Today, we will introduce the LM2575S-3.3 Miniconverter Switching Regulators.

Description

● The LM2575/6 series switching regulators are monolithic integrated circuits designed for use in "buck" or "buck/boost" regulator applications requiring accurate output voltages over combined variations of line, load and temperature. This unique series greatly simplifies switching power supply design.The LM2575 has a maximum output cumrent of 1A and the LM2576 is rated for 3A.

● The LM2575/6 series miniconverters include a switching regulator and compensation network all within the same package. Just add a choke, catch diode and two capacitors to obtain an efficient DC-to-DC converter. The current limit and thermal shutdown features of the LM2575/6 series fully protect the device against overstress conditions.

● The LM2575/6 series offers an alternative to popular 3 terminal linear regulators by providing higher efficiency with reduced heatsink size.In many applications a heat sink will not be required.

Features

● Pin for pin replacement for National's LM2575/6 series 

● DC-to-DC buck or buck/boost converter requiring only 4 support components

● Fixed or adjustable voltages

● Preset output voltages of 3.3V, 5V and 12V

● Wide output voltage range, 1.23V to 35V

● 82% typical efficiency 5V out

● Wide input voltage range, 4V to 40V

● Inhibit/enable control pin

● Industrial temperature range

● TO-220 and TO-263 packages

Applications

● Micro controller power supplies

● Medical equipment

● Industrial power supplies

● Instrumentation power supplies

On October 17th, the US government updated its export control regulations for artificial intelligence (AI) chips. In addition to restricting US companies from selling chips to mainland China, it further strengthened restrictions on the export of related products from semiconductor equipment manufacturers such as Applied Materials, Lam Research, and KLA. The US has further limited China's ability to purchase and manufacture high-end chips. In this context, a trend of domestic substitution has quietly emerged. Shenzhen-based Sarc Microelectronics Co., Ltd. has been following the path of domestic substitution, committed to research and development and production of high-end chips to meet the needs of the domestic market. Despite encountering difficulties in the past, Sarc Microelectronics has firmly been on this path and has continuously made significant progress. The future of Sarc Microelectronics' slkor is full of unlimited possibilities and will undoubtedly lead at the forefront of the semiconductor field. Through continuous technological innovation and market expansion, Sarc Microelectronics will make positive contributions to the development of the global semiconductor industry.

As a high-tech company, Sarc Microelectronics possesses strong research and development capabilities and leading technological expertise, dedicated to the development and production of high-performance, low-power semiconductor devices and solutions. This article will introduce the parameters and applications of Sarc Microelectronics' LM2575S-3.3.

LM2575S-3.3 is an efficient, stable, and reliable DC-DC power chip with features such as a 45V input voltage, 3.3V output voltage, 7.5mA output current, and a switching frequency of 52kHz. It is suitable for various applications, including microcontrollers, medical devices, and instruments, ensuring the normal operation of these devices.

LM2575S-3.3 is one of Sarc Microelectronics' DC-DC power chips, with parameters including an input voltage range of 4.75V to 45V, an output voltage of 3.3V, an output current supporting up to 7.5mA, a switching frequency of 52kHz, and a TO-263-5 package. With its versatile input and output voltage options, LM2575S-3.3 can be widely applied in various environments and working conditions, meeting the common voltage requirements of many electronic devices.

LM2575S-3.3, as a product of Sarc Microelectronics, possesses the following characteristics:

Industrial temperature range: This chip can operate within a temperature range of -40°C to +125°C, making it suitable for various harsh environmental conditions.

Minimal external components for fixed or adjustable voltage: LM2575S-3.3 only requires four supporting components, namely input capacitor, output capacitor, inductor, and diode, to achieve fixed or adjustable output voltage.

LM2575S-3.3 also finds applications in diverse scenarios:

Microcontrollers: LM2575S-3.3 provides stable power support to microcontrollers, ensuring their proper functioning. Whether in embedded systems or industrial automation equipment, it offers efficient and stable power supply.

Medical devices: Medical devices have strict requirements for power supply, demanding high precision and reliability. With these characteristics, LM2575S-3.3 guarantees safe operation and accurate performance in medical applications.

Instruments and meters: Instruments and meters often require a power supply with high precision and low noise. LM2575S-3.3, with its low ripple output and stable voltage characteristics, provides a stable and low-noise power supply for instruments and meters.

In addition to LM2575S-3.3, Sarc Microelectronics also offers a variety of excellent power IC products. For example, DC-DC power chips such as LM2596SX-12, LM2596SX-ADJ, LM2577S-ADJ, SL2733, LM2596S-ADJ, MC34063, LM2596S-5.0, LM2576S-3.3, and LM2596S-12 also possess outstanding performance and reliability, providing efficient power solutions for electronic devices in different fields.

About SLKOR

With an elite team from prestigious Chinese Tsinghua University and Korean Seoul Yonsei University, Shenzhen Slkor Micro Semicon Co., Ltd. is dedicated to the third generation semiconductor SiC power devices and conventional semiconductor devices. We are strong on the relevant methodologies, new materials, new technologies and new products. Our products cover discrete devices and ICs,  diodes, transistors, power devices, power management chips, and analogue chips etc. Under the strong leadership of Mr. Song Shiqiang, the CEO of Slkor, starts from an IP design house, Slkor is now a national high-tech enterprise covering the R&D, production and sales service of semiconductor devices. Slkor provides quality domestic equivalents of semiconductor from major international players. For prompt services, Slkor has two flagship stores in the world famous hardware valley Shenzhen Huaqiangbei.

LM2575S-3.3To Product Page