Datasheet LT8619, LT8619-5 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 60V, 1.2A Synchronous Monolithic Buck Regulator with 6μA Quiescent Current |
| Pages / Page | 28 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. 700kHz Efficiency at VOUT = 5V. … |
| Revision | A |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. 700kHz Efficiency at VOUT = 5V. 700kHz Efficiency at VOUT = 3.3V
Model Line for this Datasheet
LT8619
Text Version of Document
LT8619/LT8619-5
TYPICAL PERFORMANCE CHARACTERISTICS 700kHz Efficiency at VOUT = 5V 700kHz Efficiency at VOUT = 3.3V 2MHz Efficiency at VOUT = 5V OUT
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 VOUT 2MHz Efficiency at V = 3.3V OUT Efficiency at VOUT = 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 700kHz VIN 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 A 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
TYPICAL PERFORMANCE CHARACTERISTICS 700kHz Efficiency at VOUT = 5V 700kHz Efficiency at VOUT = 3.3V 2MHz Efficiency at VOUT = 5V OUT
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 VOUT 2MHz Efficiency at V = 3.3V OUT Efficiency at VOUT = 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 700kHz VIN 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 A 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
