Datasheet LT8550 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | 4-Phase DC/DC Expander with Internal Gate Drivers for Buck Converters |
| Pages / Page | 34 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| File Format / Size | PDF / 3.2 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. REG LDO Load Regulation
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LT8550
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. REG LDO Load Regulation REG Voltage vs REGSNS Voltage REG LDO Current Limit
5.3 5.5 300 T = 25°C T = 25°C T = 25°C REGSNS = 5V 5.2 IAMPN = 0V 5.2 240 VIN = 12V 5.1 4.9 180 TAGE (V) TAGE (V) 5.0 4.6 120 REG VOL REG VOL 4.9 4.3 IAMPN = 0.1V 60 REG LDO CURRENT LIMIT (mA) IAMPN = 0V IAMPN = –0.1V 4.8 4.0 0 0 45 90 135 180 225 3 3.5 4 4.5 5 5.5 6 0 10 20 30 40 50 60 70 80 REG LDO LOAD CURRENT (mA) REGSNS VOLTAGE (V) VIN VOLTAGE (V) 8550 G01 8550 G02 8550 G03
REG Quiescent Current vs REG Quiescent Current vs VIN Voltage, Not Switching Temperature, Not Switching REG LDO Line Regulation
20.0 25.0 5.3 T = 130°C VIN = 6V T = 25°C 22.5 VIN = 12V 5.2 17.5 T = –50°C VIN = 80V 5.1 20.0 5.0 15.0 17.5 4.9 12.5 15.0 TAGE (V) 4.8 12.5 4.7 10.0 REG VOL 4.6 10.0 REG QUIESCENT CURRENT (µA) 4.5 7.5 REG QUIESENCT CURRENT (µA) LOAD = 0mA 7.5 4.4 T = 25°C REGSNS–IAMPN = 5V 5.0 5.0 4.3 5 15 25 35 45 55 65 75 85 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 50 60 70 80 VIN VOLTAGE (V) TEMPERATURE (°C) VIN VOLTAGE (V) 8550 G04 8550 G05 8550 G06
VCC Quiescent Current vs VCC Quiescent Current vs VIN Voltage, Not Switching Temperature, Not Switching VCC UVLO Threshold
5.3 5.3 4.0 T = 25°C VIN = 6V T = 150°C VIN = 12V T = –50°C VIN = 80V 3.8 5.2 5.2 RISING 3.6 5.1 5.1 FALLING 3.4 QUIESCENT CURRENT (mA) 5.0 QUIESCENT CURRENT (mA) 5.0 VCC UVLO THRESHOLD (V) 3.2 V CC V CC 4.9 4.9 3.0 0 10 20 30 40 50 60 70 80 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 V TEMPERATURE (°C) TEMPERATURE (°C) IN VOLTAGE (V) 8550 G08 8550 G09 8550 G07 Rev. 0 6 For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. REG LDO Load Regulation REG Voltage vs REGSNS Voltage REG LDO Current Limit
5.3 5.5 300 T = 25°C T = 25°C T = 25°C REGSNS = 5V 5.2 IAMPN = 0V 5.2 240 VIN = 12V 5.1 4.9 180 TAGE (V) TAGE (V) 5.0 4.6 120 REG VOL REG VOL 4.9 4.3 IAMPN = 0.1V 60 REG LDO CURRENT LIMIT (mA) IAMPN = 0V IAMPN = –0.1V 4.8 4.0 0 0 45 90 135 180 225 3 3.5 4 4.5 5 5.5 6 0 10 20 30 40 50 60 70 80 REG LDO LOAD CURRENT (mA) REGSNS VOLTAGE (V) VIN VOLTAGE (V) 8550 G01 8550 G02 8550 G03
REG Quiescent Current vs REG Quiescent Current vs VIN Voltage, Not Switching Temperature, Not Switching REG LDO Line Regulation
20.0 25.0 5.3 T = 130°C VIN = 6V T = 25°C 22.5 VIN = 12V 5.2 17.5 T = –50°C VIN = 80V 5.1 20.0 5.0 15.0 17.5 4.9 12.5 15.0 TAGE (V) 4.8 12.5 4.7 10.0 REG VOL 4.6 10.0 REG QUIESCENT CURRENT (µA) 4.5 7.5 REG QUIESENCT CURRENT (µA) LOAD = 0mA 7.5 4.4 T = 25°C REGSNS–IAMPN = 5V 5.0 5.0 4.3 5 15 25 35 45 55 65 75 85 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 50 60 70 80 VIN VOLTAGE (V) TEMPERATURE (°C) VIN VOLTAGE (V) 8550 G04 8550 G05 8550 G06
VCC Quiescent Current vs VCC Quiescent Current vs VIN Voltage, Not Switching Temperature, Not Switching VCC UVLO Threshold
5.3 5.3 4.0 T = 25°C VIN = 6V T = 150°C VIN = 12V T = –50°C VIN = 80V 3.8 5.2 5.2 RISING 3.6 5.1 5.1 FALLING 3.4 QUIESCENT CURRENT (mA) 5.0 QUIESCENT CURRENT (mA) 5.0 VCC UVLO THRESHOLD (V) 3.2 V CC V CC 4.9 4.9 3.0 0 10 20 30 40 50 60 70 80 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 V TEMPERATURE (°C) TEMPERATURE (°C) IN VOLTAGE (V) 8550 G08 8550 G09 8550 G07 Rev. 0 6 For more information www.analog.com
