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
LM51770-Q1 Texas Instruments DC-DC converter IC
LM51772 Texas Instruments DC-DC converter IC
LM51772-Q1 Texas Instruments DC-DC converter IC
LM5177DCPR Texas Instruments DC-DC Converters HTSSOP-38 100kHz~600kHz3.3V~60V
LM5180 Texas Instruments DC-DC converter IC
LM5180-Q1 Texas Instruments DC-DC converter IC
LM5181 Texas Instruments DC-DC converter IC
LM5181-Q1 Texas Instruments DC-DC converter IC
LM5185 Texas Instruments DC-DC converter IC
LM5185-Q1 Texas Instruments DC-DC converter IC
LM5190 Texas Instruments DC-DC converter IC
LM5190-Q1 Texas Instruments DC-DC converter IC
LM5192 Texas Instruments DC-DC converter IC
LM5192-Q1 Texas Instruments DC-DC converter IC
LM536005QDSXRQ1 Texas Instruments DC-DC Converters WSON-10(3x3) 2.1MHz650mA
LM536005QDSXTQ1 Texas Instruments DC-DC Converters WSON-10-EP(3x3) 2.1MHz650mA
LM53600NQDSXTQ1 Texas Instruments DC-DC Converters WSON-10-EP(3x3) 2.1MHz650mA
LM53600-Q1 Texas Instruments DC-DC converter IC
LM53601-Q1 Texas Instruments DC-DC converter IC
LM53602 Texas Instruments DC-DC converter IC
LM53602-Q1 Texas Instruments DC-DC converter IC
LM53603 Texas Instruments power management IC
LM536033QPWPTQ1 Texas Instruments AC-DC Controllers & Regulators HTSSOP-16-EP 2.1MHz3A
LM53603-Q1 Texas Instruments DC-DC converter IC
LM53625MQRNLTQ1 Texas Instruments DC-DC Converters VQFN-22(4x5) 2.1MHz2.5A
LM53625-Q1 Texas Instruments DC-DC converter IC
LM53635-Q1 Texas Instruments DC-DC converter IC
LM555 Texas Instruments logic IC
LM555CMX Texas Instruments Timer SOIC-8
LM555CMX/NOPB Texas Instruments Timers / Counters SOIC-8 200mA3mA
LM555-MIL Texas Instruments DC-DC converter IC
LM555QML Texas Instruments DC-DC converter IC
LM556CM Texas Instruments Timers / Counters SOP-14
LM5574 Texas Instruments DC-DC converter IC
LM5574MT/NOPB Texas Instruments DC-DC Converters TSSOP-16 500kHz500mA
LM5574MTX/NOPB Texas Instruments DC-DC Converters TSSOP-16 500kHz500mA
LM5574Q0MT/NOPB Texas Instruments DC-DC Converters TSSOP-16 500kHz500mA
LM5574-Q1 Texas Instruments DC-DC converter IC
LM5574QMT/NOPB Texas Instruments DC-DC Converters TSSOP-16-4.3mm 500kHz500mA
LM5574QMTX/NOPB Texas Instruments DC-DC Converters TSSOP-16 500kHz500mA
LM5575 Texas Instruments power management IC
LM5575MH/NOPB Texas Instruments DC-DC Converters TSSOP-16-EP 500kHz1.5A
LM5575MHX/NOPB Texas Instruments DC-DC Converters HTSSOP-16-EP 500kHz1.5A
LM5575-Q1 Texas Instruments DC-DC converter IC
LM5575QMH/NOPB Texas Instruments DC-DC Converters HTSSOP-16-EP 500kHz1.5A
LM5576 Texas Instruments DC-DC converter IC
LM5576MH/NOPB Texas Instruments DC-DC Converters HTSSOP-20-EP 500kHz3A
LM5576MHX Texas Instruments DC-DC Converters HTSSOP-20-EP 50kHz~500kHz3A
LM5576MHX/NOPB Texas Instruments DC-DC Converters HTSSOP-20-EP 500kHz3A
LM5576Q0MH/NOPB Texas Instruments DC-DC Converters HTSSOP-20-EP 500kHz3A
LM5576-Q1 Texas Instruments DC-DC converter IC
LM5576QMH/NOPB Texas Instruments DC-DC Converters HTSSOP-20-EP 500kHz3A
LM56 Texas Instruments DC-DC converter IC
LM5642 Texas Instruments DC-DC converter IC
LM5642MTCX/NOPB Texas Instruments DC-DC Converters TSSOP-28 200kHz1.3V~32.4V
LM5642X Texas Instruments DC-DC converter IC
LM5642XMHX/NOPB Texas Instruments DC-DC Converters HTSSOP-28-EP 375kHz4.5V~36V
LM567C Texas Instruments interface IC
LM567CMX/NOPB Texas Instruments Telecom Interface ICs SOIC-8 8mA-20°C~+120°C
LM57 Texas Instruments DC-DC converter IC

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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.