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LTC3589 数据表(PDF) 6 Page - Linear Technology |
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LTC3589 数据表(HTML) 6 Page - Linear Technology |
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6 / 50 page  LTC3589/LTC3589-1/ LTC3589-2 6 3589fe SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS LDO Regulator 4 (LDO4) VIN_LDO34 VIN_LDO34 Input Range (LTC3589) VIN_LDO34 Input Range (LTC3589-1/LTC3589-2) l l 2.35 1.7 VIN VIN V V IVIN_LDO34 VIN_LDO34 Quiescent Current VIN_LDO34 Shutdown Current Regulator Enabled Regulator Disabled l l 14 0 24 1 μA μA IVIN Enabled VIN Quiescent Current l 50 85 μA VLDO4 (LTC3589) LDO 4 Output Voltage ILDO4 = 1mA, L2DTV2[6:5] = 00 L2DTV2[6:5] = 01 L2DTV2[6:5] = 10 L2DTV2[6:5] = 11 l l l l 2.716 2.425 1.746 3.201 2.8 2.5 1.8 3.3 2.884 2.575 1.854 3.399 V V V V VLDO4 (LTC3589-1) (LTC3589-2) LDO 4 Output Voltage ILDO4 = 1mA, L2DTV2[6:5] = 00 L2DTV2[6:5] = 01 L2DTV2[6:5] = 10 L2DTV2[6:5] = 11 l l l l 1.164 1.746 2.425 3.104 1.2 1.8 2.5 3.2 1.236 1.854 2.575 3.296 V V V V LD04 Line Regulation ILDO4 =1mA, VINLDO4 = 2.7V to 5.5V, VOUT = 1.8V 0.01 %/V LDO4 Load Regulation ILDO4 = 1mA to 250mA 0.05 % ILDO4 LDO4 Available Output Current l 250 mA ILDO4_SC LDO4 Short-Circuit Current Limit 300 450 600 mA VDROP4 LDO4 Dropout Voltage (Note 4) ILDO4 = 200mA, VLDO4 = 3.3V ILDO4 = 200mA, VLDO4 = 1.8V ILDO4 = 200mA, VLDO4 = 3.2V (LTC3589-1/ LTC3589-2) 120 190 120 160 250 160 mV mV mV Enable Inputs VENx_THR Threshold Rising, All Enables Low l 0.8 1.2 V VENx_THR2 VENx_THF2 Threshold Rising, Any Enable High Threshold Falling, Any Enable High l l 0.420 0.5 0.45 0.530 V V RENX Input Pull-Down Resistance 4.5 MΩ VSTB, PWR_ON Inputs VVSTB_THR VVSTB_THF VSTB Pin Threshold Rising VSTB Pin Threshold Falling l l 0.4 0.8 0.7 1.2 V V RVSTB Pull-Down Resistance 4.5 MΩ VPWR_ONTHR VPWR_ONTHF PWR_ON Pin Threshold Rising PWR_ON Pin Threshold Falling l l 0.4 0.8 0.7 1.2 V V RPWR_ON Pull-Down Resistance 4.5 MΩ I2C Port DVDD DVDD Input Supply Voltage l 1.6 5.5 V IDVDD DVDD Quiescent Current SCL/SDA = 0kHz 0.5 μA VDVDD_UVLO DVDD UVLO Level 0.8 V ADDRESS Device Address – Write Device Address – Read 01101000 01101001 VIH SDA, SCL VIL SDA, SCL SDA and SCL Input Threshold Rising SDA and SCL Input Threshold Falling 70 30 %DVDD %DVDD IIHSCx IILSCx SDA and SCL Input Current SDA = SCL = 0V to 5.5V –250 250 nA VOL SDA SDA Output Low Voltage ISDA = 3mA l 0.4 V fSCL SCL Clock Operating Frequency 400 kHz ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = PVIN1 = PVIN2 = PVIN3 = PVIN4 = VIN_LDO2 = VIN_LDO34 = DVDD = 3.8V. All regulators disabled unless otherwise noted. |
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