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MAX1720EUT Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX1720EUT Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 8 page SOT23, Switched-Capacitor Voltage Inverters with Shutdown _______________________________________________________________________________________ 3 -5 -4 -3 -2 -1 0 020 25 10 15 530 35 404550 OUTPUT VOLTAGE vs. OUTPUT CURRENT OUTPUT CURRENT (mA) VIN = +1.5V VIN = +2V VIN = +3.3V VIN = +5V 0 20 10 40 30 60 50 70 90 80 100 010 1520 525 3035 45 40 50 MAX1720 EFFICIENCY vs. OUTPUT CURRENT OUTPUT CURRENT (mA) VIN = +1.5V VIN = +3.3V VIN = +2V VIN = +5V 0 20 10 40 30 60 50 70 90 80 100 010 1520 525 3035 45 40 50 MAX1719/MAX1721 EFFICIENCY vs. OUTPUT CURRENT OUTPUT CURRENT (mA) VIN = +1.5V VIN = +2V VIN = +3.3V VIN = +5V Typical Operating Characteristics (Circuit of Figure 1, VIN = +5V, SHDN = GND (MAX1719), SHDN = IN (MAX1720/MAX1721), C1 = C2 = C3, TA = +25°C, unless other- wise noted.) ELECTRICAL CHARACTERISTICS (VIN = +5V, SHDN = GND (MAX1719), SHDN = IN (MAX1720/MAX1721), C1 = C2 = 10µF (MAX1720), C1 = C2 = 1µF (MAX1719/MAX1721), circuit of Figure 1, TA = -40°C to +85°C, unless otherwise noted.) (Note 2) VIN (MIN) ≤ VIN ≤ +2.5V RL = 10k Ω +2.5V ≤ VIN ≤ +5.5V VIN (MIN) ≤ VIN ≤ +2.5V +2.5V ≤ VIN ≤ +5.5V IOUT = 0 SHDN = IN (MAX1719), SHDN = GND (MAX1720/MAX1721), OUT is internally forced to GND in shutdown MAX1720 IOUT = 10mA CONDITIONS 0.2 V 0.6 VIL SHDN/ SHDN Input Logic Low VIN - 0.2 V 2.1 VIH SHDN/ SHDN Input Logic High Ω 12 RO, SHDN OUT to GND Shutdown Resistance 65 Ω RO Output Resistance (Note 1) MAX1719/MAX1721 1.6 5.5 MAX1719/MAX1721 1.5 5.5 MAX1720 % 99 Voltage Conversion Efficiency 60 200 kHz 621 fOSC Oscillator Frequency µA 100 ICC Quiescent Current (Note 3) 750 UNITS MIN TYP MAX SYMBOL PARAMETER V VIN Supply Voltage Range MAX1720 Note 1: Capacitor contribution (ESR component plus (1/fOSC) · C) is approximately 20% of output impedance. Note 2: All specifications from -40°C to +85°C are guaranteed by design, not production tested. Note 3: The MAX1719/MAX1720/MAX1721 may draw high supply current during startup, up to the minimum operating supply voltage. To guarantee proper startup, the input supply must be capable of delivering 90mA more than the maximum load current. Continuous, long-term 25 mARMS IOUT Output Current MAX1719/MAX1721 |
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