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XC9201C00AKL Datasheet(PDF) 1 Page - Torex Semiconductor |
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XC9201C00AKL Datasheet(HTML) 1 Page - Torex Semiconductor |
1 / 20 page PWM Controlled Step-Down DC/DC Converters Series 535 5 The XC9201 series are step-up multiple current and voltage feedback DC/DC controller ICs. Current sense, clock frequencies and amp feedback gain can all be externally regulated. A stable power supply is possible with output currents of up to 3.0A.With output voltage fixed internally, VOUT is selectable in 0.1V steps within a 1.2V - 16.0V range (± 2.5%). For output voltages outside this range, we recommend the FB version which has a 0.9V internal reference voltage. Using this version, the required output voltage can be set-up using 2 external resistors. Switching frequencies can also be set-up externally within a range of 100~600 kHz and therefore frequencies suited to your particular application can be selected. With the current sense function, peak currents (which flow through the driver transistor and the coil) can be controlled. Soft-start time can be adjusted using external resistors and capacitors. During shutdown (CE pin =L), consumption current can be reduced to as little as 0.5 µA (TYP.) or less and with U.V.L.O (Under Voltage Lock Out) built-in, the external transistor will be automatically shut off below the regulated voltage. ■General Description GStable Operations via Current & Voltage Multiple Feedback GUnlimited Options for Peripheral Selection GCurrent Protection Circuit GCeramic Capacitor Compatible GMobile, Cordless phones GPalm top computers, PDAs GPortable games GCameras, Digital cameras GLaptops ■Features ■Applications NInput Voltage Range : 2.5V ~20V NOutput Voltage Range : 1.2V ~ 16V NOscillation Frequency Range : 100kHz ~ 600kHz NOutput Current : up to 3.0A NCeramic Capacitor Compatible NMSOP-8A Package 0 20 40 60 80 100 0.1 1 10 100 1000 10000 Output Current:IOUT(mA) 7.2V 15.0V VIN=5.4V 10.0V 12.0V 22μH 10KΩ 220pF CLK 5 1 EXT 2 Isen 3 VIN 4 CE/SS VOUT 7 GAIN 6 Vss 8 470pF 40μF+220μF 33mΩ XP132A11A1SR U3FWJ44N 1μF 240kΩ 0.33μF 94μF ■Typical Application Circuit ■Typical Performance Characteristic VOUT:5.0V FOSC:330kHz 05S_1XC9201/9202新規 02.09.12 15:16 ページ 535 |
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