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XC9201DCCAL Datasheet(PDF) 1 Page - Torex Semiconductor |
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XC9201DCCAL Datasheet(HTML) 1 Page - Torex Semiconductor |
1 / 24 page 1/24 XC9201 Series PWM Controlled Step-Down DC/DC Controllers ■ GENERAL DESCRIPTION The XC9201 series are step-down 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, output voltage is selectable in 100mV increments (semi-custom) 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 100kHz~600kHz 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 0.5μA (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. ■ APPLICATIONS ● Mobile, Cordless phones ● Palm top computers, PDAs ● Portable games ● Cameras, Digital cameras ● Notebook computers ■ TYPICAL APPLICATION CIRCUIT ■ TYPICAL PERFORMANCE CHARACTERISTICS VOUT:5.0V FOSC:330kHz ETR0502_004 ■ FEATURES Stable Operations via Current & Voltage Multiple Feedback Unlimited Options for Peripheral Selection Current Protection Circuit Ceramic Capacitor Compatible Input Voltage Range : 2.5V ~20V Output Voltage Range : 1.2V ~ 16V Oscillation Frequency Range : 100kHz ~ 600kHz Output Current : Up To 3.0A Package : MSOP-8A |
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