Datasheet LT3021, LT3021-1.2, LT3021-1.5, LT3021-1.8 (Analog Devices) - 8

LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8
TYPICAL PERFORMANCE CHARACTERISTICS SHDN Pin Input Current Current Limit Reverse Output Current
5 V 2.0 500 SHDN = 10V VOUT = 0V VIN = 0V 1.8 450 VOUT = 1.2V A) A) μ 4 V 1.6 IN = 10V μ 400 1.4 350 3 1.2 VIN = 1.7V 300 1.0 250 2 0.8 200 PIN INPUT CURRENT ( CURRENT LIMIT (A) 0.6 150 SHDN 1 0.4 100 REVERSE OUTPUT CURRENT ( 0.2 50 0 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3021 G10 3021 G12 3021 G13
Load Regulation Input Ripple Rejection Input Ripple Rejection ∆IL = 1mA to 500mA
70 100 2.5 90 2.0 60 80 1.5 50 COUT = 22μF 70 1.0 40 60 0.5 TION (mV) 50 0 30 40 –0.5 COUT = 4.7μF 20 30 –1.0 LOAD REGULA VIN = 1.15V INPUT RIPPLE REJECTION (dB) INPUT RIPPLE REJECTION (dB) 20 –1.5 VOUT = 0.5V 10 VIN = 1.5V + 50mVRMS RIPPLE VIN = 1.5V + 0.5VP-P RIPPLE AT 120Hz *LOAD REGULATION NUMBER REFERS VOUT = 0.5V 10 VOUT = 0.5V –2.0 TO CHANGE IN THE 200mV REFERENCE I I 0 L = 500mA L = 500mA VOLTAGE 0 –2.5 10 100 1k 10k 100k 1M –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 FREQUENCY (Hz) TEMPERATURE (°C) TEMPERATURE (°C) 3021 G14 3021 G15 3021 G17 Rev.D 8 For more information www.analog.com Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Typical Performance Characteristics Pin Functions Applications Information Package Description