Datasheet LTM4625 (Analog Devices) - 4

LTM4625
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current Efficiency vs Load Current from 5VIN from 12VIN DCM Mode Efficiency, VOUT = 1.5V
100 95 100 90 95 90 VIN = 5V 80 90 85 70 VIN = 12V 60 85 80 50 80 75 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 75 70 30 5VOUT 3.3V 3.3V OUT OUT 2.5VOUT 20 70 2.5VOUT 1.8V 1.8V OUT OUT 1.5VOUT 65 1.5VOUT 1.2VOUT 10 1.2VOUT 1VOUT 1VOUT 65 60 0 0 1 2 3 4 5 0 1 2 3 4 5 0.001 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4625 G01 4625 G02 4625 G03
1V Output Transient Response 1.5V Output Transient Response 2.5V Output Transient Response
VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP LOAD STEP 1A/DIV 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4625 G04 VIN = 12V 20µs/DIV 4625 G05 VIN = 12V 20µs/DIV 4625 G06 VOUT = 1V VOUT = 1.5V VOUT = 2.5V IOUT = 4A TO 5A, 1A/µs IOUT = 4A TO 5A, 1A/µs IOUT = 4A TO 5A, 1A/µs OUTPUT CAPACITOR = 47µF CERAMIC OUTPUT CAPACITOR = 47µF CERAMIC OUTPUT CAPACITOR = 47µF CERAMIC
3.3V Output Transient Response 5V Output Transient Response
VOUT VOUT 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4625 G07 VIN = 12V 20µs/DIV 4625 G08 VOUT = 3.3V VOUT = 5V IOUT = 4A TO 5A, 1A/µs IOUT = 4A TO 5A, 1A/µs OUTPUT CAPACITOR = 47µF CERAMIC OUTPUT CAPACITOR = 47µF CERAMIC Rev D 4 For more information www.analog.com 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