Datasheet LTC3417A (Analog Devices) - 4

LTC3417A
Typical perForMance characTerisTics OUT1 Pulse Skipping OUT1 Forced Continuous OUT1 Burst Mode Operation Mode Operation Mode Operation
VOUT VOUT VOUT 20mV/DIV 20mV/DIV 20mV/DIV IL IL IL 250mA/DIV 250mA/DIV 250mA/DIV 3417 G01 VIN = 3.6V 2µs/DIV 3417 G02 VIN = 3.6V 2µs/DIV 3417 G03 VIN = 3.6V 2µs/DIV VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V ILOAD = 100mA ILOAD = 100mA ILOAD = 100mA REFER TO FIGURE 4 REFER TO FIGURE 4 REFER TO FIGURE 4
OUT2 Pulse Skipping OUT2 Forced Continuous OUT2 Burst Mode Operation Mode Operation Mode Operation
VOUT VOUT VOUT 20mV/DIV 20mV/DIV 20mV/DIV IL IL IL 250mA/DIV 250mA/DIV 250mA/DIV 3417 G04 VIN = 3.6V 2µs/DIV 3417 G05 VIN = 3.6V 2µs/DIV 3417 G06 VIN = 3.6V 2µs/DIV VOUT = 2.5V VOUT = 2.5V VOUT = 2.5V ILOAD = 60mA ILOAD = 60mA ILOAD = 60mA REFER TO FIGURE 4 REFER TO FIGURE 4 REFER TO FIGURE 4
OUT1 Efficiency vs VIN OUT1 Efficiency vs Load Current OUT2 Efficiency vs Load Current (Burst Mode Operation)
100 100 100 VIN = 2.5V VIN = 3.6V VOUT = 1.8V 95 VOUT = 1.8V 95 VOUT = 2.5V 95 ILOAD = 460mA 90 90 90 85 85 ILOAD = 1.4A 80 80 85 EFFICIENCY (%) 75 75 Burst Mode EFFICIENCY (%) Burst Mode EFFICIENCY (%) 80 70 OPERATION 70 OPERATION PULSE SKIP PULSE SKIP 75 65 FORCED 65 FORCED CONTINUOUS CONTINUOUS REFER TO FIGURE 4 60 REFER TO FIGURE 4 60 REFER TO FIGURE 4 70 0.001 0.01 0.1 1 10 0.001 0.01 0.1 1 10 2 2.5 3 3.5 4 4.5 5 5.5 LOAD CURRENT (A) LOAD CURRENT (A) VIN (V) 3417 G07 3417 G08 3417 G09 3417afc 4 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Package Description Revision History Related Parts