Datasheet LT3066 (Analog Devices) - 4

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ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C (Note 3). PARAMETER CONDITIONS MIN TYP MAX UNITS
External Programmed Current Limit RIMAX = 1.5k, VOUT = 95% of VOUT(NOMINAL) l 180 200 220 mA (Notes 7, 13) VOUT(NOMINAL) + 0.6V < VIN < VOUT(NOMINAL)+ 5V RIMAX = 604Ω, VOUT = 95% of VOUT(NOMINAL) l 445 495 545 mA VOUT(NOMINAL) + 0.6V < VIN < VOUT(NOMINAL) + 2V PWRGD Logic Low Voltage Pull-Up Current = 50µA l 0.07 0.25 V PWRGD Leakage Current VPWRGD = 5V 0.01 1 µA PWRGD Trip Point % of Nominal Output Voltage, Output Rising l 86 90 94 % PWRGD Trip Point Hysteresis % of Nominal Output Voltage 1.6 %
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 7:
To satisfy minimum input voltage requirements, the LT3066 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 (60.4k bottom, 442k top) which sets VOUT to reliability and lifetime. 5V. The divider adds 10uA of output DC load. This external current is
Note 2:
Absolute maximum input-to-output differential voltage is not not factored into GND pin current. For fixed voltage options, an internal achievable with all combinations of rated IN pin and OUT pin voltages. resistor divider will add 5μA to the GND pin current. See the GND Pin With IN at 50V, do not pull OUT below 0V. If OUT is pulled above IN and Current curves in the Typical Performance Characteristics section GND, the OUT to IN differential voltage must not exceed 40V.
Note 8:
GND pin current is tested with VIN = VOUT(NOMINAL) + 0.6V and a
Note 3:
The LT3066 regulator is tested and specified under pulse current source load. GND pin current increases in dropout. See GND pin load conditions such that T current curves in the Typical Performance Characteristics section. J ≅ TA. The LT3066E regulators are 100% tested at TA = 25°C and performance is guaranteed from 0°C to 125°C.
Note 9:
To satisfy requirements for minimum input voltage, the LT3066 is Performance at –40°C to 125°C is assured by design, characterization and tested at VIN = VOUT(NOMINAL) + 1V or VIN = 2.2V, whichever is greater. correlation with statistical process controls. The LT3066I regulators are
Note 10:
ADJ pin bias current flows out of the ADJ pin. guaranteed over the full –40°C to 125°C operating junction temperature
Note 11:
SHDN pin current flows into the SHDN pin. range. High junction temperatures degrade operating lifetimes. Operating lifetime is derated at junction temperatures greater than 125°C.
Note 12:
This current flows into the OUT pin and out of the GND pin.
Note 4:
The LT3066 adjustable version is tested and specified for these
Note 13:
Current limit varies inversely with the external resistor value conditions with the ADJ pin connected to the OUT pin. tied from the IMAX pin to GND. If the externally programmed current limit feature is unused, tie the IMAX pin to GND. The internal current limit
Note 5:
Maximum junction temperature limits operating conditions. circuitry implements short-circuit protection as specified. Regulated output voltage specifications do not apply for all possible combinations of input voltage and output current. If operating at the
Note 14:
This IC includes over temperature protection that protects maximum input voltage, limit the output current range. If operating at the device during overload conditions. Junction temperature exceeds the maximum output current, limit the input voltage range. Current limit 125°C (LT3066E, LT3066I) when the over temperature circuitry is active. foldback limits the maximum output current as a function of input-to- Continuous operation above the specified maximum junction temperature output voltage. See Current Limit vs V may impair device reliability. IN – VOUT in the Typical Performance Characteristics section.
Note 15:
Tie INFILT directly to IN or to a decoupling capacitor.
Note 6:
Dropout voltage is the minimum IN-to-OUT differential voltage needed to maintain regulation at a specified output current. In dropout, the output voltage equals (VIN – VDROPOUT). For some output voltages, minimum input voltage requirements limit dropout voltage. Rev. B 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts