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LM2671LDX-12 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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LM2671LDX-12 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. Supply Voltage 45V ON/OFF Pin Voltage −0.1V ≤ V SH ≤ 6V Switch Voltage to Ground −1V Boost Pin Voltage V SW +8V Feedback Pin Voltage −0.3V ≤ V FB ≤ 14V ESD Susceptibility Human Body Model (Note 2) 2 kV Power Dissipation Internally Limited Storage Temperature Range −65˚C to +150˚C Lead Temperature M Package Vapor Phase (60s) +215˚C Infrared (15s) +220˚C N Package (Soldering, 10s) +260˚C LLP Package (See AN-1187) Maximum Junction Temperature +150˚C Operating Ratings Supply Voltage 6.5V to 40V Temperature Range −40˚C ≤ T J ≤ +125˚C Electrical Characteristics LM2671-3.3 Specifications with standard type face are for T J = 25˚C, and those in bold type face apply over full Operating Temperature Range. Symbol Parameter Conditions Typical Min Max Units (Note 4) (Note 5) (Note 5) SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3) V OUT Output Voltage V IN = 8V to 40V, ILOAD = 20 mA to 500 mA 3.3 3.251/3.201 3.350/3.399 V V OUT Output Voltage V IN = 6.5V to 40V, ILOAD = 20 mA to 250 mA 3.3 3.251/3.201 3.350/3.399 V η Efficiency V IN = 12V, ILOAD = 500 mA 86 % LM2671-5.0 Symbol Parameter Conditions Typical Min Max Units (Note 4) (Note 5) (Note 5) SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3) V OUT Output Voltage V IN = 8V to 40V, ILOAD = 20 mA to 500 mA 5.0 4.925/4.850 5.075/5.150 V V OUT Output Voltage V IN = 6.5V to 40V, ILOAD = 20 mA to 250 mA 5.0 4.925/4.850 5.075/5.150 V η Efficiency V IN = 12V, ILOAD = 500 mA 90 % LM2671-12 Symbol Parameter Conditions Typical Min Max Units (Note 4) (Note 5) (Note 5) SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3) V OUT Output Voltage V IN = 15V to 40V, ILOAD = 20 mA to 500 mA 12 11.82/11.64 12.18/12.36 V η Efficiency V IN = 24V, ILOAD = 500 mA 94 % LM2671-ADJ Symbol Parameter Conditions Typ Min Max Units (Note 4) (Note 5) (Note 5) SYSTEM PARAMETERS Test Circuit Figure 3 (Note 3) V FB Feedback Voltage V IN = 8V to 40V, ILOAD = 20mAto500 mA 1.210 1.192/1.174 1.228/1.246 V V OUT Programmed for 5V (see Circuit of Figure 3) www.national.com 3 |
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