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LM2575BT Datenblatt(PDF) 3 Page - Micrel Semiconductor |
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LM2575BT Datenblatt(HTML) 3 Page - Micrel Semiconductor |
3 / 9 page April 2005 3 M9999-042205 LM2575 Micrel, Inc. Electrical Characteristics Specifications with standard typeface are for T J = 25°C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, V IN = 12V, and ILOAD = 200mA. LM2575 Symbol Parameter Conditions Typ Limit Units (Note 2) (Limits) SYSTEM PARAMETERS, ADJUSTABLE REGULATORS (Note 3) Test Circuit Figure 1 V OUT Feedback Voltage V IN = 12V , ILOAD = 0.2A 1.230 V V OUT = 5V 1.217 V(min) 1.243 V(max) V OUT Feedback Voltage 0.2A ≤ ILOAD ≤ 1A, 8V ≤ VIN ≤ 40V 1.230 V LM2575 V OUT = 5V 1.193/1.180 V(min) 1.267/1.280 V(max) η Efficiency V IN = 12V, ILOAD = 1A, VOUT = 5V 82 % SYSTEM PARAMETERS, 3.3V REGULATORS (Note 3) Test Circuit Figure 1 V OUT Output Voltage V IN = 12V , ILOAD = 0.2A 3.3 V V OUT = 3.3V 3.234 V(min) 3.366 V(max) V OUT Output Voltage 0.2A ≤ ILOAD ≤ 1A, 8V ≤ VIN ≤ 40V 3.3 V LM2575-3.3 V OUT = 3.3V 3.168/3.135 V(min) 3.432/3.465 V(max) η Efficiency V IN = 12V, ILOAD = 1A 75 % SYSTEM PARAMETERS, 5V REGULATORS (Note 3) Test Circuit Figure 1 V OUT Output Voltage V IN = 12V , ILOAD = 0.2A 5.0 V V OUT = 5V 4.900 V(min) 5.100 V(max) V OUT Output Voltage 0.2A ≤ ILOAD ≤ 1A, 8V ≤ VIN ≤ 40V 5.0 V LM2575-5.0 V OUT = 5V 4.800/4.750 V(min) 5.200/5.250 V(max) η Efficiency V IN = 12V, ILOAD = 1A 82 % SYSTEM PARAMETERS, 12V REGULATORS (Note 3) Test Circuit Figure 1 V OUT Output Voltage V IN = 25V , ILOAD = 0.2A 12 V V OUT = 12V 11.760 V(min) 12.240 V(max) V OUT Output Voltage 0.2A ≤ ILOAD ≤ 1A, 15V ≤ VIN ≤ 40V 12 V LM2575-12 V OUT = 12V 11.520/11.400 V(min) 12.480/12.600 V(max) η Efficiency V IN = 25V, ILOAD = 1A 88 % Absolute Maximum Ratings (Note 1) Maximum Supply Voltage 45V ON/OFF Pin Input Voltage –0.3V ≤ V ≤ +40V Output Voltage to Ground (Steady State) –1V Power Dissipation Internally Limited Storage Temperature Range –65°C to +150°C Minimum ESD Rating C = 100pF, R = 1.5kΩ 2 kV FB Pin 1 kV Lead Temperature (soldering, 10 sec.) 260°C Maximum Junction Temperature 150°C Operating Ratings Temperature Range –40°C ≤ T J ≤ +125°C Supply Voltage 40V |
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