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LT1965EDD-TRPBF Datasheet(PDF) 5 Page - Linear Technology |
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LT1965EDD-TRPBF Datasheet(HTML) 5 Page - Linear Technology |
5 / 20 page LT1965 Series 5 1965fa ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Absolute maximum input to output differential voltage is not achievable with all combinations of rated IN pin and OUT pin voltages. With the IN pin at 22V, the OUT pin may not be pulled below 0V. The total measured voltage from IN to OUT must not exceed ±22V. Note 3: The LT1965 regulators are tested and specified under pulse load conditions such that TJ ≅ TA. The LT1965E regulators are 100% tested at TA = 25°C. Performance at –40°C and 125°C is assured by design, characterization, and correlation with statistical process controls. The LT1965I regulators are guaranteed over the full –40°C to 125°C operating junction temperature range. Note 4: The LT1965 adjustable version is tested and specified for these conditions with the ADJ connected to the OUT pin. Note 5: Maximum junction temperature limits operating conditions. The regulated output voltage specification does not apply for all possible combinations of input voltage and output current. Limit the output current range if operating at the maximum input voltage. Limit the input-to-output voltage differential if operating at the maximum output current. Note 6: To satisfy minimum input voltage requirements, the LT1965 adjustable version is tested and specified for these conditions with an external resistor divider (bottom 4.02k, top 4.32k) for an output voltage of 2.5V. The external resistor divider adds 300μA of output DC load current. This external current is not factored into GND pin current. Note 7: Dropout voltage is the minimum input-to-output voltage differential needed to maintain regulation at a specified output current. In dropout, the output voltage equals: (VIN – VDROPOUT) Note 8: GND pin current is tested with VIN = VOUT(NOMINAL) + 1V and a current source load. GND pin current increases slightly in dropout. For the fixed output versions, an internal resistor divider will typically add 100μA to the GND pin current. See GND pin current curves in the Typical Performance Characteristics section. Note 9: ADJ pin bias current flows into the ADJ pin. Note 10: SHDN pin current flows into the SHDN pin. Note 11: Reverse output current is tested with the IN pin grounded and the OUT pin forced to the rated output voltage. This current flows into the OUT pin and out of the GND pin. Note 12: For the LT1965, LT1965-1.5 and LT1965-1.8, the minimum input voltage specification limits the dropout voltage under some output voltage/load conditions. Note 13: This IC includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125°C when overtemperature is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. PARAMETER CONDITIONS MIN TYP MAX UNITS Current Limit VIN = 7V, VOUT = 0 VIN = VOUT(NOMINAL) + 1V, ΔVOUT = -0.1V (Note 6) l 1.2 2.4 A A Input Reverse Leakage Current VIN = –20V, VOUT = 0 1 mA Reverse Output Current (Note 11) LT1965-1.5, VOUT = 1.5V, VIN = 0 LT1965-1.8, VOUT = 1.8V, VIN = 0 LT1965-2.5, VOUT = 2.5V, VIN = 0 LT1965-3.3, VOUT = 3.3V, VIN = 0 LT1965 (Note 4), VOUT = 1.2V, VIN = 0 275 275 275 275 175 525 525 525 525 400 μA μA μA μA μA The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) |
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