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MAX1837EUT50 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX1837EUT50 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 13 page 24V Internal Switch, 100% Duty Cycle, Step-Down Converters 4 _______________________________________________________________________________________ Typical Operating Characteristics (Circuits of Figures 1 (MAX1836) and 2 (MAX1837), VIN = 12V, SHDN = IN, TA = +25°C.) 3.27 3.29 3.28 3.31 3.30 3.32 3.33 0 100 50 150 200 MAX1836EUT33 OUTPUT VOLTAGE vs. LOAD CURRENT LOAD CURRENT (mA) VIN = 5V VIN = 9V to 12V FIGURE 1 100 95 90 85 80 70 0.1 10 100 1 1000 MAX1836EUT33 EFFICIENCY vs. LOAD CURRENT LOAD CURRENT (mA) 75 VIN = 9V VIN = 12V VIN = 5V FIGURE 1 VOUT = 3.3V 3.27 3.29 3.28 3.31 3.30 3.32 3.33 0 150 200 50 100 250 300 350 MAX1837EUT33 OUTPUT VOLTAGE vs. LOAD CURRENT LOAD CURRENT (mA) VIN = 9V VIN = 5V VIN = 12V FIGURE 2 100 95 90 85 80 70 0.1 10 100 1 1000 MAX1837EUT33 EFFICIENCY vs. LOAD CURRENT LOAD CURRENT (mA) 75 VIN = 9V VIN = 12V VIN = 5V FIGURE 2 VOUT = 3.3V 0 40 20 100 80 60 160 140 120 180 0 100 150 50 200 250 300 350 MAX1837EUT33 SWITCHING FREQUENCY vs. LOAD CURRENT LOAD CURRENT (mA) VIN = 9V VIN = 5V VIN = 12V FIGURE 2 VOUT = 3.3V 3.27 3.29 3.28 3.31 3.30 3.32 3.33 0 4 8 12162024 MAX1837EUT33 OUTPUT VOLTAGE vs. INPUT VOLTAGE INPUT VOLTAGE (V) IOUT = 10mA IOUT = 200mA FIGURE 2 VOUT = 3.3V L1 = 47 µH Note 2: When using the shutdown input, the maximum output voltage allowed with external feedback is 5.5V. If the output voltage is set above 5.5V, connect shutdown to the input. Note 3: Shutdown input minimum slew rate (rising or falling) is 10V/ms. Note 4: Specifications to -40°C are guaranteed by design, not production tested. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS LX Zero-Crossing Threshold -75 +75 mV Shutdown Input Threshold VSHDN VIN = 4.5V to 24V (Note 3) 0.8 2.4 V Shutdown Leakage Current ISHDN VSHDN = 0 or 24V -1 +1 µA ELECTRICAL CHARACTERISTICS (continued) (Circuits of Figures 1 (MAX1836) and 2 (MAX1837), VIN = 12V, SHDN = IN, TA = -40°C to +85°C, unless otherwise noted.) (Note 4) |
Similar Part No. - MAX1837EUT50 |
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Similar Description - MAX1837EUT50 |
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