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XC9503 Datasheet(PDF) 3 Page - Torex Semiconductor |
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XC9503 Datasheet(HTML) 3 Page - Torex Semiconductor |
3 / 30 page Block Diagram Absolute Maximum Ratings Ta=25 OC * Voltage goes to Ground. 150 OC mW - 0.3 ~ 12 - 0.3 ~ VDD + 0.3 PARAMETER FB1, 2 Pin Voltage EN1, 2 Pin Voltage PWM1,2 Pin Voltage IEXT ±100 mA Pd Operating Ambient Temperature Storage Temperature EXT1, 2 Pin Voltage VPWM VEXT Topr V EXT1, 2 Pin Current Power Dissipation V VEN - 0.3 ~ 12 V - 0.3 ~ 12 V SYMBOL RATINGS UNITS 2ch. Step-down DC/DC Controller ICs XC9503 Series V Tstg OC - 55 ~ +125 - 40 ~ + 85 VDD Pin Voltage VFB VDD - 0.3 ~ 12 PWM1 + - FB1 VDD EXT1 Vref1 = 0.9V with Soft Start1, EN1 + - PWM/PFM Controller 1 Vref2 = 0.9V with Soft Start 1, EN2 + - PWM/PFM Controller 2 FB2 GND EXT2 OSC Generator Ramp Wave Generator 1 Ramp Wave Generator 2 Error Amp2 Error Amp1 PWM Comparator2 PWM Comparator1 EN1 PWM2 EN2 EN1 to internal circuit EN2 to internal circuit - + 3 |
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