Power chip

250mA Ultra Low Noise Low Dropout Regulator 4-X2SON -40 to 125

The power supply voltage of the reset chip is 3.0V to 5.5V, the reset high and low levels are valid, the number of monitored voltages: 1, with 200ms reset delay output, power failure monitoring, power-down detection, manual reset input, power-on detection and other functions, reset Threshold voltage 2.63V, built-in 1.25V comparator, can be used to monitor the low voltage of the battery, can be used in computers, controllers, battery-powered equipment, portable equipment and wireless communication equipment, etc.

25W, high voltage input 1200VDC, suitable for photovoltaic power generation, energy storage, communication base stations and other fields

TPS54060A 3.5 to 60-V Input, 0.5-A Step-Down Converter with Eco-Mode

The NCP1631 controller is used in a 2-phase interleaved power factor correction pre-converter. Interleaving consists of two small stages connected in parallel, instead of one large stage. This approach has several advantages, such as simple implementation, the ability to use smaller components, and better heat dissipation. These properties make this interleaved PFC topology suitable for thin applications such as flat-panel TVs and adapters for ultra-thin notebooks. Interleaving can also be extended to the power range of critical conduction mode of operation which is energy efficient and cost effective (no need for low trr diodes). The NCP1631 operates in Frequency Clamped Critical Conduction Mode (FcCrM). This circuit uses frequency foldback to linearly reduce the clamped frequency as a function of power. Therefore, the NCP1631 provides optimized energy efficiency over the entire load range. In addition, the NCP1631 driver has a 180 phase shift which greatly reduces the current ripple, thus reducing EMI and reducing the rms current in the bulk capacitor. The NCP1631 combines all the functions required to build a robust and compact interleaved PFC stage with a minimal number of external components. Using SOIC-16 encapsulation.

TPS5401 3.5V to 42V Input, 0.5A Step-Down Converter

0.5uA ultra-low static power consumption, 300mA current output regulated LDO