Datasheet LTC3728L, LTC3728LX (Analog Devices) - 8

LTC3728L/LTC3728LX
Typical perForMance characTerisTics Soft-Start Up (Figure 13) Load Step (Figure 13) Load Step (Figure 13)
VOUT VOUT VOUT 5V/DIV 200mV/DIV 200mV/DIV VRUN/SS 5V/DIV IL IL 2A/DIV 2A/DIV IL 2A/DIV 3728L G19 V 3728L G20 3728L G21 IN = 15V 5ms/DIV VIN = 15V 20µs/DIV VIN = 15V 20µs/DIV VOUT = 5V VOUT = 5V VOUT = 5V VPLLFLTR = 0V VPLLFLTR = 0V LOAD STEP = 0A TO 3A LOAD STEP = 0A TO 3A Burst Mode OPERATION CONTINUOUS MODE
Input Source/Capacitor Constant-Frequency (Burst Inhibit) Instantaneous Current (Figure 13) Burst Mode Operation (Figure 13) Operation (Figure 13)
IIN 2A/DIV VOUT VOUT 20mV/DIV 20mV/DIV VIN 200mV/DIV VSW1 10V/DIV IL V I SW2 0.5A/DIV L 10V/DIV 0.5A/DIV 3728L G22 V 3728L G23 3728L G24 IN = 15V 1µs/DIV VIN = 15V 10µs/DIV VIN = 15V 2µs/DIV VOUT1 = 5V, VOUT2 = 3.3V VOUT = 5V VOUT = 5V VPLLFLTR = 0V VPLLFLTR = 0V VPLLFLTR = 0V IOUT5 = IOUT3.3 = 2A VFCB = OPEN VFCB = 5V IOUT = 20mA IOUT = 20mA 3728lxff 8 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts