Datasheet LTM4616 (Analog Devices) - 5

LTM4616
typical perForMance characteristics Specified as Each Channel Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current
100 100 100 CONTINUOUS MODE CONTINUOUS MODE CONTINUOUS MODE 95 95 95 90 90 90 85 85 85 EFFICIENCY (%) 80 EFFICIENCY (%) 80 EFFICIENCY (%) 80 5VIN 1.2VOUT 5V 3.3V IN 1.5VOUT IN 1.2VOUT 75 5V 3.3V 2.7V IN 1.8VOUT 75 IN 1.5VOUT 75 IN 1.0VOUT 5V 3.3V 2.7V IN 2.5VOUT IN 1.8VOUT IN 1.5VOUT 5V 3.3V 2.7V IN 3.3VOUT IN 2.5VOUT IN 1.8VOUT 70 70 70 0 2 4 6 8 0 2 4 6 8 0 1 2 3 4 5 6 7 LOAD CURRENT LOAD CURRENT LOAD CURRENT (A) 4616 G01 4616 G02 4616 G03
Burst Mode Efficiency with 5V Input VIN to VOUT Step-Down Ratio VIN to VOUT Step-Down Ratio
100 4.0 4.0 3.5 3.5 90 3.0 3.0 80 2.5 2.5 (V) (V) 70 2.0 2.0 V OUT V OUT 1.5 1.5 EFFICIENCY (%) 60 1.0 1.0 VOUT = 1.5V I 50 OUT = 8A VOUT = 1.8V IOUT = 6A VOUT = 1.8V VOUT = 2.5V 0.5 VOUT = 1.2V VOUT = 2.5V 0.5 VOUT = 1.2V VOUT = 2.5V VOUT = 3.3V VOUT = 1.5V VOUT = 3.3V VOUT = 1.5V VOUT = 3.3V 40 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 2 3 4 5 6 2 3 4 5 6 LOAD CURRENT (A) VIN (V) VIN (V) 4616 G05 4616 G06 4616 G04
Supply Current vs VIN Load Transient Response Load Transient Response
1.6 1.4 ILOAD ILOAD 1A/DIV 1A/DIV 1.2 VO = 1.2V PULSE-SKIPPING MODE 0A 0A 1 V V 0.8 OUT OUT 50mV/DIV 50mV/DIV Y CURRENT (mA) 0.6 VO = 1.2V Burst Mode OPERATION SUPPL 0.4 V 4616 G08 4616 G09 IN = 5V 20µs/DIV VIN = 5V 20µs/DIV 0.2 VOUT = 3.3V VOUT = 2.5V 2A/µs STEP 2A/µs STEP 0 COUT = 2 × 100µF X5R, 470µF 4V POSCAP COUT = 2 × 100µF X5R, 470µF 4V POSCAP 2.5 3 3.5 4 4.5 5 5.5 INPUT VOLTAGE (V) 4616 G07 4616ff For more information www.linear.com/LTM4616 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Pin Functions Simplified Block Diagram Operation Applications Information Package Description Revision History Package Photo Related Parts Design Resources