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AP2008SG-13 Datasheet(PDF) 5 Page - Diodes Incorporated |
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AP2008SG-13 Datasheet(HTML) 5 Page - Diodes Incorporated |
5 / 8 page AP2008 PWM BUCK CONTROLLER AP2008 Rev. 2 5 of 8 FEBRUARY 2009 www.diodes.com © Diodes Incorporated Electrical Characteristics (Continued) (TA=25ºC, VCC=6V, f=200 Khz) Output section Symbol Parameter Conditions Min Typ. Max Unit ILEAK Leakage current VO = 20V 10 µA IDRV Sink current VIN= 12V 200 mA Source current VIN= 12V 200 mA VSAT Output saturation voltage IO = 10 mA 1.0 1.5 V ISC Short-circuit output current VO = 6V 120 mA PWM comparator Symbol Parameter Conditions Min Typ. Max Unit VT0 Input threshold voltage at f = 10 KHz (COMP) CT=6800pF 0.6 0.7 V VT100 Maximum duty cycle 1.2 1.3 V Total device Symbol Parameter Conditions Min Typ. Max Unit ICCA Average supply current CT = 270pF 6 10 mA Soft Start Symbol Parameter Conditions Min Typ. Max Unit VSS Soft-start Voltage 2.3 V ISS Constant Charge Current 20 µA Typical Application Circuit L1 10uH R1 R2 C3 470uF Output Step-Down DC/DC converter C2 10nF (Optional) Vcc = 12V P mos Q1 C6 220nF C5 50nF C4 270pF 1K 4K C1 470uF 5A R3 30K C4 50nF (Optional) 1V/5A |
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