Datasheet LTM4653 (Analog Devices) - 6

LTM4653
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency vs Load Current at Efficiency vs Load Current at Efficiency vs Load Current at 5VIN, Forced Continuous Mode 12VIN, Forced Continuous Mode 15VIN, Forced Continuous Mode
95 95 100 95 90 90 90 85 85 85 80 80 80 EFFICIENCY (%) 3.3V 75 75 OUT, 400kHz EFFICIENCY (%) 75 12VOUT, 500kHz 2.5VOUT, 400kHz 5.0V 5.0VOUT, 450kHz 1.8V OUT, 400kHz 70 OUT, 400kHz 3.3V EFFICIENCY (%) 3.3VOUT, 400kHz 70 1.5V OUT, 400kHz OUT, 400kHz 70 2.5V 2.5VOUT, 400kHz 1.2V OUT, 400kHz 65 OUT, 400kHz 1.8V 1.2V OUT, 400kHz 1.2VOUT, 400kHz 1.8VOUT, 400kHz OUT, 400kHz 1.0VOUT, 400kHz 1.5V 1.0V 1.5VOUT, 400kHz 1.0VOUT, 400kHz 65 OUT, 400kHz OUT, 400kHz 65 60 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4653 G01 4653 G02 4653 G03
Efficiency vs Load Current at Efficiency vs Load Current at Efficiency vs Load Current at 24VIN, Forced Continuous Mode 36VIN, Forced Continuous Mode 48VIN, Forced Continuous Mode
100 100 95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 EFFICIENCY (%) EFFICIENCY (%) 70 70 EFFICIENCY (%) 24VOUT, 1.5MHz 15VOUT, 750kHz 70 15VOUT, 1.4MHz 65 12VOUT, 800kHz 1.8VOUT, 400kHz 65 24VOUT, 1.2MHz 3.3VOUT, 400kHz 12VOUT, 1.2MHz 5.0VOUT, 550kHz 1.5VOUT, 400kHz 15VOUT, 1.2MHz 2.5VOUT, 400kHz 5.0V 65 OUT, 600kHz 60 3.3VOUT, 400kHz 1.2VOUT, 400kHz 60 12VOUT, 1.1MHz 1.8VOUT, 400kHz 3.3VOUT, 400kHz 2.5VOUT, 400kHz 1.0VOUT, 400kHz 5V 1.5V 2.5V 55 OUT, 575kHz OUT, 400kHz 55 OUT, 400kHz 60 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4653 G04 4653 G05 4653 G06
3.3V Transient Response, 48VIN 12V Transient Response, 48VIN 1V Transient Response, 24VIN
VOUT VOUT VOUT 50mV/DIV 100mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED AC-COUPLED IOUT IOUT IOUT 2A/DIV 2A/DIV 2A/DIV 4653 G07 4653 G08 4653 G09 40µs/DIV 40µs/DIV 40µs/DIV FIGURE 32 CIRCUIT, 48VIN, FIGURE 32 CIRCUIT, 48VIN, FIGURE 32 CIRCUIT, 24VIN, CINH = CD = 4.7µF, COUT = 2 x 100µF, CINH = CD = 4.7µF, COUT = 2 x 22µF, CINH = CD = 4.7µF, COUT = 3 x 100µF, RfSET = N/A, RISET = 66.5kΩ, RfSET = 124k, RISET = 240kΩ, RfSET = N/A, RISET = 20kΩ, CTH = 10nF, RTH = 604Ω, CTH = 10nF, RTH = 562Ω, CTH = 6.8nF, RTH = 681Ω, REXTVCC = N/A, CEXTVCC = N/A, REXTVCC = 49.9Ω, CEXTVCC = 1µF, REXTVCC = N/A, CEXTVCC = N/A, 2A to 4A LOAD STEP AT 2A/µs 2A to 4A LOAD STEP AT 2A/µs 2A to 4A LOAD STEP AT 2A/µs Rev. A 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Test Circuit Decoupling Requirements Operation Operation Operation Applications Information Typical Applications Package Photograph Package Description Typical Application Related Parts