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RT8205LZQW Datasheet(PDF) 8 Page - Richtek Technology Corporation |
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RT8205LZQW Datasheet(HTML) 8 Page - Richtek Technology Corporation |
8 / 26 page RT8205L/M 8 DS8205L/M-05 June 2011 www.richtek.com To be continued Parameter Symbol Test Conditions Min Typ Max Unit Internal Regulator and Reference VREG5 Output Voltage VVREG5 VOUT1 = GND, IVREG5 < 100mA 4.8 5 5.2 V VOUT1 = GND, 6.5V < VIN < 25V, IVREG5 < 100mA 4.75 5 5.25 VOUT1 = GND, 5.5V < VIN < 25V, IVREG5 < 50mA 4.75 5 5.25 VREG3 Output Voltage VVREG3 VOUT2 = GND, IVREG3 < 100mA 3.2 3.33 3.46 V VOUT2 = GND, 6.5V < VIN < 25V, IVREG3 < 100mA 3.13 3.33 3.5 VOUT2 = GND, 5.5V < VIN < 25V, IVREG3 < 50mA 3.13 3.33 3.5 VREG5 Output Current IVREG5 VVREG5 = 4.5V, VOUT1 = GND 100 175 250 mA VREG3 Output Current IVREG3 VVREG3 = 3V, VOUT2 = GND 100 175 250 mA VREG5 Switchover Threshold to VOUT1 VSW5 VOUT1 Rising Edge 4.6 4.75 4.9 V VOUT1 Falling Edge 4.3 4.4 4.5 VREG3 Switchover Threshold to VOUT2 VSW3 VOUT2 Rising Edge 2.975 3.125 3.25 V VOUT2 Falling Edge 2.775 2.875 2.975 VREGx Switchover Equivalent Resistance RSWx VREGx to VOUTx, 10mA -- 1.5 3 Ω REF Output Voltage VREF No External Load 1.98 2 2.02 V REF Load Regulation 0 < ILOAD < 100μA -- 10 -- mV REF Sink Current REF in Regulation 5 -- -- μA UVLO VREG5 Under Voltage Lockout Threshold Rising Edge -- 4.20 4.35 V Falling Edge 3.7 3.9 4.1 VREG3 Under Voltage Lockout Threshold SMPSx off -- 2.5 -- V Power Good PGOOD Threshold PGOOD Detect, FBx Falling Edge 82 85 88 % Hysteresis, Rising Edge with SS Delay Time -- 6 -- PGOOD Propagation Delay Falling Edge, 50mV Overdrive -- 10 -- μs PGOOD Leakage Current High State, Forced to 5.5V -- -- 1 μA PGOOD Output Low Voltage ISINK = 4mA -- -- 0.3 V Fault Detection Over Voltage Protection Trip Threshold VFB_OVP OVP Detect, FBx Rising Edge 109 112 116 % Over Voltage Protection Propagation Delay FBx = 2.35V -- 5 -- μs Under Voltage Protection Trip Threshold VFB_UVP UVP Detect, FBx Falling Edge 49 52 56 % UVP Shutdown Blanking Time tSHDN_UVP From ENTRIPx Enable -- 5 -- ms |
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