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LM2670T-ADJ Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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LM2670T-ADJ Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 26 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Input Supply Voltage 45V ON/OFF Pin Voltage −0.1V to 6V Switch Voltage to Ground −1V to V IN Boost Pin Voltage V SW +8V Feedback Pin Voltage −0.3V to 14V Power Dissipation Internally Limited ESD (Note 2) 2 kV Storage Temperature Range −65˚C to 150˚C Soldering Temperature Wave 4 sec, 260˚C Infrared 10 sec, 240˚C Vapor Phase 75 sec, 219˚C Operating Ratings Supply Voltage 8V to 40V Junction Temperature Range (T J) −40˚C to 125˚C Electrical Characteristics Limits appearing in bold type face apply over the entire junction temperature range of operation, −40˚C to 125˚C. Specifications appearing in normal type apply for T A =TJ = 25˚C. Sync pin open circuited. LM2670-3.3 Symbol Parameter Conditions Typical Min Max Units (Note 3) (Note 4) (Note 4) V OUT Output Voltage V IN = 8V to 40V, 100mA ≤ I OUT ≤ 3A 3.3 3.234/3.201 3.366/3.399 V η Efficiency V IN = 12V, ILOAD =3A 86 % LM2670-5.0 Symbol Parameter Conditions Typical Min Max Units (Note 3) (Note 4) (Note 4) V OUT Output Voltage V IN = 8V to 40V, 100mA ≤ I OUT ≤ 3A 5.0 4.900/4.850 5.100/5.150 V η Efficiency V IN = 12V, ILOAD =3A 88 % LM2670-12 Symbol Parameter Conditions Typical Min Max Units (Note 3) (Note 4) (Note 4) V OUT Output Voltage V IN = 15V to 40V, 100mA ≤ I OUT ≤ 3A 12 11.76/11.64 12.24/12.36 V η Efficiency V IN = 24V, ILOAD =3A 94 % LM2670-ADJ Symbol Parameter Conditions Typ Min Max Units (Note 3) (Note 4) (Note 4) V FB Feedback Voltage V IN = 8V to 40V, 100mA ≤ I OUT ≤ 3A V OUT Programmed for 5V 1.21 1.186/1.174 1.234/1.246 V η Efficiency V IN = 12V, ILOAD =3A 88 % www.national.com 3 |
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