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XC9207153MR Datasheet(PDF) 7 Page - Torex Semiconductor |
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XC9207153MR Datasheet(HTML) 7 Page - Torex Semiconductor |
7 / 15 page XC9206 / 9207/ 9208 Series PWM, PWM/PFM Switchable Step-Down DC/DC Converters with Driver Transistor Built-In " ELECTRICAL CHARACTERISTICS XC9206A33CMR, XC9207A33CMR, XC9208A33CMR VOUT=3.3V, FOSC=1.2MHz, Ta=25 OC VOUT=0V, When CE voltage is (XC9206, XC9207) Test condition : Unless otherwise stated, VIN = 5.0V *1 Including Hysteresis operating voltage range. *2 EFFI = [ (Output Voltage x Output Current) / (Input Voltage x Input Current) ] x 100 *3 On resistance = VLX (measurement voltage) / 0.4 *4 *5 CE=VIN, VOUT=0V, Voltage which Lx pin voltage holding "L" level (*1) - - VOUT 1.40 CONDITIONS When connected to ext. components 500 (XC9208) 2.0 100 Maximum Duty Cycle MAXDTY 1 Efficiency (*2) EFFI When connected to ext. components, CE=VIN, IOUT=100mA - 92 Minimum Duty Cycle MINDTY CE=VIN, VOUT=0V Supply Current 1 IDD1 Operating Voltage Range VIN U.V.L.O Voltage VUVLO Maximum Output Current IOUTMAX Output Voltage MAX UNIT CIRCUIT MIN PARAMETER SYMBOL TYP Stand-by Current Istb IDD2 CE=VIN, VOUT=fixed voltage x 1.1V Supply Current 2 Oscillation Frequency FOSC PFM pulse width rate PFMDTY mA % 4 Lx SW ON Resistance RLx CE=VIN, VOUT=0V, ILx=400mA (*3) - 0.4 0.9 Ω Current Limit ILIM 4 CE "H" Voltage VCEH VPWMH CE "L" Voltage VCEL VOUT=0V, When CE voltage is applied Lx determine "L" VPWML PWM "H" Voltage Time until it short-circuits VOUT with GND through 1 Ω of resistance from a state of operation and is set to VOUT=0V from current limit pulse generating. ms 1 12.0 ms -0.1 0.8 When connected to ext. components CE=0V ! VIN, IOUT=1mA -0.1 1 1 - 6.0 5 5 - 5 VIN-0.3 - - V VSS - 0.3 V PWM "L" Voltage 0.1 CE "H" Current ICEH TSS CE=0V, VIN=5.5V, VOUT=0V Soft start time CE "L" Current ICEL The CE/MODE pin of the XC9208A series works also as an external PWM control and PWM/PFM control switching pin. When the IC is in the operation, control is switched to the PWM mode when the CE/MODE pin voltage is equal to or greater than VIN minus 0.3 V, and to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or lower than VIN minus 1.0 V and equal to or greater than VCEH. Latch Time Tlat VIN=CE=5.0V, short VOUT by 1 Ω resistance (*5) - 6 - When connected to ext. components CE=VIN=5.5V, VOUT=0V When connected to ext. components (XC9208 only) (XC9206, 9207) When connected to ext. components VIN=CE=5.0V, VOUT=0V applied Lx determine "H" (XC9208) V 1 CE=VIN, IOUT=30mA 6.0 When connected to ext. components 3.234 3.300 3.366 1.8 - -mA 1 V 1 6.0 1.78 V 2 CE=VIN, VOUT=fixed voltage x 0.9V - 370 585 µA 3 1.00 3 CE=VSS, VOUT=fixed voltage x 1.1V -0 1 µA 3 - 120 1.200 1.380 MHz 180 µA 1 CE=VIN, IOUT=30mA When connected to ext. components 26 32 38 % 1 (XC9207, XC9208 only), CE=VIN, IOUT=1mA 1.020 % 2 CE=VOUT=VIN - - 0 % 2 - - 600 - 5 0.9 - VIN 1.2 - VIN V When connected to ext. components (XC9208 only) -- IOUT=1mA (*4) IOUT=1mA (*4) VIN-1.0 V µA - 0.1 µA Semiconductor Ltd. Data Sheet 7 |
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