NCP1529MUTBG Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	0.9V
Base Part Number:	NCP1529
Supplier Device Package:	6-UDFN (2x2)
Package / Case:	6-UDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	1.7MHz
Current - Output:	1A
Voltage - Output (Max):	3.9V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.7V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The NCP1529MUTBG is a high-efficiency, single-chip buck regulator with a synchronous rectifier. It is a device from the Voltage Regulators family of DC DC Switching Regulators. This type of linear regulator is used for power conversions from a DC input voltage to a regulated lower DC output voltage. The NCP1529MUTBG is designed to minimize the number of external components and reduce the complexity of power supply designs.The device supports non-isolated buck conversion with a switching frequency of 700kHz to 1.25MHz. This controller is capable of delivering an output current up to 3A. It employs a constant current mode to maintain a regulated output voltage from 1.2V to 5.5V. It also has an under-voltage lockout (UVLO) feature that turns off the output on low-voltage conditions.The NCP1529MUTBG features a built-in current sensing circuit which allows the switching frequency to be adjusted to reduce the switching losses. This helps to increase the overall efficiency of the power supply. It also has an internal softstart circuit, which allows the output voltage to rise linearly with time. This helps avoid inrush current during startup and provides a smoother transition to a fully regulated output voltage.The device also includes additional protection features such as an over-current protection (OCP) and short-circuit protection (SCP). The OCP feature monitors the output current to guarantee the total load current does not exceed the maximum specified limit. The SCP feature shuts off the output if an abnormal current is detected.The NCP1529MUTBG integrates power MOSFETs for both the high-side and low-side switches. It also features a built-in compensation network which allows the user to adjust the duty cycle and output voltage by using external resistors. This reduces the complexity of the design process as the user does not need to use additional power components to optimize the output voltage. The NCP1529MUTBG is designed to operate over the extended operating temperature range from -40°C to +125°C. This makes it suitable for use in harsh operating environments, such as those found in automotive or industrial applications.The design of the NCP1529MUTBG is optimized to offer a high efficiency, low output noise and fast transient response. It is available in a Green/Halogen-free, 3 mm x 3mm QFN package.

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