Datasheet LT3030 (Analog Devices) - 4

LT3030
e lecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C (Note 2). PARAMETER CONDITIONS MIN TYP MAX UNITS
Ripple Rejection VIN = 2.72V (Avg), VRIPPLE = 0.5VP-P, 50 60 dB fRIPPLE = 120Hz, ILOAD = Full Current (Note 13) VIN = VOUT(NOMINAL) + 1V, VRIPPLE = 50mVRMS 50 dB fRIPPLE = 1MHz, ILOAD = Full Current (Note 13) Current Limit (Note 9) Output 1, VIN1 = 6V, VOUT1 = 0V l 1.1 1.4 1.7 A VIN1 = 2.2V, ∆VOUT1 = –0.1V l 800 mA Output 2, VIN2 = 6V, VOUT2 = 0V l 350 420 490 mA VIN2 = 2.2V, ∆VOUT2 = –0.1V l 270 mA Input Reverse Leakage Current VIN = –20V, VOUT = 0V l 1 mA Reverse Output Current VOUT = 1.220V, VIN = 0V 0.5 10 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 6:
Dropout voltage is the minimum input to output voltage differential may cause permanent damage to the device. Exposure to any Absolute needed to maintain regulation at a specified output current. In dropout, the Maximum Rating condition for extended periods may affect device output voltage equals: VIN – VDROPOUT. reliability and lifetime.
Note 7:
GND pin current is tested with VIN = 2.447V and a current source
Note 2:
The LT3030 is tested and specified under pulse load conditions load. This means the device is tested while operating in its dropout region such that TJ ≈ TA. The LT3030E is 100% tested at TA = 25°C and or at the minimum input voltage specification. This is the worst-case performance is guaranteed from 0°C to 125°C. Performance of the GND pin current. The GND pin current decreases slightly at higher input LT3030E over the full –40°C to 125°C operating junction temperature voltages. Total GND pin current equals the sum of output 1 and output 2 range is assured by design, characterization and correlation with statistical GND pin currents. process controls. The LT3030I is guaranteed over the full –40°C to 125°C
Note 8:
ADJ1/ADJ2 pin bias current flows into the pin. operating junction temperature range. The LT3030MP is 100% tested and
Note 9:
The LT3030 contains current limit foldback circuitry. See the guaranteed over the –55°C to 150°C operating junction temperature range. Typical Performance Characteristics section for current limit as a function The LT3030H is tested at 150°C operating junction temperature. High of the V junction temperatures degrade operating lifetimes. Operating lifetime is IN – VOUT differential voltage. derated at junction temperatures greater than 125°C.
Note 10:
SHDN1 and SHDN2 pin current flows into the pin.
Note 3:
The LT3030 is tested and specified for these conditions with the
Note 11:
The LT3030 minimum input voltage specification limits dropout ADJ1/ADJ2 pin connected to the corresponding OUT1/OUT2 pin. voltage under some output voltage/load conditions. See the curve of Minimum Input Voltage in the Typical Performance Characteristics section.
Note 4:
Maximum junction temperature limits operating conditions. The regulated output voltage specification does not apply for all possible
Note 12:
The LT3030 includes overtemperature protection that is intended combinations of input voltage and output current. When operating at to protect the device during momentary overload conditions. Junction maximum input voltage, limit the output current range. When operating at temperature exceeds the maximum operating junction temperature when maximum output current, limit the input voltage range. overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device
Note 5:
To satisfy minimum input voltage requirements, the LT3030 is reliability. tested and specified for these conditions with an external resistor divider (two 243k resistors) for an output voltage of 2.447V. The external resistor
Note 13:
The Full Current for ILOAD is 750mA and 250mA for Output 1 and divider adds 5μA of DC load on the output. Output 2 respectively. 3030fa 4 For more information www.linear.com/LT3030 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Applications Package Description Revision History Typical Application Related Parts