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
LM2940CT-12/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1A12V
LM2940CT-15/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1A15V
LM2940CT-5.0/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1A5V
LM2940IMP-12/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-223-4 1A12V
LM2940IMP-15/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-223-3 1A15V
LM2940IMP-5.0/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-223-4 1A5V
LM2940IMP-9.0/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-223-4 1A9V
LM2940S-5.0/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-263-3 1A5V
LM2940S-9.0/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-263-3 1A9V
LM2940SX-12/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-263-3 1A12V
LM2940SX-5.0/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-263-3 1A5V
LM2940T-10.0/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1A10V
LM2940T-5.0/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1A5V
LM2941 Texas Instruments linear voltage regulator
LM2941C Texas Instruments linear voltage regulator
LM2941CSX/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators DDPAK-5(TO-263-5) 1A5V~20V
LM2941SX/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators DDPAK-5(TO-263-5) 1A5V~20V
LM2941T/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220-5 1A5V~20V
LM2990 Texas Instruments linear voltage regulator
LM2990S-5.0/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators DDPAK-3(TO-263-3) 1A5V
LM2990SX-12/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators DDPAK-3(TO-263-3) 1.8A, 1A12V
LM2990T-5.0/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1A5V
LM2991 Texas Instruments linear voltage regulator
LM2991S/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-263-5 1A3V~24V
LM2991SX/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-263-5 1A3V~24V
LM3100 Texas Instruments DC-DC converter IC
LM3100MH/NOPB Texas Instruments DC-DC Converters HTSSOP-20-EP 1MHz1.5A
LM3100MHX/NOPB Texas Instruments DC-DC Converters HTSSOP-20-EP 1MHz1.5A
LM3102 Texas Instruments power management IC
LM3102MH/NOPB Texas Instruments DC-DC Converters HTSSOP-20-EP 1MHz2.5A
LM3102MHX/NOPB Texas Instruments DC-DC Converters HTSSOP-20-EP 1MHz2.5A
LM3102QMH/NOPB Texas Instruments DC-DC Converters HTSSOP-20-EP 1MHz2.5A
LM3103 Texas Instruments power management IC
LM3103MH/NOPB Texas Instruments DC-DC Converters HTSSOP-16-EP 1MHz750mA
LM311 Texas Instruments amplifier IC
LM311DR Texas Instruments Comparators SOIC-8 ±15V1
LM311M/NOPB Texas Instruments Comparators SOIC-8 -18V~-2.5V, 2.5V~18V1
LM311MX/NOPB Texas Instruments Comparators SOIC-8 ±15V1
LM311-N Texas Instruments amplifier IC
LM311N/NOPB Texas Instruments Comparators PDIP-8 ±15V1
LM311P Texas Instruments Comparators PDIP-8 ±15V1
LM3150 Texas Instruments DC-DC converter IC
LM3150MHX/NOPB Texas Instruments DC-DC Converters HTSSOP-14-EP 1MHz12A
LM3153 Texas Instruments power management IC
LM3153MH-3.3/NOPB Texas Instruments DC-DC Controllers HTSSOP-14-EP 750kHz12A
LM317 Texas Instruments linear voltage regulator
LM317A Texas Instruments linear voltage regulator
LM317AEMP/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-223-4 1A1.2V~37V
LM317AEMPX/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-223-4 1.5A1.25V~37V
LM317AMDTX/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-252-3 1.5A1.25V~37V
LM317AT Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1.5A1.25V~37V
LM317AT/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1.5A1.25V~37V
LM317DCYR Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-223-4 1.5A1.25V~37V
LM317EMP/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-223-4 1.5A1.25V~37V
LM317EMPX/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-223-4 1.5A1.25V~37V
LM317HV Texas Instruments linear voltage regulator
LM317HV-MIL Texas Instruments linear voltage regulator
LM317HVT/NOPB Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1.5A1.25V~57V
LM317KCS Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220 1.5A1.25V~37V
LM317KCT Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TO-220-3 1.5A1.25V~37V

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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.