Datasheet LTC3672B-2 (Analog Devices) - 4

LTC3672B-2
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise specifi ed. VIN Quiescent Current VIN1 Quiescent Current Buck Regulated Output vs VIN Voltage vs VIN1 Voltage vs Temperature
500 5 1.23 SW PIN NOT SWITCHING V V IN = VIN1 IN = 3.6V 1.22 400 130°C 4 90°C 90°C 1.21 300 3 130°C BUCK AT NO LOAD 25°C (μA) (μA) TED OUTPUT (V) 1.20 I VIN 200 I VIN1 –45°C 2 BUCK AT 400mA LOAD –45°C 1.19 25°C 100 1 BUCK REGULA 1.18 0 0 1.17 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 150 V V TEMPERATURE (°C) IN (V) IN1 (V) 3672B2 G01 3672B2 G02 3672B2 G03
LDO1 Regulated Output LDO2 Regulated Output Buck Regulated Output vs Temperature vs Temperature vs VIN Input Voltage
2.87 1.845 1.23 V V IN = VIN1 = 3.6V IN = 3.6V BOTH LDOs UNLOADED 2.86 2.85 1.830 1.22 2.84 2.83 1.815 1.21 2.82 LDO1 AT NO LOAD LDO2 AT NO LOAD 2.81 BUCK AT NO LOAD 2.80 TED OUTPUT (V) 1.800 TED OUTPUT (V) 1.20 2.79 LDO1 AT 150mA LOAD 2.78 LDO2 AT 150mA LOAD BUCK AT 400mA LOAD 1.785 BUCK OUTPUT (V) 1.19 2.77 2.76 LD01 REGULA LDO2 REGULA 1.770 1.18 2.75 2.74 2.73 1.755 1.17 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 2.5 3.0 3.5 4.0 4.5 5.0 5.5 TEMPERATURE (oC) TEMPERATURE (°C) VIN INPUT VOLTAGE (V) 3672B2 G05 3672B2 G04 3672B2 G06
LDO1 Regulated Output LDO2 Regulated Output Voltage vs VIN1 Input Voltage vs VIN Input Voltage
2.87 1.85 BUCK AND LDO2 UNLOADED BUCK AND LDO1 UNLOADED 2.86 VIN = VIN1 1.84 2.85 2.84 1.83 2.83 1.82 2.82 1.81 2.81 I I LDO1 = 0mA LDO2 = 0mA 2.80 1.80 2.79 ILDO1 = 150mA 1.79 2.78 ILDO2 = 150mA LDO1 OUTPUT (V) LDO2 OUTPUT (V) 2.77 1.78 2.76 1.77 2.75 1.76 2.74 2.73 1.75 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VIN1 INPUT VOLTAGE (V) VIN INPUT VOLTAGE (V) 3672b2 G07 3672B2 G08 3672b2fa 4