Datasheet MAX1852, MAX1853 (Maxim) - 4

SC70 Inverting Charge Pumps with Shutdown Typical Operating Characteristics (continued)
(Circuit of Figure 1, capacitors from Table 2, VIN = +5V, SHDN = IN, TA = +25°C, unless otherwise noted.)
MAX1852 MAX1853 CHARGE-PUMP FREQUENCY CHARGE-PUMP FREQUENCY CHARGE-PUMP FREQUENCY vs. TEMPERATURE vs. TEMPERATURE vs. INPUT VOLTAGE
60 230 59 270 225 58 MAX1852/3 toc10 MAX1852/3 toc11 MAX1852/3 toc12 220 MAX1853 57 220 56 170 55 215 54 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 120 210 53 52 205 70 MAX1852 51 50 200 20
MAX1852/MAX1853
-40 -20 0 20 40 60 80 -40 -20 0 20 40 60 80 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 TEMPERATURE (°C) TEMPERATURE (°C) INPUT VOLTAGE (V)
MAX1852 AND MAX1853 OUTPUT VOLTAGE RIPPLE MAX1852 OUTPUT VOLTAGE vs. INPUT VOLTAGE vs. CAPACITANCE OUTPUT NOISE AND RIPPLE
-2.0 350 ILOAD = 10mA C1 = C2 C1 = C2 = 4.7µF -2.5 300 ILOAD = 10mA MAX1852/3 toc13 MAX1852/3 toc14 MAX1852/3 toc15 -3.0 250 -3.5 200 VOUT -4.0 150 MAX1852 20mV/div OUTPUT VOLTAGE (V) -4.5 100 OUTPUT VOLTAGE RIPPLE (mV) MAX1853 -5.0 50 -5.5 0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.2 0.7 1.2 1.7 2.2 2.7 3.2 3.7 4.2 4.7 10µs/div INPUT VOLTAGE (V) I CAPACITANCE (µF) LOAD = 10mA, AC-COUPLED
MAX1853 MAX1852 MAX1853 OUTPUT NOISE AND RIPPLE STARTUP FROM SHUTDOWN STARTUP FROM SHUTDOWN
MAX1852/3 toc17 MAX1852/3 toc18 C1 = C2 = 1µF MAX1852/3 toc16 SHDN SHDN 0 2V/div 0 VOUT 2V/div 20mV/div 0 0 VOUT VOUT 2µs/div 100µs/div 40µs/div ILOAD = 10mA, AC-COUPLED
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