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LTC3225EDDB-TRMPBF Datasheet(PDF) 4 Page - Linear Technology |
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LTC3225EDDB-TRMPBF Datasheet(HTML) 4 Page - Linear Technology |
4 / 12 page LTC3225 4 3225f Oscillator Frequency vs Supply Voltage Charge Pump Open-Loop Output Resistance vs Temperature (2VIN – VCOUT)/IOUT TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C, CFLY = 1μF, CIN = 2.2μF, CTOP = CBOT, unless otherwise specified) IOUT (mA) 020 4 5 7 80 120 3225 G04 3 2 40 60 100 140 160 1 0 6 VIN = 3.6V VOUT = 4.5V VIN (V) 2.5 0 5 10 15 20 30 3 3.5 4 4.5 3225 G05 5 5.5 25 TA = 85°C TA = 25°C TA = –40°C VIN 20mV/DIV IVIN 200mA/DIV 200ns/DIV 3225 G06 RPROG = 12k 0mA Charging Profile with Unequal Initial Output Capacitor Voltage (Initial VTOP = 1.3V, VBOT = 1V) VIN (V) 2.5 0.88 0.89 0.91 0.92 3 3.5 4 4.5 3225 G07 5 0.93 0.94 0.90 5.5 TA = 25°C TA = 85°C TA = –40°C TEMPERATURE (°C) –40 6 8 10 60 3225 G08 4 2 5 7 9 3 1 0 –15 10 35 85 VIN = 3.6V VOUT = 4.5V SHDN 5V/DIV VCOUT 2V/DIV VTOP-VBOT 500mV/DIV IVIN 300mA/DIV 2s/DIV 3225 G09 VSEL = VIN RPROG = 12k CTOP = CBOT = 1.1F Extra Input Current vs Output Current (IVIN – 2 • IOUT) No-Load Input Current vs Supply Voltage Input Ripple and Input Current Charging Profile with Unequal Initial Output Capacitor Voltage (Initial VTOP = 1V, VBOT = 1.3V) SHDN 5V/DIV VCOUT 2V/DIV VTOP-VBOT 500mV/DIV IVIN 300mA/DIV 2s/DIV 3225 G10 VSEL = VIN RPROG = 12k CTOP = CBOT = 1.1F SHDN 5V/DIV VCOUT 2V/DIV VTOP-VBOT 200mV/DIV IVIN 300mA/DIV 5s/DIV 3225 G11 VSEL = VIN RPROG = 12k CTOP = 1.43F CBOT = 1.1F CTOP INITIAL VOLTAGE = 0V CBOT INITIAL VOLTAGE = 0V SHDN 5V/DIV VCOUT 2V/DIV VTOP-VBOT 200mV/DIV IVIN 300mA/DIV 5s/DIV 3225 G12 VSEL = VIN RPROG = 12k CTOP = 1.1F CBOT = 1.43F CTOP INITIAL VOLTAGE = 0V CBOT INITIAL VOLTAGE = 0V Charging Profile with 30% Mismatch in Output Capacitance (CTOP > CBOT) Charging Profile with 30% Mismatch in Output Capacitance (CTOP < CBOT) |
Similar Part No. - LTC3225EDDB-TRMPBF |
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Similar Description - LTC3225EDDB-TRMPBF |
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