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LM2599T-12 Folha de dados(PDF) 3 Page - National Semiconductor (TI) |
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LM2599T-12 Folha de dados(HTML) 3 Page - National Semiconductor (TI) |
3 / 31 page LM2599-12 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 LM2599-12 Units (Limits) Typ Limit (Note 4) (Note 5) SYSTEM PARAMETERS (Note 6) Test Circuit Figure 1 V OUT Output Voltage 15V ≤ V IN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A 12 V 11.52/11.40 V(min) 12.48/12.60 V(max) η Efficiency V IN = 25V, ILOAD = 3A 90 % LM2599-ADJ Electrical Characteristics Specifications with standard type face are for T J = 25˚C, and those with boldface type apply over full Operating Temperature Range. Symbol Parameter Conditions LM2599-ADJ Units (Limits) Typ Limit (Note 4) (Note 5) SYSTEM PARAMETERS (Note 6) Test Circuit Figure 1 V FB Feedback Voltage 4.5V ≤ V IN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A 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 = 3A 73 % All Output Voltage Versions 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. Unless otherwise specified, V IN = 12V for the 3.3V, 5V, and Adjustable version and VIN = 24V for the 12V ver- sion. I LOAD = 500 mA Symbol Parameter Conditions LM2599-XX Units (Limits) Typ Limit (Note 4) (Note 5) DEVICE PARAMETERS I b Feedback Bias Current Adjustable Version Only, V FB = 1.3V 10 nA 50/100 nA (max) f O Oscillator Frequency (Note 7) 150 kHz 127/110 kHz(min) 173/173 kHz(max) V SAT Saturation Voltage I OUT = 3A (Note 8) (Note 9) 1.16 V 1.4/1.5 V(max) DC Max Duty Cycle (ON) (Note 9) 100 % Min Duty Cycle (OFF) (Note 10) 0 I CL Current Limit Peak Current, (Note 8) (Note 9) 4.5 A 3.6/3.4 A(min) 6.9/7.5 A(max) I L Output Leakage Current (Note 8) (Note 10) (Note 11) Output = 0V 50 µA(max) Output = −1V 2 mA 30 mA(max) I Q Operating Quiescent SD /SS Pin Open (Note 10) 5mA Current 10 mA(max) www.national.com 3 |
Nº de peça semelhante - LM2599T-12 |
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Descrição semelhante - LM2599T-12 |
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