Datasheet LTM4632 (Analog Devices) - 5

LTM4632
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current at Efficiency vs Load Current at 3.6VIN Efficiency vs Load Current at 5VIN 12VIN
100 100 100 95 95 95 90 90 90 85 85 85 80 80 80 EFFICIENCY (%) 75 EFFICIENCY (%) 75 EFFICIENCY (%) 75 1V 1V 1V 70 OUT OUT OUT 1.2V 70 70 OUT 1.2VOUT 1.2VOUT 1.5VOUT 1.5VOUT 1.5VOUT 65 1.8VOUT 65 1.8VOUT 65 1.8VOUT 2.5VOUT 2.5VOUT 2.5VOUT 60 60 60 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4632 G01 4632 G02 4632 G03
1V Output Transient Response 1.2V Output Transient Response 1.5V Output Transient Response
VOUT VOUT VOUT AC-COUPLED AC-COUPLED AC-COUPLED 50mV/DIV 50mV/DIV 50mV/DIV LOAD STEP LOAD STEP LOAD STEP 1A/DIV 1A/DIV 1A/DIV 4632 G04 20µs/DIV 4632 G05 20µs/DIV 4632 G06 20µs/DIV VIN = 12V VIN = 12V VIN = 12V VOUT = 1V VOUT = 1.2V VOUT = 1.5V fS = 1MHz fS = 1MHz fS = 1MHz OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC LOAD STEP = 2.25A TO 3A LOAD STEP = 2.25A TO 3A LOAD STEP = 2.25A TO 3A
Start-Up with No Load Current 1.8V Output Transient Response 2.5V Output Transient Response Applied
SW V 10V/DIV OUT VOUT AC-COUPLED AC-COUPLED 50mV/DIV 50mV/DIV VOUT 1A/DIV LOAD STEP LOAD STEP I 1A/DIV 1A/DIV IN 0.5A/DIV 4632 G07 20µs/DIV 4632 G08 20µs/DIV 4632 G09 20µs/DIV VIN = 12V VIN = 12V VIN = 12V VOUT = 1.8V VOUT = 2.5V VOUT = 1.8V fS = 1MHz fS = 1MHz fS = 1MHz OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC IOUT = 0A LOAD STEP = 2.25A TO 3A LOAD STEP = 2.25A TO 3A INPUT CAPACITOR = 1 × 22µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC SOFT-START CAPACITOR = 0.1µF Rev. D For more information www.analog.com 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photo Design Resources Related Parts