Datasheet LT8619, LT8619-5 (Analog Devices) - 5

LT8619/LT8619-5
TYPICAL PERFORMANCE CHARACTERISTICS 700kHz Efficiency at V 700kHz Efficiency at VOUT = 5V = 5V 700kHz Efficiency at V 700kHz Efficiency at VOUT = 3.3V = 3.3V 2MHz Efficiency at V 2MHz Efficiency at VOUT OUT = 5V = 5V
100 100 100 Burst Mode Burst Mode 90 Burst Mode OPERATION 90 90 OPERATION OPERATION 80 80 80 PULSE- 70 70 PULSE- 70 SKIPPING SKIPPING 60 PULSE- 60 60 MODE SKIPPING MODE 50 MODE FORCED 50 FORCED 50 FORCED 40 CONTINUOUS 40 CONTINUOUS 40 CONTINUOUS EFFICIENCY (%) MODE EFFICIENCY (%) MODE EFFICIENCY (%) MODE 30 30 30 V V 20 IN = 12V IN = 12V VIN = 12V f 20 20 OSC = 700kHz fOSC = 700kHz fOSC = 2MHz 10 L = 10µH 10 L = 10µH 10 L = 4.7µH IHLP-2020BZ-01 IHLP-2020BZ-01 IHLP-2020AB-01 0 0 0 0.001 0.01 0.1 1 10 100 1k 10k 0.001 0.01 0.1 1 10 100 1k 10k 0.001 0.01 0.1 1 10 100 1k 10k LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 8619 G01 8619 G02 8619 G03
2MHz Efficiency at V 2MHz OUT Efficiency at V = 3.3V OUT = 3.3V Efficiency at VOUT = 5V = 5V Efficiency at VOUT = 3.3V
100 100 100 90 Burst Mode OPERATION 90 80 Burst Mode 95 80 OPERATION PULSE- 12V 70 24V SKIPPING 90 70 60 MODE 48V 60 50 FORCED 85 CONTINUOUS 50 40 MODE 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) OSC f = 700kHz 30 80 FORCED CONTINUOUS MODE 30 Burst Mode OPERATION V V 20 IN = 12V IN = 48V f 20 OSC = 2MHz 75 VIN = 24V 10 L = 3.3µH fOSC = 700kHz 10 VIN = 12V IHLP-2020AB-01 L = 10µH, IHLP-2020BZ-01 L = 10µH, IHLP-2020BZ-01 0 70 0 0.001 0.01 0.1 1 10 100 1k 10k 0 0.2 0.4 0.6 0.8 1.0 1.2 0.001 0.01 0.1 1 10 100 1k 10k LOAD CURRENT (mA) LOAD CURRENT (A) LOAD CURRENT (mA) 8619 G04 8619 G05 8619 G06
Efficiency vs VIN No Load IVIN No Load I at VIN 700kHz at 700kHz No Load I VIN VIN vs Temperature
100 10k 20 VOUT = 3.3V f FORCED CONTINUOUS MODE OSC = 700kHz fSW = 700kHz 95 FORCED CONTINUOUS MODE 1k VOUT: 10 L = 10µH IHLP-2020BZ-01 PULSE- Burst Mode OPERATION 3.3V SKIPPING 90 5V 12V MODE 100 3.3V 0.5A LOAD 60V 3.3V 85 (µA) (µA) 1.2A LOAD I VIN 10 I VIN 60V EFFICIENCY (%) 80 SHUTDOWN 12V Burst Mode OPERATION 1 75 1 fOSC = 700kHz SHUTDOWN NO LOAD 70 0.1 0 10 20 30 40 50 60 1 10 100 0.5 V –50 –25 0 25 50 75 100 125 150 IN (V) VIN (V) 8619 G07 8619 G08 TEMPERATURE (°C) 8619 G09 Rev. C For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Revision History Typical Application Related Parts