Datasheet MAX1852, MAX1853 (Maxim) - 3

SC70 Inverting Charge Pumps with Shutdown MAX1852/MAX1853 Typical Operating Characteristics
(Circuit of Figure 1, capacitors from Table 2, VIN = +5V, SHDN = IN, TA = +25°C, unless otherwise noted.)
MAX1852 MAX1853 OUTPUT VOLTAGE OUTPUT VOLTAGE MAX1852 vs. LOAD CURRENT vs. LOAD CURRENT EFFICIENCY vs. LOAD CURRENT
-2.0 -2.0 100 90 -2.5 -2.5 VIN = +5V VIN = +3.3V 80 MAX1852/3 toc01 VIN = +3.3V MAX1852/3 toc02 MAX1852/3 toc03 VIN = +3.3V -3.0 -3.0 70 VIN = +2.5V 60 -3.5 -3.5 50 -4.0 -4.0 40 EFFICIENCY (%) OUTPUT VOLTAGE (V) VIN = +5V -4.5 OUTPUT VOLTAGE (V) -4.5 V 30 IN = +5V 20 -5.0 -5.0 10 -5.5 -5.5 0 0 5 10 15 20 25 30 0 5 10 15 20 25 30 0 5 10 15 20 25 30 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA)
MAX1853 NO-LOAD SUPPLY CURRENT EFFICIENCY vs. LOAD CURRENT OUTPUT RESISTANCE vs. INPUT VOLTAGE vs. SUPPLY VOLTAGE
100 23 200 90 22 180 80 VIN = +5V 21 160 MAX1852/3 toc04 MAX1852/3 toc05 ) MAX1852/3 toc06 VIN = +3.3V Ω 70 20 µA) 140 60 VIN = +2.5V 19 120 50 18 MAX1853 MAX1853 100 40 17 80 EFFICIENCY (%) 30 16 MAX1852 SUPPLY CURRENT ( 60 OUTPUT RESISTANCE ( MAX1852 20 15 40 10 14 20 0 13 0 0 5 10 15 20 25 30 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0 1 2 3 4 5 LOAD CURRENT (mA) INPUT VOLTAGE (V) SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT MAX1852 MAX1853 vs. TEMPERATURE OUTPUT RESISTANCE vs. TEMPERATURE OUTPUT RESISTANCE vs. TEMPERATURE
8 28 28 7 26 26 V MAX1852/3 toc07 MAX1852/3 toc08 IN = +2.5V MAX1852/3 toc09 ) 6 24 24 Ω Ω VIN = +2.5V 5 22 22 VIN = +3.3V 4 20 VIN = +3.3V 20 3 18 18 SUPPLY CURRENT (nA) V OUTPUT RESISTANCE ( V OUTPUT RESISTANCE ( IN = +5V 2 16 IN = +5V 16 1 14 14 0 12 12 -40 -15 10 35 60 85 -40 -15 10 35 60 85 -40 -15 10 35 60 85 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C)
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