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AP1509-12V Datasheet(PDF) 5 Page - Diodes Incorporated |
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AP1509-12V Datasheet(HTML) 5 Page - Diodes Incorporated |
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5 / 13 page  AP1509 150KHz, 2A PWM BUCK DC/DC CONVERTER AP1509 Document number: DS31016 Rev. 4 - 2 5 of 13 www.diodes.com June 2010 © Diodes Incorporated Electrical Characteristics Unless otherwise specified, VIN = 12V for 3.3V, 5V, adjustable version and VIN = 18V for the 12V version. ILOAD = 0.5A Specifications with boldface type are for full operating temperature range, the other type are for TJ = 25ºC. Symbol Parameter Conditions Min Typ. Max Unit IFB Feedback Bias Current VFB = 1.3V (Adjustable version only) -10 -50 nA -100 FOSC Oscillator Frequency 127 150 173 KHz 110 173 FSCP Oscillator Frequency of Short Circuit Protect When current limit occurred and VFB < 0.5V, Ta = 25 oC 10 30 50 KHz VSAT Saturation Voltage IOUT = 2A No outside circuit VFB = 0V force driver on 1.25 1.4 V 1.5 DC Max. Duty Cycle (ON) VFB = 0V force driver on 100 % Min. Duty Cycle (OFF) VFB = 12V force driver off 0 ICL Current Limit Peak current No outside circuit VFB = 0V force driver on 3 A IL Output = 0 Output Leakage Current No outside circuit VFB = 12V force driver off -200 uA Output = -1 VIN = 22V -5 mA IQ Quiescent Current VFB = 12V force driver off 5 10 mA ISTBY Standby Quiescent Current ON/OFF pin = 5V VIN = 22V 70 150 uA 200 VIL ON/OFF Pin Logic Input Threshold Voltage Low (regulator ON) - 1.3 0.6 V VIH High (regulator OFF) 2.0 - IH ON/OFF Pin Logic Input Current VLOGIC = 2.5V (OFF) -0.01 uA IL ON/OFF Pin Input Current VLOGIC = 0.5V (ON) -0.1 -1 θ JA Thermal Resistance SOP-8L Junction to case 15 oC/W θ JC Thermal Resistance with a copper area of approximately 3 in 2 SOP-8L Junction to ambient 70 oC/W |
Similar Part No. - AP1509-12V |
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