Datasheet LT3029 (Analog Devices) - 4

LT3029
elecTrical characTerisTics Note 7:
GND pin current is tested with VIN = 2.437V and a current source
Note 10:
SHDN1/SHDN2 pin current flows into the pin. load. This means the device is tested while operating in its dropout region
Note 11:
The LT3029 minimum input voltage specification limits dropout or at the minimum input voltage specification. This is the worst-case voltage under some output voltage/load conditions. See the curve of GND pin current. The GND pin current decreases slightly at higher input Minimum Input Voltage in the Typical Performance Characteristics. voltages. Total GND pin current equals the sum of output 1 and output 2
Note 12:
The LT3029 includes overtemperature protection that is intended GND pin currents. to protect the device during momentary overload conditions. Junction
Note 8:
ADJ1/ADJ2 pin bias current flows into the pin. temperature exceeds the maximum operating junction temperature when
Note 9:
The LT3029 contains current limit foldback circuitry. See the overtemperature protection is active. Continuous operation above the Typical Performance Characteristics for current limit as a function of the specified maximum operating junction temperature may impair device VIN – VOUT differential voltage. reliability.
Typical perForMance characTerisTics TJ = 25°C, unless otherwise noted. Typical Dropout Voltage Guaranteed Dropout Voltage
500 500 = TEST POINTS 450 450 TJ = 150°C T 400 400 J = 150°C 350 TAGE (mV) T 350 J = 125°C TJ = 25°C 300 300 TAGE (mV) 250 T 250 J = 25°C 200 200 150 T 150 DROPOUT VOL J = –55°C 100 100 50 GUARANTEED DROPOUT VOL 50 0 0 0 50 100 150 200 250 300 350 400 450 500 0 50 100 150 200 250 300 350 400 450 500 OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 3029 G01 3029 G02
Dropout Voltage vs Temperature Quiescent Current (per Channel)
500 150 VIN = 6V 450 IL = 500mA RL = 243k, IL = 5µA 400 125 350 IL = 250mA 100 300 TAGE (mV) IL = 100mA 250 75 VSHDN = VIN 200 IL = 10mA 150 50 DROPOUT VOL 100 QUIESCENT CURRENT (µA) 25 50 IL = 50mA IL = 1mA 0 0 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) TEMPERATURE (°C) 3029 G03 3029 G04 3029fb 4 For more information www.linear.com/LT3029 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Package Description Revision History Typical Application Related Parts