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Monolithic Power Systems Inc.

National Semiconductor, also known as NatSemi, was an American semiconductor manufacturer that was founded in 1959. The company was headquartered in Santa Clara, California, and was known for its innovative designs and high-quality products. National Semiconductor was one of the pioneers in the semiconductor industry and played a significant role in the development of the integrated circuit. National Semiconductor was founded by a group of engineers who had previously worked at Fairchild Semiconductor. The company's first product was a voltage regulator, which was used in electronic devices to regulate the voltage of the power supply. This product was a huge success, and National Semiconductor quickly became a leading supplier of voltage regulators. Over the years, National Semiconductor expanded its product line to include a wide range of semiconductor products, including amplifiers, analog-to-digital converters, digital-to-analog converters, and microcontrollers. The company was also known for its innovative designs, such as the first operational amplifier and the first microprocessor. National Semiconductor was a publicly traded company and was listed on the New York Stock Exchange. The company had a strong financial performance and was consistently profitable. In 2011, National Semiconductor was acquired by Texas Instruments, another leading semiconductor manufacturer. National Semiconductor was known for its commitment to innovation and quality. The company invested heavily in research and development and had a strong focus on customer satisfaction. National Semiconductor was also committed to environmental sustainability and was recognized for its efforts to reduce its carbon footprint and promote sustainable practices. In conclusion, National Semiconductor was a leading semiconductor manufacturer that played a significant role in the development of the integrated circuit. The company was known for its innovative designs, high-quality products, and commitment to customer satisfaction and environmental sustainability. Although National Semiconductor is no longer an independent company, its legacy lives on in the semiconductor industry.

