Datasheet LT8601 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | 42V Triple Monolithic Synchronous Step-Down Regulator |
| Seiten / Seite | 26 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, … |
| Revision | B |
| Dateiformat / Größe | PDF / 2.5 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V
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LT8601
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V and PVIN3 = 3.3V, unless otherwise noted. Minimum On-Time Minimum Off-Time Channel 3 Minimum vs Temperature vs Temperature On-Time vs ISW
90 100 180 ISW = 1A ISW = 1A 162 80 90 144 CHANNEL 1 126 70 80 108 CHANNEL 1 90 60 70 72 CHANNEL 2 54 MINIMUM ON-TIME (ns) MINIMUM OFF-TIME (ns) CHANNEL 2 MINIMUM ON–TIME (ns) 50 60 36 PVIN3 = 2.6V PVIN3 = 3.3V 18 PVIN3 = 5.5V 40 50 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 TEMPERATURE (°C) TEMPERATURE (°C) ISW (A) 8601 G19 8601 G20 8601 G21
Channel 3 Minimum Channel 1 RDS(ON) Channel 2 RDS(ON) Off-Time vs ISW Channel 3 Minimum Off–Time vs ISW vs Temperature vs Temperature
100 500 400 ISW1 = 1A ISW2 = 1A 94 88 400 300 82 76 TOP FET TOP FET (mΩ) 70 300 (mΩ) 200 64 R DSON R DSON 58 MINIMUM OFF–TIME (ns) 200 100 52 BOTTOM FET BOTTOM FET 46 40 100 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 ISW (A) TEMPERATURE (°C) TEMPERATURE (°C) 8601 G22 8601 G23 8601 G24
Channel 3 RDS(ON) vs Temperature Feedback Voltage vs Temperature EN/UVLO Current vs Voltage
300 1.010 0.810 3.0 ISW3 = 1A 250 2.5 1.005 0.805 200 (V) CHANNEL 3 V 2.0 FB CHANNELS 1, 2 (µA) (mΩ) TOP FET 150 1.000 0.800 1.5 R DSON FB CHANNEL 3 (V) I EN/UVLO 100 1.0 CHANNELS 1, 2 V BOTTOM FET 0.995 0.795 50 0.5 0 0.990 0.790 0.0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 45 TEMPERATURE (°C) TEMPERATURE (°C) VEN/UVLO (V) 8601 G25 8601 G26 8601 G27 Rev. B For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V and PVIN3 = 3.3V, unless otherwise noted. Minimum On-Time Minimum Off-Time Channel 3 Minimum vs Temperature vs Temperature On-Time vs ISW
90 100 180 ISW = 1A ISW = 1A 162 80 90 144 CHANNEL 1 126 70 80 108 CHANNEL 1 90 60 70 72 CHANNEL 2 54 MINIMUM ON-TIME (ns) MINIMUM OFF-TIME (ns) CHANNEL 2 MINIMUM ON–TIME (ns) 50 60 36 PVIN3 = 2.6V PVIN3 = 3.3V 18 PVIN3 = 5.5V 40 50 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 TEMPERATURE (°C) TEMPERATURE (°C) ISW (A) 8601 G19 8601 G20 8601 G21
Channel 3 Minimum Channel 1 RDS(ON) Channel 2 RDS(ON) Off-Time vs ISW Channel 3 Minimum Off–Time vs ISW vs Temperature vs Temperature
100 500 400 ISW1 = 1A ISW2 = 1A 94 88 400 300 82 76 TOP FET TOP FET (mΩ) 70 300 (mΩ) 200 64 R DSON R DSON 58 MINIMUM OFF–TIME (ns) 200 100 52 BOTTOM FET BOTTOM FET 46 40 100 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 ISW (A) TEMPERATURE (°C) TEMPERATURE (°C) 8601 G22 8601 G23 8601 G24
Channel 3 RDS(ON) vs Temperature Feedback Voltage vs Temperature EN/UVLO Current vs Voltage
300 1.010 0.810 3.0 ISW3 = 1A 250 2.5 1.005 0.805 200 (V) CHANNEL 3 V 2.0 FB CHANNELS 1, 2 (µA) (mΩ) TOP FET 150 1.000 0.800 1.5 R DSON FB CHANNEL 3 (V) I EN/UVLO 100 1.0 CHANNELS 1, 2 V BOTTOM FET 0.995 0.795 50 0.5 0 0.990 0.790 0.0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 45 TEMPERATURE (°C) TEMPERATURE (°C) VEN/UVLO (V) 8601 G25 8601 G26 8601 G27 Rev. B For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts