Datasheet LT1963A (Analog Devices) - 6

LT1963A Series
e lecTrical characTerisTics The
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denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS
Ripple Rejection VIN – VOUT = 1.5V (Avg), VRIPPLE = 0.5VP-P, 55 63 dB fRIPPLE = 120Hz, ILOAD = 0.75A Current Limit VIN = 7V, VOUT = 0V 2 A VIN = VOUT(NOMINAL) + 1V, ∆VOUT = –0.1V ● 1.6 A Input Reverse Leakage Current (Note 13) Q, T, S8 Packages VIN = –20V, VOUT = 0 ● 1 mA ST Package VIN = –20V, VOUT = 0 ● 2 mA Reverse Output Current (Note 11) LT1963A-1.5 VOUT = 1.5V, VIN < 1.5V 600 1200 µA LT1963A-1.8 VOUT = 1.8V, VIN < 1.8V 600 1200 µA LT1963A-2.5 VOUT = 2.5V, VIN < 2.5V 600 1200 µA LT1963A-3.3 VOUT = 3.3V, VIN < 3.3V 600 1200 µA LT1963A (Note 4) VOUT = 1.21V, VIN < 1.21V 300 600 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 6:
To satisfy requirements for minimum input voltage, the LT1963A may cause permanent damage to the device. Exposure to any Absolute (adjustable version) is tested and specified for these conditions with an Maximum Rating condition for extended periods may affect device external resistor divider (two 4.12k resistors) for an output voltage of 2.4V. reliability and lifetime. The external resistor divider will add a 300µA DC load on the output.
Note 2:
Absolute maximum input to output differential voltage can not
Note 7:
Dropout voltage is the minimum input to output voltage differential be achieved with all combinations of rated IN pin and OUT pin voltages. needed to maintain regulation at a specified output current. In dropout, the With the IN pin at 20V, the OUT pin may not be pulled below 0V. The total output voltage will be equal to: VIN – VDROPOUT. measured voltage from IN to OUT can not exceed ±20V.
Note 8:
GND pin current is tested with VIN = VOUT(NOMINAL) + 1V and a
Note 3:
The LT1963A regulators are tested and specified under pulse load current source load. The GND pin current will decrease at higher input conditions such that T voltages. J ≈ TA. The LT1963AE is 100% tested at TA = 25°C. Performance at –40°C and 125°C is assured by design, characterization and
Note 9:
ADJ pin bias current flows into the ADJ pin. correlation with statistical process controls. The LT1963AI is guaranteed
Note 10:
SHDN pin current flows into the SHDN pin. over the full –40°C to 125°C operating junction temperature range. The
Note 11:
Reverse output current is tested with the IN pin grounded and the LT1963AMP is 100% tested and guaranteed over the –55°C to 125°C OUT pin forced to the rated output voltage. This current flows into the OUT operating junction temperature range. pin and out the GND pin.
Note 4:
The LT1963A (adjustable version) is tested and specified for these
Note 12:
For the LT1963A, LT1963A-1.5 and LT1963A-1.8 dropout voltage conditions with the ADJ pin connected to the OUT pin. will be limited by the minimum input voltage specification under some
Note 5:
Operating conditions are limited by maximum junction output voltage/load conditions. temperature. The regulated output voltage specification will not apply
Note 13:
For the ST package, the input reverse leakage current increases for all possible combinations of input voltage and output current. When due to the additional reverse leakage current for the SHDN pin, which is operating at maximum input voltage, the output current range must be tied internally to the IN pin. limited. When operating at maximum output current, the input voltage range must be limited. 1963aff 6 For more information www.linear.com/LT1963A Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Applications Package Description Typical Application Revision History Related Parts