Datasheet LT1614 (Analog Devices) - 4

LT1614
W U TYPICAL PERFOR A CE CHARACTERISTICS Shutdown Pin Bias Current vs Quiescent Current in Shutdown Input Voltage LBI Bias Current vs Temperature
10 10 16 14 8 8 12 µA) µA) 10 6 6 8 4 4 6 LBI BIAS CURRENT (nA) 4 QUIESCENT CURRENT ( SHDN BIAS CURRENT ( 2 2 2 0 0 0 0 1 2 3 4 5 0 1 2 3 4 5 –50 –25 0 25 50 75 100 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 1614 G01 1614 G02 1614 G03
Oscillator Frequency vs Switch VCESAT vs Current LBI Reference vs Temperature Input Voltage
500 210 900 TA = 25°C 208 400 206 800 25°C 204 85°C 300 202 700 (mV) –40°C 200 CESATV 200 198 600 196 FREQUENCY (kHz) REFERENCE VOLTAGE (mV) 100 194 500 192 0 190 400 0 100 200 300 400 500 600 –50 –25 0 25 50 75 100 1 2 3 4 5 SWITCH CURRENT (mA) TEMPERATURE (°C) INPUT VOLTAGE (V) 1614 G04 1614 G05 1614 G06
Quiescent Current vs NFB Pin Bias Current vs Temperature* Temperature VNFB vs Temperature
6 6 –1.245 –1.240 5 5 µA) –1.235 4 V 4 IN = 1.25V –1.230 (V) 3 3 NFBV V –1.225 IN = 3V 2 2 –1.220 QUIESCENT CURRENT (mA) NFB PIN BIAS CURRENT ( 1 1 VIN = 5V –1.215 0 0 –1.210 –40 –20 0 20 40 60 80 –50 –25 0 25 50 75 100 –50 –25 0 25 50 75 100 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1614 G07 1614 G08 1614 G09 *Includes diode leakage 4