Datasheet LTC3622, LTC3622-2, LTC3622-23/5 (Analog Devices) - 4

LTC3622/ LTC3622-2/LTC3622-23/5
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. VIN1 = VIN2 = 12V, unless otherwise noted. (Notes 3, 6) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN1, VIN2 Operating Voltage 2.7 17 V SVIN Operating Voltage MSOP Package 2.7 17 V VOUT Operating Voltage 0.6 VIN V IQ Input Quiescent Current Active Mode, VRUN1 = VRUN2 = 2V (Note 4) 3 mA Burst Mode Operation, VRUN1 = VRUN2 = 2V, 5 10 µA MODE/SYNC = 3V, No Load Shutdown Mode; VRUN1 = VRUN2 = 0V 0.1 ±1 µA VFB Regulated Feedback Voltage LTC3622/LTC3622-2 0.594 0.6 0.606 V l 0.591 0.6 0.609 IFB FB Input Current LTC3622/LTC3622-2 10 nA VOUT1 Regulated Fixed Output Voltage LTC3622-23/5 4.950 5.0 5.050 V (Channel 1) l 4.925 5.0 5.075 V VOUT2 Regulated Fixed Output Voltage LTC3622-23/5 3.267 3.3 3.333 V (Channel 2) l 3.250 3.3 3.350 V IFB(VOUT) Feedback Input Leakage Current LTC3622-23/5 1 5 µA Reference Voltage Line Regulation VIN = 2.7V to 17V (Note 5) 0.01 0.015 %/V Output Voltage Load Regulation (Note 5) 0.1 % NMOS Switch Leakage 0.1 1 µA PMOS Switch Leakage 0.1 1 µA RDS(ON) NMOS On-Resistance VIN = 5V 0.15 Ω PMOS On-Resistance 0.37 Ω Maximum Duty Cycle VFB = 0V l 100 % tON(MIN) Minimum On-Time VFB = 0.7V, VIN1 = VIN2 = 5 75 ns VRUN RUN Input High 1.0 V RUN Input Low 0.35 V RUN Input Current VRUN = 12V 0.1 ±20 nA VMODE Pulse-Skipping Mode 0.15 V Burst Mode Operation VINTVCC–0.4 V PHASE Input Threshold Input Low 0.4 V Input High 2.0 V ILIM Input Threshold Input Low 0.1 V Input High VINTVCC–0.1 INTVCC V tSS Soft Start Time 0.5 ms ILIM Peak Current Limit VIN > 5V A VILIM = 0.1V (Both Channels) 1.6 1.8 2.0 A VILIM = INTVCC – 0.1V (Both Channels) 0.8 1.0 1.2 A VILIM = Floating, Channel 1 1.6 1.8 2.0 A VILIM = Floating, Channel 2 0.8 1.0 1.2 VINTVCC Undervoltage Lockout VIN Ramping Up 2.3 2.5 2.65 V VINTVCC Undervoltage Lockout Hysteresis 160 mV VIN Overvoltage Lockout Rising l 18 19 20 V VIN Overvoltage Lockout Hysteresis 300 mV Rev D 4 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts