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MAX1687EUE Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX1687EUE Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 12 page Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM 4 _______________________________________________________________________________________ _____________________________Typical Operating Characteristics (continued) (VIN = +3.3V, VOUT = 5V, VLIM = 1V, Figures 6b and 7, TA = +25°C, unless otherwise noted.) 300 450 400 350 500 550 600 650 700 750 800 100 200 150 250 300 350 400 MAX1688 IPEAK vs. VOUT DROOP VOUT DROOP (mV) RCHG = 40.2k 0 800 700 600 500 400 300 200 100 15 20 25 30 35 40 MAX1688 PEAK INDUCTOR CURRENT vs. RCHG (1A GSM LOAD) RCHG (kΩ) 0 100 200 300 400 500 600 700 800 15 20 25 30 35 40 MAX1688 PEAK BATTERY CURRENT vs. RCHG (1A GSM LOAD) RCHG (kΩ) 1.5 2.5 2.0 3.5 3.0 4.0 4.5 -40 20 40 -20 0 60 80 100 TEMPERATURE (°C) NO-LOAD BATTERY INPUT CURRENT vs. TEMPERATURE (VOUT = 5V, VLIM = 1V ) VIN = 5V VIN = 3.3V VIN = 2.7V VIN = 6V REFERENCE VOLTAGE vs. REFERENCE CURRENT (VIN = 3.3V, VOUT = 5V) IREF (µA) 1.245 1.200 1 1000 100 10 1.215 1.205 1.235 1.225 1.250 1.220 1.210 1.240 1.230 1.245 1.247 1.249 1.251 1.253 TEMPERATURE (°C) -40 20 40 -20 0 60 80 100 REFERENCE VOLTAGE vs. TEMPERATURE (VIN = 3.3V, VOUT = 5V) 1200 0 1 10 100 SWITCHING FREQUENCY vs. INDUCTANCE (VIN = 3.3V, VOUT = 5V, ILOAD = 100mA, VLIM = 1V) 200 INDUCTANCE ( µH) 600 400 1000 800 |
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