NJU7261U45

Voltage - Input (Max):	4.5V
Supplier Device Package:	SOT-89-5
Package / Case:	SOT-89-5/6
Mounting Type:	Surface Mount
Operating Temperature:	-25°C ~ 75°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	30kHz
Current - Output:	250mA (Switch)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.5V
Series:	--
Voltage - Input (Min):	1V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

NJU7261U45 Application Field and Working Principle

NJU7261U45 is a DC-DC switching regulator that belongs to the PMIC - Voltage Regulators family. It serves as an adjustable current or constant current output circuit with several protection functions and controllable switching frequency. It can be used in various applications where effective power control is required, such as white goods, automotive, and industrial equipment. Specifically, NJU7261U45 features a step-down controller that provides excellent current load response and steady output voltage regulation in the presence of large load transients. Its constant voltage regulation is independent of input voltage, and its wide input voltage range allows it to operate even in the harshest environments. Additionally, it can also provide adjustable output current regulation, which effectively prevents overcurrent-induced damage. Finally, it is designed to work with a wide range of switching frequencies, ensuring efficient operation over a wide range of input frequencies. To better understand the working principle of NJU7261U45, it is helpful to understand the operating mode of all DC-DC switching regulators. In general, these regulators work by alternately energising and de-energising the switches in a cycle, allowing for a continuous, steady current to flow through the system. This cycle will continue until the set voltage is achieved, at which point the regulator will stop the energising and de-energising cycles, preventing any additional current to flow through the system. In more detail, the NJU7261U45 works through two stages. The first stage is a current regulator in which the power supply is activated and the current is regulated, such that the current flows through the system at an optimal level, allowing for an efficient power delivery. The second stage is voltage regulation, in which the current regulator ensures that the desired voltage is maintained, regardless of the load placed on the circuit. Once the desired voltage is reached, the regulator will cease its switch cycles, effectively stopping further current and energy flow. In summary, NJU7261U45 is a DC-DC switching regulator from the PMIC - Voltage Regulators family. It is an adjustable current or constant current output circuit with several protection functions and controllable switching frequency. It is designed to work effectively in various applications such as white goods, automotive, and industrial equipment. The NJU7261U45 works in two stages: a current regulator and a voltage regulator. This allows for an efficient and steady power delivery over a wide range of input voltages and frequencies.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description