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LT1581-2.5 Datasheet(PDF) 2 Page - Linear Technology |
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LT1581-2.5 Datasheet(HTML) 2 Page - Linear Technology |
2 / 12 page 2 LT1581/LT1581-2.5 ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION ELECTRICAL CHARACTERISTICS PRECONDITIONING 100% Thermal Limit Functional Test Consult factory for Industrial and Military grade parts. LT1581CT7 LT1581CT7-2.5 ORDER PART NUMBER (Note 1) VPOWER Input Voltage ................................................ 6V VCONTROL Input Voltage ........................................... 13V Operating Junction Temperature Range Control Section ...................................... 0 °C to 125°C Power Transistor ................................... 0 °C to 150°C Storage Temperature ............................ – 65 °C to 150°C Lead Temperature (Soldering, 10 sec) .................. 300 °C *PIN2 = NC FOR LT1581CT7, GND FOR LT1581CT7-2.5 T7 PACKAGE 7-LEAD PLASTIC TO-220 FRONT VIEW TAB IS OUTPUT NC VCONTROL VPOWER OUTPUT SENSE NC/GND* ADJUST 7 6 5 4 3 2 1 θJA = 50°C/ W The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS Output Voltage: LT1581-2.5 VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 0mA 2.485 2.500 2.515 V VCONTROL = 4V to 12V, VPOWER = 3V to 5.5V, ILOAD = 0mA to 4A q 2.475 2.500 2.525 V VCONTROL = 4V to 12V, VPOWER = 3.3V to 5.5V, ILOAD = 0mA to 10A q 2.475 2.500 2.525 V Reference Voltage: LT1581 VCONTROL = 2.75V, VPOWER = 2V, ILOAD = 10mA 1.243 1.250 1.257 V (VADJ = 0V) VCONTROL = 2.7V to 12V, VPOWER = 1.75V to 5.5V, ILOAD = 0mA to 4A q 1.237 1.250 1.263 V VCONTROL = 2.7V to 12V, VPOWER = 2.05V to 5.5V, ILOAD = 0mA to 10A q 1.237 1.250 1.263 V Line Regulation: LT1581-2.5 VCONTROL = 3.65V to 12V, VPOWER = 3V to 5.5V, ILOAD = 10mA q 13 mV LT1581 VCONTROL = 2.5V to 12V, VPOWER = 1.75V to 5.5V, ILOAD = 10mA q 13 mV Load Regulation: LT1581-2.5 VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 0mA to 10A q 110 mV LT1581 (VADJ = 0V) VCONTROL = 2.75V, VPOWER = 2.1V, ILOAD = 10mA to 10A q 15 mV Minimum Load Current: LT1581 VCONTROL = 5V, VPOWER = 3.3V, VADJ = 0V (Note 4) q 310 mA Control Pin Current: LT1581-2.5 VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 100mA q 510 mA (Note 5) VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 4A q 20 50 mA VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 7A q 40 100 mA VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 10A q 70 170 mA Control Pin Current: LT1581 VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 100mA q 510 mA (Note 5) VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 4A q 20 50 mA VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 7A q 40 100 mA VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 10A q 70 170 mA Ground Pin Current: LT1581-2.5 VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 0mA q 610 mA Adjust Pin Current: LT1581 (VADJ = 0V) VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 10mA q 60 120 µA Current Limit: LT1581-2.5 VCONTROL = 5V, VPOWER = 3.3V, ∆VOUT = 100mV q 10.1 11 A LT1581 (VADJ = 0V) VCONTROL = 2.75V, VPOWER = 2.05V, ∆VOUT = 100mV q 10.1 11 A Ripple Rejection: LT1581-2.5 VCONTROL = VPOWER = 5V Avg, VRIPPLE = 1VP-P, fRIPPLE = 120Hz, 55 80 dB IOUT = 4A, TJ = 25°C LT1581 VCONTROL = VPOWER = 3.75V Avg, VRIPPLE = 1VP-P, fRIPPLE = 120Hz, 60 80 dB VADJ = 0V, IOUT = 4A, TJ = 25°C Thermal Regulation 30ms Pulse 0.004 0.020 %/W Thermal Resistance, Junction-to-Case Control Circuitry/Power Transistor 0.65/2.50 °C/W |
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