Datasheet LT3027 (Analog Devices) - 4

LT3027
W U TYPICAL PERFOR A CE CHARACTERISTICS Typical Dropout Voltage Guaranteed Dropout Voltage Dropout Voltage
500 500 500 = TEST POINTS 450 450 450 400 400 400 350 T 350 TJ ≤ 125°C 350 J = 125°C IL = 100mA 300 300 300 250 250 TJ ≤ 25°C 250 IL = 50mA 200 TJ = 25°C 200 200 150 150 150 IL = 10mA DROPOUT VOLTAGE (mV) DROPOUT VOLTAGE (mV) DROPOUT VOLTAGE (mV) 100 100 100 IL = 1mA 50 50 50 0 0 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 –50 –25 0 25 50 75 100 125 OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) TEMPERATURE (°C) 3027 G01 3027 G02 3027 G03
Quiescent Current ADJ1 or ADJ2 Pin Voltage Quiescent Current
40 1.240 30 VIN = 6V IL = 1mA 35 RL = 250k V 1.235 SHDN = VIN I 25 L = 5µA µA) 30 1.230 µA) VSHDN = VIN 20 25 1.225 20 1.220 15 15 1.215 10 ADJ PIN VOLTAGE (V) QUIESCENT CURRENT ( 10 1.210 QUIESCENT CURRENT ( T 5 J = 25°C 5 1.205 RL = 250k V I SHDN = 0V V L = 5µA SHDN = 0V 0 1.200 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0 2 4 6 8 10 12 14 16 18 20 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V) 3027 G03 3027 G05 3027 G06
SHDN1 or SHDN2 Pin Threshold GND Pin Current GND Pin Current vs ILOAD (On-to-Off)
2.50 2.50 1.0 T I J = 25°C V L = 1mA 2.25 IN = VOUT(NOMINAL) + 1V 0.9 *FOR V 2.25 OUT = 1.22V 2.00 R 0.8 L = 12.2Ω 2.00 I 1.75 L = 100mA* 1.75 0.7 1.50 1.50 0.6 1.25 R 1.25 0.5 L = 24.4Ω 1.00 IL = 50mA* 1.00 0.4 0.75 0.75 0.3 GND PIN CURRENT (mA) GND PIN CURRENT (mA) SHDN PIN THRESHOLD (V) 0.50 RL = 1.22k RL = 122Ω 0.50 0.2 IL = 1mA* I 0.25 L = 10mA* 0.25 0.1 0 0 0 0 1 2 3 4 5 6 7 8 9 10 0 10 20 30 40 50 60 70 80 90 100 –50 –25 0 25 50 75 100 125 INPUT VOLTAGE (V) OUTPUT CURRENT (mA) TEMPERATURE (°C) 3027 G07 3027 G08 3027 G09 3027fa 4