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XC9237B1CCER Datasheet(PDF) 8 Page - Torex Semiconductor |
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XC9237B1CCER Datasheet(HTML) 8 Page - Torex Semiconductor |
8 / 28 page 8/28 XC9235/XC9236/XC9237 Series SERIES FOSC SETTING VOLTAGE MIN. TYP. MAX. 1200kHz 0.8≦V OUT(E)<1.5 - 250 400μs 1200kHz 1.5≦V OUT(E)<1.8 - 320 500μs 1200kHz 1.8≦V OUT(E)<2.5 - 280 400μs XC9235B/XC9237B 1200kHz 2.5≦V OUT(E)<4.0 - 320 500μs 1200kHz 0.8≦V OUT(E)<2.5 - 280 400μs XC9236B 1200kHz 2.5≦V OUT(E)<4.0 - 320 500μs 3000kHz 0.8≦V OUT(E)<1.8 - 280 400μs XC9235B/ XC9236B/XC9237B 3000kHz 1.8≦V OUT(E)<4.0 - 320 500μs ■ELECTRICAL CHARACTERISTICS (Continued) ●PFM Switching Current (IPFM) by Oscillation Frequency and Setting Voltage ●Input Voltage (VIN) for Measuring Maximum PFM Switching Current (MAXIPFM) Limit FOSC 1.2MHz 3.0MHz C-1 VOUT(E)+0.5V VOUT(E)+1.0V Minimum operating voltage is 2.0V. ex.) Although when VOUT(E) is 1.2V and FOSC is 1.2MHz, (C-1) should be 1.7V, (C-1) becomes 2.0V for the minimum operating voltage 2.0V. ■TYPICAL APPLICATION CIRCUIT ●FOSC=3.0MHz L: 1.5μH (NR3015, TAIYO YUDEN) CIN: 4.7μF (Ceramic) CL: 10μF (Ceramic) ●FOSC=1.2MHz L: 4.7μH (NR4018, TAIYO YUDEN) CIN: 4.7μF (Ceramic) CL: 10μF (Ceramic) (mA) 1.2MHz 3.0MHz SETTING VOLTAGE MIN. TYP. MAX. MIN. TYP. MAX. VOUT(E) ≦1.2V 140 180 240 190 260 350 1.2V<VOUT(E) ≦1.75V 130 170 220 180 240 300 1.8V≦VOUT(E) 120 160 200 170 220 270 ●Soft-Start Time, Setting Voltage(XC9235B/36B/37B Series only) |
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Similar Description - XC9237B1CCER |
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