The MAX3945ETE+T multi rate, low-power limiting amplifier is powered by a+3.3V power supply and optimized for use in fiber channel and Ethernet transmission systems, with a data rate of up to 11.3Gbps. The high-sensitivity limiting amplifier limits the signal generated by the transimpedance amplifier to produce a CML level differential output signal. All differential inputs and outputs (I/O) are optimized for 50 Ω back terminated PCB transmission lines. The MAX3945 dual channel limiting amplifier is equipped with programmable filters that can optimize sensitivity for different data rates and suppress relaxation oscillations that may occur in the optical system. The MAX3945 integrates two loss of signal (LOS) detection circuits and a programmable time shielded LOS output.

MAX15062CATA+T high-efficiency, high-voltage, synchronous buck DC-DC converter with built-in MOSFET, operating in the input voltage range of 4.5V to 60V. The converter provides an output current of up to 300mA, with output voltages of 3.3V (MAX15062A), 5V (MAX15062B), and adjustable output voltage (MAX15062C). The device operates within a temperature range of -40 ° C to+125 ° C and is packaged in a compact 8-pin (2mm x 2mm) TDFN package

MAX1967ESA+T/MAX1967EUB+T is a voltage mode pulse width modulation (PWM), step-down DC-DC controller, which is very suitable for applications with strict cost requirements. These devices drive low-cost N-channel MOSFET high-end switches and synchronous rectifiers, and do not require external Schottky power diodes or current sensing resistors. Provide short-circuit and current limiting protection by detecting the drain source voltage of low-end FETs. Both devices can provide output voltages as low as 0.8V, making them ideal for powering DSP cores and other low-voltage logic circuits. The input voltage range of MAX1966ESA+T is 2.7V to 5.5V; the input voltage range of MAX1967EUB+T is 2.7V to 28V. In the ultra-low cost design, MAX1966ESA+T/MAX1967EUB+T can provide an efficiency of over 90%, and by optimizing the selection of external components, the efficiency can reach 95%. MAX1966ESA+T/MAX1967EUB+T operates at a frequency of 100kHz and allows for the use of aluminum electrolytic capacitors and iron powder cores in low-cost designs. If high-performance surface mount components are selected, they can also provide better performance indicators. The MAX1966ESA+T adopts a low-cost 8-pin SO package, while the MAX1967EUB+T adopts a 10 pin µ MAX package.

Ensure to reduce the maximum supply current within all temperature ranges. Wide working voltage range: 1.5V to 12V. 100% at 3 volts Pin 1 is used to increase the switching frequency. Ensure a minimum power efficiency of 96%. Improved the minimum open circuit voltage conversion efficiency by 99%. Improve thyristor blocking protection Simply convert a+5V logic power supply to a 5V power supply. Simple voltage doubling VOUT=(-) nVIN. Easy to use; Only two external non critical passive components are needed. Improved the direct replacement of industrial standard ICL7660 and other second source devices. Pb Free available (certified lead-free)

Design Attention DN572: Introduction LT8672 is an active rectifier controller (along with MOSFET) that provides reverse current protection and correction for power supply in automotive environments. This work has traditionally been carried out by Schottky diodes, and the active protection of LT8672 has many advantages:

On March 28th, Housheng issued a notice of resistor price increase, but little did they know that on the same day, Guojus subsidiary Qilixin also issued a notice of inductor price increase to its agents. This time, Qilixins inductor price increase was significant, with an adjustment range of 45% to 68% according to the notice.

Just as the weather warmed up in 2018, the US President brought bad news to US China trade. US President Trump officially signed a memorandum of understanding on trade with China at the White House. Trump announced on the spot that tariffs may be imposed on $60 billion worth of goods imported from China.

The Ministry of Finance and four other departments have issued the "Enterprise Income Tax Policy for Integrated Circuit Manufacturing Enterprises". The Policy proposes that after January 1, 2018, integrated circuit production enterprises or projects with a line width of less than 130 nanometers and an operating period of more than 10 years that invest in new integrated circuits will be exempt from corporate income tax in the first two years, and will be subject to a 50% reduction in corporate income tax at the statutory tax rate of 25% from the third to the fifth year, and will enjoy requirements until the expiration of the term.

On March 28th, Premier Li Keqiang presided over a State Council executive meeting to determine measures to deepen value-added tax reform and further reduce the tax burden on market entities. The meeting decided that starting from May 1, 2018, the value-added tax rate for industries such as manufacturing will be reduced from 17% to 16%, and the value-added tax rate for industries such as transportation, construction, basic telecommunications services, and agricultural products will be reduced from 11% to 10%. It is expected that the annual tax reduction will be 240 billion yuan.

The shortage and price increase of resistors have further intensified. Recently, resistor manufacturer Lizhi Electronics issued a price increase notice, with some products of Lizhi Electronics increasing by 15% -30%. It is expected that the shortage and price increase of resistors will continue until the third quarter.