National Semiconductor part numbers

National Semiconductor (LM op amps and regulators, LMV/LMH/LMP amplifiers, LP power ICs, DS90 LVDS, DP83 Ethernet PHYs, ADC08/ADC12 converters) was acquired by Texas Instruments in 2011.

National Semiconductor is now Texas Instruments (2011). We quote National Semiconductor parts — current, obsolete and end-of-life — and parts that carry older National Semiconductor markings. See also all Texas Instruments part numbers.

5,372 National Semiconductor heritage part numbers

Part-number families from National Semiconductor, listed under their current manufacturer.

Part numberManufacturerTypePackageKey specs
LM3633 Texas Instruments DC-DC converter IC
LM3639A Texas Instruments DC-DC converter IC
LM3642 Texas Instruments driver IC
LM3642TLE-LT/NOPB Texas Instruments LED Drivers DSBGA-9 4MHz1.5A
LM3643 Texas Instruments driver IC
LM3643AYFFR Texas Instruments LED Drivers DSBGA-12 4MHz, 2MHz1.5A
LM3643YFFR Texas Instruments LED Drivers DSBGA-12 4MHz1.5A
LM3644 Texas Instruments driver IC
LM3644TTYFFR Texas Instruments LED Drivers DSBGA-12 4MHz, 2MHz1.5A
LM3644YFFR Texas Instruments LED Drivers DSBGA-12 4MHz1.5A
LM3645 Texas Instruments DC-DC converter IC
LM3648 Texas Instruments driver IC
LM3648TTYFFR Texas Instruments LED Drivers DSBGA-12 4MHz1.5A
LM3648YFFR Texas Instruments LED Drivers DSBGA-12 4MHz1.5A
LM3658 Texas Instruments battery management IC
LM3658SD-A/NOPB Texas Instruments Battery Management WSON-10(3x3) 4.2V1A
LM3658SDX-A/NOPB Texas Instruments Battery Management WSON-10(3x3) 4.2V1A
LM3658SDX/NOPB Texas Instruments Battery Management WSON-10(3x3) 4.2V1A
LM3668 Texas Instruments power management IC
LM3668SD-2833/NOPB Texas Instruments DC-DC Converters WSON-12-EP(3x3) 2.2MHz1A
LM3668SD-3034/NOPB Texas Instruments DC-DC Converters WSON-12(3x3) 2.2MHz1A
LM3670 Texas Instruments DC-DC converter IC
LM3670MF-3.3/NOPB Texas Instruments DC-DC Converters SOT-23-5 1MHz350mA
LM3670MFX-ADJ/NOPB Texas Instruments DC-DC Converters SOT-23-5 1MHz350mA
LM3671 Texas Instruments DC-DC converter IC
LM3671MF-1.25/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3671MF-1.375/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3671MF-1.8/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3671MF-2.5/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3671MF-2.8/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3671MF-3.3/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3671MF-ADJ/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3671MFX-1.2/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3671MFX-1.8/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3671MFX-3.3/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3671-Q1 Texas Instruments DC-DC converter IC
LM3671TLX-ADJ Texas Instruments DC-DC Converters DSBGA-5(1.2x1.5) 2MHz600mA
LM3673 Texas Instruments DC-DC converter IC
LM3674 Texas Instruments DC-DC converter IC
LM3674MF-1.2/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3674MF-1.8/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3674MF-ADJ/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3674MFX-ADJ/NOPB Texas Instruments DC-DC Converters SOT-23-5 2MHz600mA
LM3676 Texas Instruments DC-DC converter IC
LM3677 Texas Instruments DC-DC converter IC
LM3677TLX-1.8/NOPB Texas Instruments DC-DC Converters DSBGA-5(1.41x1.08) 3MHz600mA
LM3678 Texas Instruments DC-DC converter IC
LM3679 Texas Instruments DC-DC converter IC
LM3686 Texas Instruments DC-DC converter IC
LM3687 Texas Instruments DC-DC converter IC
LM3691 Texas Instruments DC-DC converter IC
LM36922 Texas Instruments driver IC
LM36922H Texas Instruments DC-DC converter IC
LM36922YFFR Texas Instruments LED Drivers DSBGA-12 1MHz, 500kHz25mA
LM36923 Texas Instruments DC-DC converter IC
LM36923H Texas Instruments DC-DC converter IC
LM3697 Texas Instruments DC-DC converter IC
LM3699 Texas Instruments DC-DC converter IC
LM3704 Texas Instruments supervisor / reference IC
LM3704XCMM-308/NOPB Texas Instruments Supervisor And Reset ICs VSSOP-10-0.5mm 128uA

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Frequently asked questions

Is National Semiconductor still in business?

National Semiconductor (LM op amps and regulators, LMV/LMH/LMP amplifiers, LP power ICs, DS90 LVDS, DP83 Ethernet PHYs, ADC08/ADC12 converters) was acquired by Texas Instruments in 2011.

Can I still buy National Semiconductor parts?

Yes. PartnerSemi quotes National Semiconductor part numbers, including obsolete and end-of-life parts and parts with old National Semiconductor markings. Send the part number and quantity; we reply with price, lead time, date code and origin. We are an independent distributor, not an authorized National Semiconductor or Texas Instruments distributor.

PartnerSemi is not affiliated with National Semiconductor or Texas Instruments. Brand names are used to identify parts only.