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FSP3122D33E Datasheet(PDF) 3 Page - FOSLINK SEMICONDUCTOR CO.,LTD |
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FSP3122D33E Datasheet(HTML) 3 Page - FOSLINK SEMICONDUCTOR CO.,LTD |
3 / 10 page 150KHZ 3A PWM BUCK DC/DC CONVERTER 2007-6-12 3/10 FSP3122 ELECTRICAL CHARACTERISTICS (ALL OUTPUT VOLTAGE VERSIONS) Unless otherwise specified, VIN=12V for 3.3V,5V, adjustable version and VIN=24V for the 12V version. ILOAD=0.5A Symbol Paramrter Conditions Min. Typ. Max. Unit 50 IB Feedback bias current VFB=1.3V(Adjustable version only) 40 100 nA 127 150 173 FOSC Oscillator frequency 110 173 KHz VSAT Saturation voltage IOUT=3A no outside circuit VFB=0V force driver on 1.16 1.4 V Max.Duty Cycle(ON) VFB=0V force driver on 100 DC Min.Duty Cycle(OFF) VFB=12V force driver off 0 % ICL Current limit Peak current no outside circuit VFB=0V force driver on 3.6 6.9 A Output=0 no outside circuit VFB=12V force driver off 50 µA IL Output=-1 Output leakage current VIN=40V 5 30 mA IQ Quiescent Current VFB=12V force driver off 7.8 10 mA ISTBY Standby Quiesient Current ON/OFF Pin=5V VIN=40V 85 200 µA VIL Low(regultaor ON) 0.6 VIH ON/OFF pin logic input threshold voltage High(regultaor OFF) 2.0 1.4 V IH ON/OFF pin logic input current VLOGIC=2.5V(OFF) 6 15 IL ON/OFF pin input current VLOGIC=0.5V(ON) 0.02 5 µA TO252-5L 10 TO220-5L 2.5 θJC Thermal Resistence TO263-5L Junction to case 3.5 /W ℃ TO252-5L 30 TO220-5L 28 θJA Thermal Resistence With copper area of approximately 3 in 2 TO263-5L Junction to ambient 30 /W ℃ ELECTRICAL CHARACTERISTICS (CONTINUED) Symbol Parameter Conditions Typ. Limit Unit VFB Output Feedback 4.5V≤VIN≤40V 0.2A≤ILOAD≤3A VOUT programmed for 3V 1.23 1.193/1.18 1.267/1.28 V VMIN VMAX FSP3122-ADJ η Efficiency VIN =12V, ILOAD =3A 72 % VOUT Output voltage 5V≤VIN≤40V 0.2A≤ILOAD≤3A 3.3 3.168/3.135 3.432/3.465 V VMIN VMAX FSP3122-3.3V η Efficiency VIN =12V, ILOAD =3A 72 % VOUT Output voltage 7V≤VIN≤40V 0.2A≤ILOAD≤3A 5 4.8/4.75 5.2/5.25 V VMIN VMAX FSP3122-5V η Efficiency VIN =12V, ILOAD =3A 79 % VOUT Output voltage 15V≤VIN≤40V 0.2A≤ILOAD≤3A 12 11.52/11.4 12.48/12.6 V VMIN VMAX FSP3122-12V η Efficiency VIN =15V, ILOAD =3A 90 % Specifications with boldface type are for full operating temperature range, the other type are for TJ=25 ºC. |
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