Datasheet LTC3729L-6 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | PolyPhase, Synchronous Step-Down Switching Regulator |
| Pages / Page | 28 / 5 — TYPICAL PERFOR A CE CHARACTERISTICS. Supply Current vs Input Voltage. … |
| File Format / Size | PDF / 356 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS. Supply Current vs Input Voltage. INTVCC and EXTVCC Switch. and Mode. EXTV
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LTC3729L-6
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Input Voltage INTVCC and EXTVCC Switch and Mode EXTV Voltage vs Temperature CC Voltage Drop
1000 250 5.05 ON TA = 25°C INTV EXTV CC VOLTAGE CC PIN OPEN 5.00 800 200 µA) TA = 25°C 4.95 600 150 4.90 SWITCH VOLTAGE (V) CC 400 4.85 100 VOLTAGE DROP (mV) CC SUPPLY CURRENT ( 4.80 200 EXTV 50 AND EXTV EXTVCC SWITCHOVER THRESHOLD CC 4.75 SHUTDOWN INTV 0 0 4.70 0 5 10 15 20 25 30 0 10 20 30 40 – 50 – 25 0 25 50 75 100 125 INPUT VOLTAGE (V) CURRENT (mA) TEMPERATURE (°C) 3729L-6 G04 3729L-6 G05 3729L-6 G06
Maximum Current Sense Threshold Maximum Current Sense Threshold vs Percent of Nominal Output Internal 5V LDO Line Reg vs Duty Factor Voltage (Foldback)
5.1 75 80 TA = 25°C TA = 25°C 5.0 70 60 4.9 50 50 4.8 (mV) (mV) 40 VOLTAGE (V) 4.7 CC SENSEV SENSEV 30 25 INTV 4.6 20 4.5 I 10 LOAD = 1mA TA = 25°C 4.4 0 0 0 5 10 15 20 25 30 0 20 40 60 80 100 0 25 50 75 100 INPUT VOLTAGE (V) DUTY FACTOR (%) PERCENT ON NOMINAL OUTPUT VOLTAGE (%) 3729L-6 G07 3729L-6 G08 3729L-6 G09
Maximum Current Sense Threshold Maximum Current Sense Threshold Current Sense Threshold vs VRUN/SS (Soft-Start) vs Sense Common Mode Voltage vs ITH Voltage
80 80 90 V T SENSE(CM) = 1.6V A = 25°C TA = 25°C T 80 A = 25°C 70 76 60 60 50 72 40 (mV) (mV) (mV) 40 30 SENSE SENSE SENSE 20 V V 68 V 10 20 0 64 –10 –20 0 60 –30 0 1 2 3 4 5 6 0 1 2 3 4 5 0 0.5 1 1.5 2 2.5 VRUN/SS (V) COMMON MODE VOLTAGE (V) VITH (V) 3729L-6 G10 3729L-6 G11 3729L-6 G12 sn3729l6 3729l6fs 5
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Input Voltage INTVCC and EXTVCC Switch and Mode EXTV Voltage vs Temperature CC Voltage Drop
1000 250 5.05 ON TA = 25°C INTV EXTV CC VOLTAGE CC PIN OPEN 5.00 800 200 µA) TA = 25°C 4.95 600 150 4.90 SWITCH VOLTAGE (V) CC 400 4.85 100 VOLTAGE DROP (mV) CC SUPPLY CURRENT ( 4.80 200 EXTV 50 AND EXTV EXTVCC SWITCHOVER THRESHOLD CC 4.75 SHUTDOWN INTV 0 0 4.70 0 5 10 15 20 25 30 0 10 20 30 40 – 50 – 25 0 25 50 75 100 125 INPUT VOLTAGE (V) CURRENT (mA) TEMPERATURE (°C) 3729L-6 G04 3729L-6 G05 3729L-6 G06
Maximum Current Sense Threshold Maximum Current Sense Threshold vs Percent of Nominal Output Internal 5V LDO Line Reg vs Duty Factor Voltage (Foldback)
5.1 75 80 TA = 25°C TA = 25°C 5.0 70 60 4.9 50 50 4.8 (mV) (mV) 40 VOLTAGE (V) 4.7 CC SENSEV SENSEV 30 25 INTV 4.6 20 4.5 I 10 LOAD = 1mA TA = 25°C 4.4 0 0 0 5 10 15 20 25 30 0 20 40 60 80 100 0 25 50 75 100 INPUT VOLTAGE (V) DUTY FACTOR (%) PERCENT ON NOMINAL OUTPUT VOLTAGE (%) 3729L-6 G07 3729L-6 G08 3729L-6 G09
Maximum Current Sense Threshold Maximum Current Sense Threshold Current Sense Threshold vs VRUN/SS (Soft-Start) vs Sense Common Mode Voltage vs ITH Voltage
80 80 90 V T SENSE(CM) = 1.6V A = 25°C TA = 25°C T 80 A = 25°C 70 76 60 60 50 72 40 (mV) (mV) (mV) 40 30 SENSE SENSE SENSE 20 V V 68 V 10 20 0 64 –10 –20 0 60 –30 0 1 2 3 4 5 6 0 1 2 3 4 5 0 0.5 1 1.5 2 2.5 VRUN/SS (V) COMMON MODE VOLTAGE (V) VITH (V) 3729L-6 G10 3729L-6 G11 3729L-6 G12 sn3729l6 3729l6fs 5
