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LTC4425IDD Datasheet(PDF) 5 Page - Linear Technology |
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LTC4425IDD Datasheet(HTML) 5 Page - Linear Technology |
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5 / 20 page  LTC4425 5 4425p TYPICAL PERFORMANCE CHARACTERISTICS Charge Current vs (VIN–VOUT) Differential PROG Pin Voltage vs (VIN – VOUT) Differential VIN Quiescent Current vs Supply and Temperature (VIN ≥ VOUT) Charge Current vs Temperature in Thermal Regulation Charge Current vs VOUT in Thermal Regulation VOUT Quiescent Current vs VOUT and Temperature (VIN ≥ VOUT) LDO Regulation Voltage vs Charge Current LDO Regulation Voltage vs Temperature Charger FET On-Resistance vs Supply IOUT (mA) 0 3.255 3.290 3.285 3.280 3.275 3.270 3.265 3.260 3.295 200 1000 1200 400 600 800 3586 G35 VIN = 3.8V, IOUT = 10mA RPROG = 1k VOUT SET FOR 3.3V TEMPERATURE (°C) –45 3.277 3.285 3.284 3.283 3.282 3.281 3.280 3.278 3.279 3.286 –30 30 45 60 75 90 –15 0 15 4425 G02 VIN = 3.8V VOUT SET FOR 3.3V INPUT VOLTAGE (V) 2.7 0 70 60 50 40 30 10 20 80 3 4.2 4.5 4.8 3.3 3.6 3.9 4425 G03 25°C 90°C –45°C VIN TO VOUT DIFFERENTIAL (V) 0 0 1000 800 600 200 400 1200 0.1 0.5 0.6 0.7 0.8 0.9 1 0.2 0.3 0.4 4425 G04 NORMAL MODE VIN = 3.8V RPROG = 1k LDO MODE (FB GROUNDED) VIN TO VOUT DIFFERENTIAL (V) 0 0 1000 800 400 200 600 1200 0.1 0.5 0.6 0.7 0.8 0.9 1 0.2 0.3 0.4 4425 G05 VIN = 3.8V RPROG = 1k NORMAL MODE LDO MODE (FB GROUNDED) TEMPERATURE (°C) –45 0 20 15 5 10 25 –25 55 75 –5 15 35 4425 G06 VIN = 3.8V VIN = 2.7V TEMPERATURE (°C) –45 0 800 1000 600 200 400 1200 –30 30 45 60 75 90 105 120 –15 0 15 4425 G07 VIN = 3.8V, VOUT = 3.5V RPROG = 1k, FB GROUNDED OUTPUT VOLTAGE (V) 0 0 2000 2500 1500 500 1000 3000 0.5 2.5 3 3.5 4 4.5 1 1.5 2 4425 G08 THERMAL REGULATION ON-CHIP POWER DISSIPATION ~4W CASE TEMP ~100°C VIN = 5V PROG PIN SHORTED TO GND FB PIN SHORTED TO GND AMBIENT TEMP 24°C TEMPERATURE (°C) –45 0 8 10 12 14 16 18 6 2 4 20 –25 55 75 –5 15 35 4425 G09 VIN = 3.8V VIN < VOUT VOUT = 2.7V |
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