Datasheet LTC3561A (Analog Devices) - 5
| Hersteller | Analog Devices |
| Beschreibung | 1A, 4MHz, Synchronous Step-Down DC/DC Converter |
| Seiten / Seite | 20 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VIN = 3.6V, fO = 1MHz, … |
| Dateiformat / Größe | PDF / 364 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VIN = 3.6V, fO = 1MHz, unless otherwise noted. Supply Current vs. Temperature
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LTC3561A
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.6V, fO = 1MHz, unless otherwise noted. Supply Current vs Temperature Switch Leakage vs Input Voltage Switch Leakage vs Temperature
360 600 V 2500 OUT = 1.8V 340 ILOAD = 0A 500 320 2000 300 MAIN SWITCH 400 1500 280 300 SYNCHRONOUS 260 1000 SWITCH 200 SUPPLY CURRENT (mA) 240 SWITCH LEAKAGE (pA) SWITCH LEAKAGE (nA) 500 SYNCHRONOUS MAIN SWITCH 220 SWITCH 100 200 0 0 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) INPUT VOLTAGE(V) TEMPERATURE (°C) 3561A G14 3561A G15 3561A G16
Switching Waveforms Start-Up from Shutdown
SHDN/RT SW 2V/DIV 2V/DIV VOUT VOUT 50mV/DIV 1V/DIV AC COUPLED IL IL 200mA/DIV 1A/DIV V 3561A G20 IN = 3.6V 3561A G18 4µs/DIV VIN = 3.6V 200µs/DIV VOUT = 1.8V VOUT = 1.8V ILOAD = 5mA ILOAD = 0A
Start-Up from Shutdown Load Step Load Step
SHDN/RT V V 2V/DIV OUT OUT 100mV/DIV 100mV/DIV AC COUPLED AC COUPLED VOUT I I 1V/DIV L L 1A/DIV 1A/DIV ILOAD ILOAD IL 1A/DIV 1A/DIV 1A/DIV V 3561A G23 IN = 3.6V 3561A G21 200µs/DIV VIN = 3.6V 40µs/DIV VIN = 3.6V 3561A G24 40µs/DIV VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V ILOAD = 1A ILOAD = 0A to 1A ILOAD = 20mA to 1A 3561afa For more information www.linear.com/LTC3561A 5
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.6V, fO = 1MHz, unless otherwise noted. Supply Current vs Temperature Switch Leakage vs Input Voltage Switch Leakage vs Temperature
360 600 V 2500 OUT = 1.8V 340 ILOAD = 0A 500 320 2000 300 MAIN SWITCH 400 1500 280 300 SYNCHRONOUS 260 1000 SWITCH 200 SUPPLY CURRENT (mA) 240 SWITCH LEAKAGE (pA) SWITCH LEAKAGE (nA) 500 SYNCHRONOUS MAIN SWITCH 220 SWITCH 100 200 0 0 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) INPUT VOLTAGE(V) TEMPERATURE (°C) 3561A G14 3561A G15 3561A G16
Switching Waveforms Start-Up from Shutdown
SHDN/RT SW 2V/DIV 2V/DIV VOUT VOUT 50mV/DIV 1V/DIV AC COUPLED IL IL 200mA/DIV 1A/DIV V 3561A G20 IN = 3.6V 3561A G18 4µs/DIV VIN = 3.6V 200µs/DIV VOUT = 1.8V VOUT = 1.8V ILOAD = 5mA ILOAD = 0A
Start-Up from Shutdown Load Step Load Step
SHDN/RT V V 2V/DIV OUT OUT 100mV/DIV 100mV/DIV AC COUPLED AC COUPLED VOUT I I 1V/DIV L L 1A/DIV 1A/DIV ILOAD ILOAD IL 1A/DIV 1A/DIV 1A/DIV V 3561A G23 IN = 3.6V 3561A G21 200µs/DIV VIN = 3.6V 40µs/DIV VIN = 3.6V 3561A G24 40µs/DIV VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V ILOAD = 1A ILOAD = 0A to 1A ILOAD = 20mA to 1A 3561afa For more information www.linear.com/LTC3561A 5