Datasheet LT1581, LT1581-2.5 (Analog Devices) - 2

LT1581/LT1581-2.5
W W W U U W U ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION (Note 1)
VPOWER Input Voltage .. 6V ORDER PART V FRONT VIEW CONTROL Input Voltage ... 13V NUMBER Operating Junction Temperature Range 7 NC 6 VCONTROL Control Section .. 0°C to 125°C 5 VPOWER 4 OUTPUT LT1581CT7 Power Transistor ... 0°C to 150°C 3 SENSE 2 NC/GND* LT1581CT7-2.5 Storage Temperature .. – 65°C to 150°C 1 ADJUST TAB IS Lead Temperature (Soldering, 10 sec) .. 300°C T7 PACKAGE OUTPUT 7-LEAD PLASTIC TO-220
U U U
θJA = 50°C/ W
PRECONDITIONING
*PIN2 = NC FOR LT1581CT7, GND FOR LT1581CT7-2.5 100% Thermal Limit Functional Test Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS The
●
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 ● 2.475 2.500 2.525 V VCONTROL = 4V to 12V, VPOWER = 3.3V to 5.5V, ILOAD = 0mA to 10A ● 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 ● 1.237 1.250 1.263 V VCONTROL = 2.7V to 12V, VPOWER = 2.05V to 5.5V, ILOAD = 0mA to 10A ● 1.237 1.250 1.263 V Line Regulation: LT1581-2.5 VCONTROL = 3.65V to 12V, VPOWER = 3V to 5.5V, ILOAD = 10mA ● 1 3 mV LT1581 VCONTROL = 2.5V to 12V, VPOWER = 1.75V to 5.5V, ILOAD = 10mA ● 1 3 mV Load Regulation: LT1581-2.5 VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 0mA to 10A ● 1 10 mV LT1581 (VADJ = 0V) VCONTROL = 2.75V, VPOWER = 2.1V, ILOAD = 10mA to 10A ● 1 5 mV Minimum Load Current: LT1581 VCONTROL = 5V, VPOWER = 3.3V, VADJ = 0V (Note 4) ● 3 10 mA Control Pin Current: LT1581-2.5 VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 100mA ● 5 10 mA (Note 5) VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 4A ● 20 50 mA VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 7A ● 40 100 mA VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 10A ● 70 170 mA Control Pin Current: LT1581 VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 100mA ● 5 10 mA (Note 5) VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 4A ● 20 50 mA VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 7A ● 40 100 mA VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 10A ● 70 170 mA Ground Pin Current: LT1581-2.5 VCONTROL = 5V, VPOWER = 3.3V, ILOAD = 0mA ● 6 10 mA Adjust Pin Current: LT1581 (VADJ = 0V) VCONTROL = 2.75V, VPOWER = 2.05V, ILOAD = 10mA ● 60 120 µA Current Limit: LT1581-2.5 VCONTROL = 5V, VPOWER = 3.3V, ∆VOUT = 100mV ● 10.1 11 A LT1581 (VADJ = 0V) VCONTROL = 2.75V, VPOWER = 2.05V, ∆VOUT = 100mV ● 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 2