LT3086 e lecTrical characTerisTics The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. PARAMETERCONDITIONSMINTYPMAXUNITS GND Pin Current ILOAD = 0µA l 1.2 2.4 mA VIN = VOUT(NOMINAL) + 0.55V, (Notes 7, ILOAD = 1mA l 1.3 2.6 mA 9) ILOAD = 100mA l 1.8 3.6 mA ILOAD = 500mA l 4.5 9 mA ILOAD = 1.5A l 23 46 mA ILOAD = 2.1A l 44 88 mA Quiescent Current in Shutdown VIN = 40V, VSHDN = 0V 0.1 1 µA Output Voltage Noise CSET = 0.01µF , COUT = 10µF, ILOAD = 2.1A 40 µVRMS VOUT = 5V, BW = 10Hz to 100kHz Shutdown Threshold VOUT = Off to On l 1.12 1.22 1.32 V VOUT = On to Off l 0.85 1.03 V SHDN Pin Current (Note 10) VSHDN = 0V l 1 µA 1.55V < VIN < 40V VSHDN = 40V l 15 35 µA TEMP Voltage (Note 13) TJ = 25°C 0.25 V TJ = 125°C 1.25 V TEMP Error (Note 13) 0°C < TJ < 125°C, ITEMP = 0 –0.09 0.09 V 0°C < TJ < 125°C, ITEMP = 0µA to 80µA –0.1 V ITEMP Thermal Limit Current Threshold 25°C < TJ < 125°C 95 100 105 µA IMON Output Current ILOAD = 20mA, RMON = 1kΩ l 5 20 75 µA VIN = VOUT(NOMINAL) + 0.55V (Note 15) ILOAD = 500mA, RMON = 330Ω l 440 500 560 µA ILOAD = 1A, RMON = 330Ω l 0.95 1.00 1.05 mA ILOAD = 1.5A, RMON = 330Ω l 1.43 1.50 1.57 mA ILOAD = 2.1A, RMON = 330Ω l 2.02 2.10 2.18 mA Output Current Sharing Error (Note 14) RMON = 330Ω, IOUT(MASTER) = 2.1A –10 0 10 % TRACK Pin Pull-Up Current VTRACK = 750mV l 7 15 25 µA RPWRGD Reference Voltage 1.55V < VIN < 40V l 390 400 410 mV RPWRGD Reference Current 1.55V < VIN < 40V l 48.75 50 51.25 µA RPWRGD Reference Voltage Hysteresis 1.55V < VIN < 40V 2.4 mV RPWRGD Reference Current Hysteresis 1.55V < VIN < 40V 300 nA PWRGD VOL IPWRGD = 200µA (Fault Condition) l 55 200 mV PWRGD Internal Time Delay VOL TO VOH (Rising Edge) l 8 17 25 µs PWRGD Pin Leakage Current VPWGRD = 32V, VRPWGRD = 500mV l 1 µA CDC Reference Voltage 1.55V < VIN < 40V, IMON = 0V l 390 400 410 mV CDC/VIMON Voltage Gain 1.55V < VIN < 40V, 0 < ICDC < 20µA, VIMON = 800mV to 0 l 0.320 0.333 0.343 V/V Ripple Rejection VIN = 1.9V (AVG), VRIPPLE = 0.5VP-P, VOUT = 1V 65 80 dB fRIPPLE = 120Hz, ILOAD = 2.1A Internal Current Limit VIN = 1.55V l 2.2 2.4 2.9 A VIN = VOUT(NOMINAL) + 0.55V (Notes 7, 12), ∆VOUT = –5% l 2.2 A ILIM Threshold Voltage 1.55V < VIN < 40V l 775 800 825 mV Input Reverse-Leakage Current VIN = –40V, VOUT = 0 l 2 mA Reverse-Output Current (Note 11) VOUT = 32V, VIN = 0, VSHDN = 0 1 10 µA Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 3: The LT3086 is tested and specified under pulse load conditions may cause permanent damage to the device. Exposure to any Absolute such that TJ ≅ TA. The LT3086E is 100% production tested at TA = 25°C Maximum Rating condition for extended periods may affect device and performance is guaranteed from 0°C to 125°C. Specifications over reliability and lifetime. the –40°C to 125°C operating junction temperature range are assured by Note 2: Absolute maximum input-to-output differential voltage is not design, characterization and correlation with statistical process controls. achievable with all combinations of rated IN pin and OUT pin voltages. The LT3086I is guaranteed over the full –40°C to 125°C operating junction With the IN pin at 45V, the OUT pin may not be pulled below 0V. The total temperature range. The LT3086MP is 100% tested over the –55°C to IN to OUT differential voltage must not exceed ±45V. 125°C operating junction temperature range. The LT3086H is 100% tested 3086fb 4 For more information www.linear.com/LT3086 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
