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MAX1735EUK30-T Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX1735EUK30-T Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 10 page 200mA, Negative-Output, Low-Dropout Linear Regulator in SOT23 _______________________________________________________________________________________ 5 SHUTDOWN RESPONSE (DRIVEN FROM A POSITIVE VOLTAGE) MAX1735 toc14a TIME (200 µs/div) VSHDN 2V/div 0 VOUT 2V/div 0 SHUTDOWN RESPONSE (DRIVEN BY A NEGATIVE VOLTAGE) MAX1735 toc14b TIME (200 µs/div) VSHDN 2V/div VOUT 2V/div 0 0 -0.5 0 0.5 1.0 1.5 2.0 -6.5 -2.0 -0.5 -5.0 -3.5 1.0 2.5 4.0 5.5 SHUTDOWN-PIN BIAS CURRENT vs. SHUTDOWN-PIN VOLTAGE SHUTDOWN-PIN VOLTAGE (V) Pin Description PIN NAME FUNCTION 1 GND Ground 2IN Regulator Input. Supply voltage can range from -2.5V to -6.5V. Bypass with a 1 µF capacitor to GND (see Capacitor Selection and Regulator Stability). This pin also functions as a heatsink. Solder to a large PC board pad or directly to the PC board power plane to maximize thermal dissipation. 3 SHDN Shutdown Input. Drive SHDN to GND to turn the regulator off, reducing the input current to less than 1nA. Drive SHDN above +1.6V or below -1.6V to enable the regulator. Connect SHDN to IN for always-on operation. 4 SET Dual Mode™ Regulator Feedback Input. Connect SET to GND for the preset output voltage. Use a resistive voltage-divider from OUT to SET to set the output voltage between -1.25V and -5.5V. Regulation setpoint is -1.25V. 5 OUT Regulator Output. OUT supplies up to 200mA in regulation. Bypass to GND with a 1 µF ceramic capacitor. Typical Operating Characteristics (continued) (Circuit of Figure 2, VIN = -4.0V, VOUT = -3.0V, TA = +25°C, unless otherwise specified.) Dual Mode is a trademark of Maxim Integrated Products. |
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