Datasheet LTC3376 (Analog Devices) - 9
| Fabricante | Analog Devices |
| Descripción | 20V, 4-Channel Buck DC/DC with 8x Configurable 1.5A Power Stages |
| Páginas / Página | 28 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Formato / tamaño de archivo | PDF / 1.7 Mb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Minimum Off-Time vs. ime vs
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LTC3376
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Minimum Off-Time vs ime vs 1.5A Buck Efficiency vs ILOAD, 1.5A Buck Efficiency vs I LOAD, LOAD, LOAD, Temperature VOUT V =5V OUT = 5V VOUT V =3.3V OUT = 3.3V
94 100 100 90 90 93 80 80 Burst Mode L = 5.6µH 70 L = 4.9µH 70 92 OPERATION L DCR = 12mΩ Burst Mode L DCR = 14.5mΩ 60 f OPERATION OSC = 1MHz 60 fOSC = 2MHz 91 EXTV 50 CC = 3.3V EXTV 50 CC = 3.3V VIN = 8V V 40 IN = 5V V 40 V 90 IN = 12V EFFICIENCY (%) IN = 12V EFFICIENCY (%) V 30 IN = 20V V 30 IN = 20V MINIMUM OFF-TIME (ns) VIN = 8V VIN = 5V 20 20 89 VIN = 12V VIN = 12V VIN = 20V 10 VIN = 20V 10 FORCED CONTINUOUS MODE FORCED CONTINUOUS MODE 88 0 0 –50 –25 0 25 50 75 100 125 1m 10m 100m 1 2 1m 10m 100m 1 2 TEMPERATURE (°C) LOAD CURRENT (A) LOAD CURRENT (A) 3376 G22 3376 G23 3376 G24
1.5A Buck Efficiency vs ILOAD, 1.5A Buck Efficiency vs I LOAD, LOAD, 3A Buck Efficiency vs I LOAD, LOAD, LOAD, VOUT V =1.8V V OUT = 1.8V OUT V =1.2V V OUT = 1.2V OUT=3.3V OUT = 3.3V
100 100 100 90 90 90 80 80 80 L = 2.2µH 70 70 L = 2.2µH 70 Burst Mode L DCR = 13.2mΩ Burst Mode Burst Mode L = 1.5µH L DCR = 6.0mΩ 60 OPERATION f 60 OPERATION 60 OPERATION OSC = 2MHz L DCR = 15mΩ fOSC = 2MHz 50 EXTVCC = 3.3V 50 f 50 EXTV OSC = 2MHz CC = 3.3V VIN = 3.3V 40 40 V 40 IN = 5V V EXTVCC = 3.3V EFFICIENCY (%) IN = 5V EFFICIENCY (%) V EFFICIENCY (%) IN = 12V 30 VIN = 12V 30 VIN = 3.3V 30 VIN = 20V VIN = 3.3V VIN = 5V V 20 IN = 5V V 20 20 IN = 5V VIN = 3.3V VIN = 12V VIN = 12V 10 VIN = 5V 10 V 10 IN = 20V FORCED CONTINUOUS MODE FORCED CONTINUOUS MODE FORCED CONTINUOUS MODE 0 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 1m 10m 100m 1 3 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3376 G25 3376 G26 3376 G27 Rev 0 For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Minimum Off-Time vs ime vs 1.5A Buck Efficiency vs ILOAD, 1.5A Buck Efficiency vs I LOAD, LOAD, LOAD, Temperature VOUT V =5V OUT = 5V VOUT V =3.3V OUT = 3.3V
94 100 100 90 90 93 80 80 Burst Mode L = 5.6µH 70 L = 4.9µH 70 92 OPERATION L DCR = 12mΩ Burst Mode L DCR = 14.5mΩ 60 f OPERATION OSC = 1MHz 60 fOSC = 2MHz 91 EXTV 50 CC = 3.3V EXTV 50 CC = 3.3V VIN = 8V V 40 IN = 5V V 40 V 90 IN = 12V EFFICIENCY (%) IN = 12V EFFICIENCY (%) V 30 IN = 20V V 30 IN = 20V MINIMUM OFF-TIME (ns) VIN = 8V VIN = 5V 20 20 89 VIN = 12V VIN = 12V VIN = 20V 10 VIN = 20V 10 FORCED CONTINUOUS MODE FORCED CONTINUOUS MODE 88 0 0 –50 –25 0 25 50 75 100 125 1m 10m 100m 1 2 1m 10m 100m 1 2 TEMPERATURE (°C) LOAD CURRENT (A) LOAD CURRENT (A) 3376 G22 3376 G23 3376 G24
1.5A Buck Efficiency vs ILOAD, 1.5A Buck Efficiency vs I LOAD, LOAD, 3A Buck Efficiency vs I LOAD, LOAD, LOAD, VOUT V =1.8V V OUT = 1.8V OUT V =1.2V V OUT = 1.2V OUT=3.3V OUT = 3.3V
100 100 100 90 90 90 80 80 80 L = 2.2µH 70 70 L = 2.2µH 70 Burst Mode L DCR = 13.2mΩ Burst Mode Burst Mode L = 1.5µH L DCR = 6.0mΩ 60 OPERATION f 60 OPERATION 60 OPERATION OSC = 2MHz L DCR = 15mΩ fOSC = 2MHz 50 EXTVCC = 3.3V 50 f 50 EXTV OSC = 2MHz CC = 3.3V VIN = 3.3V 40 40 V 40 IN = 5V V EXTVCC = 3.3V EFFICIENCY (%) IN = 5V EFFICIENCY (%) V EFFICIENCY (%) IN = 12V 30 VIN = 12V 30 VIN = 3.3V 30 VIN = 20V VIN = 3.3V VIN = 5V V 20 IN = 5V V 20 20 IN = 5V VIN = 3.3V VIN = 12V VIN = 12V 10 VIN = 5V 10 V 10 IN = 20V FORCED CONTINUOUS MODE FORCED CONTINUOUS MODE FORCED CONTINUOUS MODE 0 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 1m 10m 100m 1 3 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3376 G25 3376 G26 3376 G27 Rev 0 For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts