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LP2975IMM-5.0 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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LP2975IMM-5.0 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 19 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. Storage Temperature Range −65˚C to +150˚C Operating Junction Temperature Range −40˚C to +125˚C Lead Temp. (Soldering, 5 seconds) 260˚C ESD Rating 2 kV Power Dissipation (Note 2) Internally Limited Input Supply Voltage (Survival) −0.3V to +26V Input Supply Voltage (Operating) +1.8V to +24V Current Limit Pins (Survival) −0.3V to +V IN Comp Pin (Survival) −0.3V to +2V Gate Pin (Survival) −0.3V to +V IN ON/OFF Pin (Survival) −0.3V to +20V Feedback Pin (Survival) −0.3V to +24V Electrical Characteristics Limits in standard typeface are for T J = 25˚C, and limits in boldface type apply over the full operating temperature range. Un- less otherwise specified; V ON/OFF = 1.5V, VIN = 15V. Symbol Parameter Conditions Typ LM2975AI-X.X (Note 3) LM2975I-X.X (Note 3) Units Min Max Min Max V REG Regulation Voltage (12V Versions) 12.5 < V IN < 24V 12.0 11.820 12.180 11.700 12.300 V (V IN - 0.5V) > VGATE > (V IN - 5V) 11.640 12.360 11.520 12.480 Regulation Voltage (5V Versions) 5.5 < V IN < 24V 5.0 4.925 5.075 4.875 5.125 (V IN - 0.5V) > VGATE > (V IN - 4.5V) 4.850 5.150 4.800 5.200 Regulation Voltage (3.3V Versions) 3.8 < V IN < 24V 3.3 3.250 3.350 3.217 3.383 (V IN - 0.5V) > VGATE > (V IN - 3.3V) 3.201 3.399 3.168 3.432 V COMP Comp Pin Voltage V REG < VIN < 24V 1.240 1.215 1.265 1.203 1.277 V 1.209 1.271 1.196 1.284 I Q Quiescent Current V IN = 5V 180 240 240 µA 320 320 V ON/OFF = 0V 0.01 11 V CL Current Limit Sense Voltage V IN = 15V V FB =0.9XVREG 57 45 69 45 69 mV 39 72 39 72 V ON/OFF ON/OFF Threshold Output = ON 0.94 1.10 1.10 V 1.20 1.20 Output = OFF 0.87 0.70 0.70 0.40 0.40 I ON/OFF ON/OFF Input Bias Current V ON/OFF = 1.5V 34 50 50 µA 75 75 I G Gate Drive Current (Sourcing) V G = 7.5V V FB=1.1XVREG 3.5 1.3 1.3 mA 0.3 0.3 Gate Drive Current (Sinking) V G = 7.5V V FB =0.9XVREG 1100 350 350 µA 40 40 V G(MIN) Gate Clamp Voltage V IN = 24V V FB =0.9XVREG 17 15 19 15 19 V R(V IN-G) Resistance from Gate to V IN V IN = 24V V ON/OFF =0 500 k Ω Open Loop Voltage Gain V IN = 15V 0.5V ≤ V GATE ≤ 13 5000 V/V Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the de- vice outside of its rated operating conditions. Note 2: The LP2975 has internal thermal shutdown which activates at a die temperature of about 150˚C. It should be noted that the power dissipated within the LP2975 is low enough that this protection circuit should never activate due to self-heating, even at elevated ambient temperatures. www.national.com 3 |
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