Datasheet LTC3633A, LTC3633A-1 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | Dual Channel 3A, 20V Monolithic Synchronous Step-Down Regulator |
| Pages / Page | 30 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. TJ = 25°C, VIN1 = VIN2 = 12V, fSW = … |
| File Format / Size | PDF / 417 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. TJ = 25°C, VIN1 = VIN2 = 12V, fSW = 1MHz, L = 1µH. unless otherwise noted
Model Line for this Datasheet
Text Version of Document
LTC3633A/LTC3633A-1
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, VIN1 = VIN2 = 12V, fSW = 1MHz, L = 1µH unless otherwise noted. Internal MOSFET RDS(ON) Quiescent Current vs VIN vs Temperature Burst Mode Operation Shutdown Current vs VIN
200 900 24 180 800 22 20 160 700 90°C 18 140 600 25°C 16 120 TOP SWITCH (mΩ) 500 –40°C 14 100 (µA) (µA) 12 I Q 400 I Q 80 10 R DS(ON) 300 8 60 BOTTOM SWITCH 200 6 40 4 20 100 2 0 0 0 –50 –25 0 25 50 75 100 125 4 6 8 10 12 14 16 18 20 4 6 8 10 12 14 16 18 20 TEMPERATURE (°C) VIN (V) VIN (V) 3633a G10 3633a G11 3633a G12
Valley Current Limit TRACKSS Pull-Up Current Switch Leakage vs Temperature vs Temperature vs Temperature
10000 3.9 2.0 SYNCHRONOUS SWITCH 9000 MAIN SWITCH 1.8 3.8 8000 7000 1.6 3.7 6000 (µA) 1.4 5000 (A) 3.6 I LIM 4000 1.2 I TRACKSS 3.5 3000 1.0 LEAKAGE CURRENT (nA) 2000 3.4 0.8 1000 0 3.3 0.6 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3633a G13 3633a G14 3633a G15
V2P5 Load Regulation Burst Mode Operation Load Step
2.506 V 2.504 SW OUT AC-COUPLED 10V/DIV 100mV/DIV 2.502 VOUT 50mV/DIV 2.500 V2P5(V) IL 2A/DIV 2.498 IL 1A/DIV 2.496 5µs/DIV 3633a G17 20µs/DIV 3633a G18 VOUT = 1.8V VOUT = 1.8V 2.494 ILOAD = 100mA ILOAD = 100mA to 3A 0 2 4 6 8 10 CITH = 220pF I R LOAD (mA) ITH = 13kΩ 3633a G16 3633a1fb 6 For more information www.linear.com/LTC3633A Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, VIN1 = VIN2 = 12V, fSW = 1MHz, L = 1µH unless otherwise noted. Internal MOSFET RDS(ON) Quiescent Current vs VIN vs Temperature Burst Mode Operation Shutdown Current vs VIN
200 900 24 180 800 22 20 160 700 90°C 18 140 600 25°C 16 120 TOP SWITCH (mΩ) 500 –40°C 14 100 (µA) (µA) 12 I Q 400 I Q 80 10 R DS(ON) 300 8 60 BOTTOM SWITCH 200 6 40 4 20 100 2 0 0 0 –50 –25 0 25 50 75 100 125 4 6 8 10 12 14 16 18 20 4 6 8 10 12 14 16 18 20 TEMPERATURE (°C) VIN (V) VIN (V) 3633a G10 3633a G11 3633a G12
Valley Current Limit TRACKSS Pull-Up Current Switch Leakage vs Temperature vs Temperature vs Temperature
10000 3.9 2.0 SYNCHRONOUS SWITCH 9000 MAIN SWITCH 1.8 3.8 8000 7000 1.6 3.7 6000 (µA) 1.4 5000 (A) 3.6 I LIM 4000 1.2 I TRACKSS 3.5 3000 1.0 LEAKAGE CURRENT (nA) 2000 3.4 0.8 1000 0 3.3 0.6 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3633a G13 3633a G14 3633a G15
V2P5 Load Regulation Burst Mode Operation Load Step
2.506 V 2.504 SW OUT AC-COUPLED 10V/DIV 100mV/DIV 2.502 VOUT 50mV/DIV 2.500 V2P5(V) IL 2A/DIV 2.498 IL 1A/DIV 2.496 5µs/DIV 3633a G17 20µs/DIV 3633a G18 VOUT = 1.8V VOUT = 1.8V 2.494 ILOAD = 100mA ILOAD = 100mA to 3A 0 2 4 6 8 10 CITH = 220pF I R LOAD (mA) ITH = 13kΩ 3633a G16 3633a1fb 6 For more information www.linear.com/LTC3633A Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description Typical Application Related Parts
