The output voltage is then usually reset. The current mode control adjusts the switch duty cycle based on a sensed output current for greater efficiency.The NCP5269BMNTWG has a series of built-in features for enhanced protection, robustness and user convenience. These features include: an adjustable soft start with a maximum rise time of 30us, adjustable under-voltage lockout, adjustable over-temperature protection, over-current protection, short-circuit protection and much more.The NCP5269BMNTWG is a high performance, low input-current, PMIC voltage regulator ideal for a wide range of cost-sensitive, high voltage, and synchronous rectified applications. This versatile regulator provides smooth voltage transitions, low noise, and efficient power conversion, making it a perfect choice for use in consumer, automotive, and industrial applications.

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