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LM2591HVT-ADJ Datasheet(PDF) 2 Page - National Semiconductor (TI) |
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LM2591HVT-ADJ Datasheet(HTML) 2 Page - National Semiconductor (TI) |
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2 / 20 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. Maximum Supply Voltage (V IN) 63V ON/OFF Pin Voltage −0.3 ≤ V ≤ +25V Feedback Pin Voltage −0.3 ≤ V ≤ +25V Output Voltage to Ground (Steady State) −1V Power Dissipation Internally limited Storage Temperature Range −65˚C to +150˚C ESD Susceptibility Human Body Model (Note 2) 2 kV Lead Temperature S Package Vapor Phase (60 sec.) +215˚C Infrared (10 sec.) +245˚C T Package (Soldering, 10 sec.) +260˚C Maximum Junction Temperature +150˚C Operating Conditions Temperature Range −40˚C ≤ T J ≤ +125˚C Supply Voltage 4.5V to 60V LM2591HV-3.3 Electrical Characteristics Specifications with standard type face are for T J = 25˚C, and those with boldface type apply over full Operating Tempera- ture Range. Symbol Parameter Conditions LM2591HV-3.3 Units (Limits) Typ Limit (Note 3) (Note 4) SYSTEM PARAMETERS (Note 5) Test Circuit Figure 1 V OUT Output Voltage 4.75V ≤ V IN ≤ 60V, 0.2A ≤ I LOAD ≤ 1A 3.3 V 3.168/3.135 V(min) 3.432/3.465 V(max) η Efficiency V IN = 12V, ILOAD =1A 77 LM2591HV-5.0 Electrical Characteristics Specifications with standard type face are for T J = 25˚C, and those with boldface type apply over full Operating Tempera- ture Range. Symbol Parameter Conditions LM2591HV-5.0 Units (Limits) Typ Limit (Note 3) (Note 4) SYSTEM PARAMETERS (Note 5) Test Circuit Figure 1 V OUT Output Voltage 7V ≤ V IN ≤ 60V, 0.2A ≤ I LOAD ≤ 1A 5 V 4.800/4.750 V(min) 5.200/5.250 V(max) η Efficiency V IN = 12V, ILOAD =1A 82 % LM2591HV-ADJ Electrical Characteristics Specifications with standard type face are for T J = 25˚C, and those with boldface type apply over full Operating Tempera- ture Range. Symbol Parameter Conditions LM2591HV-ADJ Units (Limits) Typ Limit (Note 3) (Note 4) SYSTEM PARAMETERS (Note 5) Test Circuit Figure 1 V FB Feedback Voltage 4.5V ≤ V IN ≤ 60V, 0.2A ≤ I LOAD ≤ 1A 1.230 V V OUT programmed for 3V. Circuit of Figure 1. 1.193/1.180 V(min) 1.267/1.280 V(max) η Efficiency V IN = 12V, VOUT = 3V, ILOAD =1A 76 % www.national.com 2 |
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