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>PT5107M PT5107M NATIONAL SEMICONDUCTOR - Module DC-DC 1-OUT 15V 1A 3-Pin(3+2Tab) SIP Module 97.86
>PT78HT233V PT78HT233V NATIONAL SEMICONDUCTOR - Module DC-DC 1-OUT 3.3V 2A 3-Pin SIP Module 134.54
>PT79SR112T PT79SR112T NATIONAL SEMICONDUCTOR - Module DC-DC 1-OUT -12V -1.5A 3-Pin SIP Module 176.8
>PTH05010WAZ PTH05010WAZ NATIONAL SEMICONDUCTOR - Module DC-DC 5VIN 1-OUT 0.8V to 3.6V 15A 10-Pin SMD Module Tray 35.78
>PTH08000WAH PTH08000WAH NATIONAL SEMICONDUCTOR - Module DC-DC 1-OUT 0.9V to 5.5V 2.25A 6-Pin DIP Module Tray 18.235
>DCP012405BP DCP012405BP NATIONAL SEMICONDUCTOR - Module DC-DC 24VIN 1-OUT 5V 0.2A 1W 7-Pin PDIP Tube 37.4635
>DCP010512BP-U DCP010512BP-U NATIONAL SEMICONDUCTOR - Module DC-DC 5VIN 1-OUT 12V 0.083A 1W 7-Pin SOP Tube 26.324
>DCP010507DBPE4 DCP010507DBPE4 NATIONAL SEMICONDUCTOR - Module DC-DC 5VIN 2-OUT 6.5V/-6.5V 0.07A 1W 7-Pin PDIP Tube 22.816
>DCR021205P DCR021205P NATIONAL SEMICONDUCTOR - Module DC-DC 12VIN 1-OUT 5V 0.4A 2W 10-Pin PDIP Tube 26.2
>DCPA10512DP-U/700 DCPA10512DP-U/700 NATIONAL SEMICONDUCTOR - Module DC-DC 5VIN 2-OUT 12V/-12V 0.041A/-0.041A 1W 7-Pin SOP T/R 25.3983
>DCPA10515DP-U/700 DCPA10515DP-U/700 NATIONAL SEMICONDUCTOR - Module DC-DC 5VIN 2-OUT 15V/-15V 0.033A/-0.033A 1W 7-Pin SOP T/R 6.179
>DCPA10505DP-U/700 DCPA10505DP-U/700 NATIONAL SEMICONDUCTOR - Module DC-DC 5VIN 2-OUT 5V/-5V 0.1A/-0.1A 1W 7-Pin SOP T/R 16.138
>DCP021515P DCP021515P NATIONAL SEMICONDUCTOR - Module DC-DC 15VIN 1-OUT 15V 0.133A 2W 7-Pin PDIP Tube 32.4
>DCP020509U DCP020509U NATIONAL SEMICONDUCTOR - Module DC-DC 5VIN 1-OUT 9V 0.222A 2W 12-Pin SOP Tube 26.817
>DCP021205U DCP021205U NATIONAL SEMICONDUCTOR - Module DC-DC 12VIN 1-OUT 5V 0.4A 2W 12-Pin SOP Tube 31.98
>DCV011512DP DCV011512DP NATIONAL SEMICONDUCTOR - Module DC-DC 15VIN 2-OUT 12V/-12V 0.083A 0.97W 7-Pin PDIP Tube 20.601
>DCV011515DP DCV011515DP NATIONAL SEMICONDUCTOR - Module DC-DC 15VIN 2-OUT 15V/-15V 0.066A 0.97W 7-Pin PDIP Tube 23.839
>DCV010515P DCV010515P NATIONAL SEMICONDUCTOR - Module DC-DC 5VIN 1-OUT 15V 0.066A 0.97W 7-Pin PDIP Tube 20.816
>DCR022405P-U DCR022405P-U NATIONAL SEMICONDUCTOR - Module DC-DC 24VIN 1-OUT 5V 0.4A 2W 10-Pin SOP Tube 47.658
>PTV12010WAH PTV12010WAH NATIONAL SEMICONDUCTOR - Module DC-DC 12VIN 1-OUT 1.2V to 5.5V 8A 8-Pin SIP Module Tray 29
>PTV12010LAH PTV12010LAH NATIONAL SEMICONDUCTOR - Module DC-DC 12VIN 1-OUT 0.8V to 1.8V 8A 8-Pin SIP Module Tray 25.56
>TPSM84A21MOJT TPSM84A21MOJT NATIONAL SEMICONDUCTOR - Module DC-DC 1-OUT 0.508V to 1.35V 10A 20-Pin QFM T/R 32.599
>LMZ10504TZ-ADJ/NOPB LMZ10504TZ-ADJ/NOPB NATIONAL SEMICONDUCTOR - Surface Mount Module DC-DC 1-OUT 0.8V to 5V 4A 20W 7-Pin TO-PMOD EP T/R 21.805
>TPS8268120SIPT TPS8268120SIPT NATIONAL SEMICONDUCTOR - 9 Module DC-DC 1-OUT 1.2V 1.6A 9-Pin uSIP T/R 7.9997
>PTN78020AAZ PTN78020AAZ NATIONAL SEMICONDUCTOR - 7 Module DC-DC 1-OUT -3V to -15V 4A 25W Automotive 7-Pin SMD Module Tray 50.1615
Someone has searched this part IC Chips and others have searched some relevant parts as the following:
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 1-OUT 15V 1A 3-Pin(3+2Tab) SIP Module
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 1-OUT 3.3V 2A 3-Pin SIP Module
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 1-OUT -12V -1.5A 3-Pin SIP Module
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 5VIN 1-OUT 0.8V to 3.6V 15A 10-Pin SMD Module Tray
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 1-OUT 0.9V to 5.5V 2.25A 6-Pin DIP Module Tray
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 24VIN 1-OUT 5V 0.2A 1W 7-Pin PDIP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 5VIN 1-OUT 12V 0.083A 1W 7-Pin SOP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 5VIN 2-OUT 6.5V/-6.5V 0.07A 1W 7-Pin PDIP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 12VIN 1-OUT 5V 0.4A 2W 10-Pin PDIP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 5VIN 2-OUT 12V/-12V 0.041A/-0.041A 1W 7-Pin SOP T/R
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 5VIN 2-OUT 15V/-15V 0.033A/-0.033A 1W 7-Pin SOP T/R
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 5VIN 2-OUT 5V/-5V 0.1A/-0.1A 1W 7-Pin SOP T/R
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 15VIN 1-OUT 15V 0.133A 2W 7-Pin PDIP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 5VIN 1-OUT 9V 0.222A 2W 12-Pin SOP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 12VIN 1-OUT 5V 0.4A 2W 12-Pin SOP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 15VIN 2-OUT 12V/-12V 0.083A 0.97W 7-Pin PDIP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 15VIN 2-OUT 15V/-15V 0.066A 0.97W 7-Pin PDIP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 5VIN 1-OUT 15V 0.066A 0.97W 7-Pin PDIP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 24VIN 1-OUT 5V 0.4A 2W 10-Pin SOP Tube
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 12VIN 1-OUT 1.2V to 5.5V 8A 8-Pin SIP Module Tray
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 12VIN 1-OUT 0.8V to 1.8V 8A 8-Pin SIP Module Tray
NATIONAL SEMICONDUCTOR
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NO
Module DC-DC 1-OUT 0.508V to 1.35V 10A 20-Pin QFM T/R
NATIONAL SEMICONDUCTOR
Surface Mount
NO
Module DC-DC 1-OUT 0.8V to 5V 4A 20W 7-Pin TO-PMOD EP T/R
NATIONAL SEMICONDUCTOR
9
NO
Module DC-DC 1-OUT 1.2V 1.6A 9-Pin uSIP T/R
NATIONAL SEMICONDUCTOR
7
NO
Module DC-DC 1-OUT -3V to -15V 4A 25W Automotive 7-Pin SMD Module Tray

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