Datasheet LTC3372 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | 60V Low IQ Buck Controller Plus 4-Channel 8A Configurable Buck DC/DCs |
| Seiten / Seite | 44 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. (HV Controller) TA = 25°C, unless … |
| Revision | A |
| Dateiformat / Größe | PDF / 5.7 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. (HV Controller) TA = 25°C, unless otherwise noted. Efficiency and Power Loss
Modelllinie für dieses Datenblatt
Textversion des Dokuments
LTC3372
TYPICAL PERFORMANCE CHARACTERISTICS (HV Controller) TA = 25°C, unless otherwise noted. Efficiency and Power Loss Efficiency and Power Loss vs Output Current vs Output Current
100 10000 100 10000 V V IN = 12V IN = 12V BURST EFFICIENCY BURST EFFICIENCY 90 V 90 V OUT = 3.3V OUT = 5V 80 1000 80 1000 FCM LOSS FCM LOSS POWER LOSS (mW) POWER LOSS (mW) 70 70 PULSE–SKIPPING PULSE–SKIPPING 60 LOSS 100 60 LOSS 100 50 50 BURST LOSS BURST LOSS 40 10 40 10 EFFICIENCY (%) EFFICIENCY (%) 30 30 PULSE–SKIPPING PULSE–SKIPPING 20 1 20 EFFICIENCY 1 EFFICIENCY 10 10 FCM EFFICIENCY FCM EFFICIENCY 0 0.1 0 0.1 0.0001 0.001 0.01 0.1 1 10 0.0001 0.001 0.01 0.1 1 10 OUTPUT CURRENT (A) OUTPUT CURRENT (A) 3372 G01 3372 G02
Burst Mode Quiescent Current Burst Mode Quiescent Current Efficiency vs VIN vs VIN vs Temperature
100 80 50 VIN = 12V 98 HV Only 70 45 HV+1LV V HV Only OUT = 3.3V 96 HV Only 40 HV+1LV 60 HV+1LV HV Only 94 35 HV+1LV VOUT = 5V 92 50 VOUT = 3.3V 30 VOUT = 5V 90 40 25 VOUT = 3.3V 88 Y CURRENT (µA) Y CURRENT (µA) 20 EFFICIENCY (%) 30 86 SUPPL 15 20 SUPPL 84 10 fSW = 333kHz 82 10 I V 5 OUT = 5V LOAD = 5A 80 0 0 5 10 15 20 25 30 35 40 45 50 55 60 5 10 15 20 25 30 35 40 45 50 55 60 –75 –50 –25 0 25 50 75 100 125 150 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 3372 G03 3372 G04 3372 G05
Output Voltage vs Temperature Shutdown Current vs VIN Shutdown Current vs Temperature Forced Continuous Mode
3.70 10 3.50 5.10 VIN = 12V V 3.65 9 IN = 12V ILOAD = 100mA 5.05 3.60 8 3.45 OUTPUT VOL 3.55 7 3.40 VOUT = 5V 5.00 3.50 6 TAGE (V) 3.45 5 3.35 4.95 TAGE (V) 3.40 4 VOUT = 3.3V 4.90 3.35 3 3.30 OUTPUT VOL SHUTDOWN CURRENT (µA) SHUTDOWN CURRENT (µA) 3.30 V IN 2 V IN 3.25 4.85 3.25 1 3.20 0 3.20 4.80 5 10 15 20 25 30 35 40 45 50 55 60 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 INPUT VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3372 G06 3372 G07 3372 G08 Rev. A 8 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Low Voltage Regulators Applications Information High Voltage Buck Controller Low Voltage Buck Regulators Printed Circuit Board PCB Layout Considerations Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS (HV Controller) TA = 25°C, unless otherwise noted. Efficiency and Power Loss Efficiency and Power Loss vs Output Current vs Output Current
100 10000 100 10000 V V IN = 12V IN = 12V BURST EFFICIENCY BURST EFFICIENCY 90 V 90 V OUT = 3.3V OUT = 5V 80 1000 80 1000 FCM LOSS FCM LOSS POWER LOSS (mW) POWER LOSS (mW) 70 70 PULSE–SKIPPING PULSE–SKIPPING 60 LOSS 100 60 LOSS 100 50 50 BURST LOSS BURST LOSS 40 10 40 10 EFFICIENCY (%) EFFICIENCY (%) 30 30 PULSE–SKIPPING PULSE–SKIPPING 20 1 20 EFFICIENCY 1 EFFICIENCY 10 10 FCM EFFICIENCY FCM EFFICIENCY 0 0.1 0 0.1 0.0001 0.001 0.01 0.1 1 10 0.0001 0.001 0.01 0.1 1 10 OUTPUT CURRENT (A) OUTPUT CURRENT (A) 3372 G01 3372 G02
Burst Mode Quiescent Current Burst Mode Quiescent Current Efficiency vs VIN vs VIN vs Temperature
100 80 50 VIN = 12V 98 HV Only 70 45 HV+1LV V HV Only OUT = 3.3V 96 HV Only 40 HV+1LV 60 HV+1LV HV Only 94 35 HV+1LV VOUT = 5V 92 50 VOUT = 3.3V 30 VOUT = 5V 90 40 25 VOUT = 3.3V 88 Y CURRENT (µA) Y CURRENT (µA) 20 EFFICIENCY (%) 30 86 SUPPL 15 20 SUPPL 84 10 fSW = 333kHz 82 10 I V 5 OUT = 5V LOAD = 5A 80 0 0 5 10 15 20 25 30 35 40 45 50 55 60 5 10 15 20 25 30 35 40 45 50 55 60 –75 –50 –25 0 25 50 75 100 125 150 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 3372 G03 3372 G04 3372 G05
Output Voltage vs Temperature Shutdown Current vs VIN Shutdown Current vs Temperature Forced Continuous Mode
3.70 10 3.50 5.10 VIN = 12V V 3.65 9 IN = 12V ILOAD = 100mA 5.05 3.60 8 3.45 OUTPUT VOL 3.55 7 3.40 VOUT = 5V 5.00 3.50 6 TAGE (V) 3.45 5 3.35 4.95 TAGE (V) 3.40 4 VOUT = 3.3V 4.90 3.35 3 3.30 OUTPUT VOL SHUTDOWN CURRENT (µA) SHUTDOWN CURRENT (µA) 3.30 V IN 2 V IN 3.25 4.85 3.25 1 3.20 0 3.20 4.80 5 10 15 20 25 30 35 40 45 50 55 60 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 INPUT VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3372 G06 3372 G07 3372 G08 Rev. A 8 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Low Voltage Regulators Applications Information High Voltage Buck Controller Low Voltage Buck Regulators Printed Circuit Board PCB Layout Considerations Typical Applications Package Description Revision History Typical Application Related Parts