Datasheet LTM4603, LTM4603-1 (Analog Devices) - 5

LTM4603/LTM4603-1
typical perForMance characteristics (See Figure 18 for all curves) Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current with 5VIN with 12VIN with 20VIN
100 100 95 95 95 90 90 90 85 85 85 80 80 75 80 75 70 75 70 65 70 65 EFFICIENCY (%) 5VIN, 0.6VOUT EFFICIENCY (%) 60 12VIN, 1.2VOUT EFFICIENCY (%) 60 65 5VIN, 1.2VOUT 12VIN, 1.5VOUT 55 20VIN, 1.5VOUT 5V 55 12V 20V 60 IN, 1.5VOUT IN, 1.8VOUT IN, 1.8VOUT 5VIN, 1.8VOUT 50 12VIN, 2.5VOUT 50 20VIN, 2.5VOUT 55 5VIN, 2.5VOUT 12VIN, 3.3VOUT 45 20VIN, 3.3VOUT 5V 45 IN, 3.3VOUT 12VIN, 5VOUT 20VIN, 5VOUT 50 40 40 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4603 G01 4603 G02 4603 G03
1.2V Transient Response 1.5V Transient Response 1.8V Transient Response
LOAD STEP LOAD STEP LOAD STEP 1A/DIV 1A/DIV 1A/DIV VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV 25µs/DIV 4603 G04 25µs/DIV 4603 G05 25µs/DIV 4603 G06 1.2V AT 3A/µs LOAD STEP 1.5V AT 3A/µs LOAD STEP 1.8V AT 3A/µs LOAD STEP COUT: 1× 22µF, 6.3V CERAMIC COUT: 1× 22µF, 6.3V CERAMIC COUT: 1× 22µF, 6.3V CERAMIC 1× 330µF, 4V SANYO POSCAP 1× 330µF, 4V SANYO POSCAP 1× 330µF, 4V SANYO POSCAP
2.5V Transient Response 3.3V Transient Response
LOAD STEP LOAD STEP 1A/DIV 1A/DIV VOUT VOUT 50mV/DIV 50mV/DIV 25µs/DIV 4603 G07 25µs/DIV 4603 G08 2.5V AT 3A/µs LOAD STEP 3.3V AT 3A/µs LOAD STEP COUT: 1× 22µF, 6.3V CERAMIC COUT: 1× 22µF, 6.3V CERAMIC 1× 330µF, 4V SANYO POSCAP 1× 330µF, 4V SANYO POSCAP 4603fb 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Application Package Description Revision History Typical Application Package Photograph Related Parts