Datasheet XCL303, XCL304 (Torex) - 4

XCL303/XCL304 Series
■ELECTRICAL CHARACTERISTICS XCL303A052KR-G, XCL304A052KR-G Ta=25˚C PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT Input Voltage VIN - 2.7 - 5.5 V - VIN=VCE=3.7V, The voltage which LX starts FB Voltage VFB(E) (*2) 0.49 0.50 0.51 V ① oscillation while VFB is increasing. VREF Voltage VREF VIN=VCE=3.7V 1.56 1.60 1.64 V ① VIN=VCE,VFB=VFB(T)×1.025 (*3), UVLO Detection Voltage VUVLOD 1.85 2.10 - V ① Voltage which Lx pin holding “L” level (*1) VIN=VCE, VFB(T)×1.025 (*3), UVLO Release Voltage VUVLOR - 2.25 2.60 V ① Voltage which Lx pin holding “H” level (*1) UVLO Hysteresis Width VUVLOH VUVLOH=VUVLOR - VUVLOD 0.08 0.15 0.25 V - Supply Current IDD VIN=VCE=5.5V, VFB=VFB(T)×0.975 (*3) 215 250 310 μA ② Stand-by Current ISTB VIN=5.5V, VCE=0V - 0 0.1 μA ② PFM Switch Current When connected to external components, IPFM - 300 - mA ③ (XCL304 Series) IOUT=1mA FB Voltage rise up time, Soft Start Time tSS VFB=0V→VFB(T)×0.95 (*3), VCE=0V→VIN, 0.5 1.5 2.5 ms ③ IOUT=1mA, CVREF=0.47uF Oscillation Frequency fOSC VFB=VFB(T)×1.025 (*3) 2.1 2.5 2.9 MHz ① Maximum ON Time tONMAX VFB=VFB(T)×1.025 (*3) 300 350 385 ns ① Minimum ON Time tONMIN VFB=VFB(T)×0.975 (*3) - - 0 ns ① When connected to external components, Efficiency EFFI - 75 - % ③ VOUT=-3.3V, IOUT =100mA LX SW "H" ON R Resistance (*4) LXH VIN=5.0V, ILX=100mA - 0.50 0.65 Ω ④ LX SW "L" Leakage I Current LEAKL VIN=5.5V, VCE=0V, VLX=0V - 0.01 0.1 μA ⑤ Maximum Current Limit ILIM When connected to external components - 1100 - mA ① VREF Voltage Temperature VREF / Characteristics (VREF・topr) -40℃< Topr < 105℃ - ±50 - ppm / oC ① FB Voltage Temperature VFB / Characteristics (VFB・topr) -40℃< Topr < 105℃ - ±50 - ppm / oC ① VIN=5.5V, VFB=VFB(T)×1.025 (*3) , CE "H" Voltage VCEH Applied voltage to VCE, voltage changes LX to 1.2 - 5.5 V ① "H" level (*1) VIN=5.5V, VFB=VFB(T)×1.025 (*3) , CE "L" Voltage VCEL Applied voltage to VCE, voltage changes LX to GND - 0.4 V ① "L" level (*1) CE "H" Current ICEH VIN=VCE=5.5V -0.1 - 0.1 μA ⑥ CE "L" Current ICEL VIN=5.5V, VCE=0V -0.1 - 0.1 μA ⑥ FB "H"" Current IFBH VIN=VCE=VFB=5.5V -0.1 - 0.1 μA ⑥ FB "L" Current IFBL VIN=VCE =5.5V, VFB=0V -0.1 - 0.1 μA ⑥ Inductance Value L Test Frequency=1MHz - 2.2 - μH - Inductor IDC ΔT=+40℃ - 850 - mA - Rated Current Unless otherwise stated, VIN=VCE=3.7V (*1) "H" = VIN ~ VIN -1.2V, "L" = +0.1V ~ -0.1V (*2) VFB(E) : Effective FB Voltage, (*3) VFB(T) : Setting FB Voltage(0.5V) (*4) ON resistance = (VIN – VLX pin measurement voltage) / 100mA 4/24