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XC9509 Datasheet(PDF) 5 Page - Torex Semiconductor |
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XC9509 Datasheet(HTML) 5 Page - Torex Semiconductor |
5 / 9 page Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Parallel plus Voltage Detector " ELECTRICAL CHARACTERISTICS (Continued) % Detector (2.7V product) Test Conditions : Unless otherwise stated; * VROUT(T) : Setting Output Voltage DC/DC : VIN=3.6V [@ DCOUT:2.2V] VD : VIN=6.0V VR : VIN = VROUT(T) + 1.0 (V) [When VROUT(T) <1.4V, VIN =2.4V] note 1 : VD operates when in stand-by mode. note 2 : Including hysteresis operating voltage range. note 3 : On resistance = 0.05V / ILX note 4 : EFFI = { ( Output Voltage x Output Current ) / ( Input Voltage x Input Current) } x 100 note 5 : Time until it short-circuits DCOUT with GND through 1 Ω of resistance from a state of operation and is set to DCOUT=0V from current limit pulse generating. note 6 : Vdif = (VIN1 (note 7) - VROUT1 (note 8 ) ) note 7 : VIN 1 = The input voltage when VROUT1 appears as input voltage is gradually decreased. note 8 : VROUT1 = A voltage equal to 98% of the output voltage whenever an amply stabilized IOUT {VROUT(T) + 1.0V} is input. Temperature Characteristics ! Topr # VDF 8 - -40 OC<Topr<85OC ±100 - ppm / OC Output Voltage ! VDF % - 58 2.646 2.754 Hysteresis Range VHYS 3 TEST CIRCUIT V 8 Detect Voltage VDF 2.700 VDOUT=0.5V VD Output Current IVD 1 UNITS XC9509 Series CONDITIONS Ta=25 OC PARAMETER SYMBOL TYP. MAX. MIN. -- mA 9 Semiconductor Ltd. Data Sheet 5 |
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