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LTC3576EUFE-TRPBF Datasheet(PDF) 3 Page - Linear Technology |
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LTC3576EUFE-TRPBF Datasheet(HTML) 3 Page - Linear Technology |
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3 / 48 page  LTC3576/LTC3576-1 3 3576f ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VBUS = 5V, BAT = 3.8V, DVCC = 3.3V, RCLPROG = 3.01k, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS hCLPROG (Note 4) Ratio of Measured VBUS Current to CLPROG Program Current 1x Mode 5x Mode 10x Mode Low Power Suspend Mode High Power Suspend Mode 210 1160 2200 9.6 56 mA/mA mA/mA mA/mA mA/mA mA/mA IVOUT(POWERPATH) VOUT Current Available Before Discharging Battery 1x Mode, BAT = 3.3V 5x Mode, BAT = 3.3V 10x Mode, BAT = 3.3V Low Power Suspend Mode High Power Suspend Mode 0.26 1.6 121 667 1217 0.31 2 0.41 2.4 mA mA mA mA mA VCLPROG CLPROG Servo Voltage in Current Limit Switching Modes Suspend Modes 1.18 100 V mV VUVLO VBUS Undervoltage Lockout Rising Threshold Falling Threshold 3.95 4.30 4.00 4.35 V V VDUVLO VBUS to BAT Differential Undervoltage Lockout Rising Threshold Falling Threshold 200 50 mV mV VOUT VOUT Voltage 1x, 5x, 10x Modes, 0V < BAT < 4.2V, IVOUT = 0mA, Battery Charger Off USB Suspend Modes, IVOUT = 250μA 3.4 4.5 BAT + 0.3 4.6 4.7 4.7 V V fOSC Switching Frequency 1.8 2.25 2.7 MHz RPMOS_ POWERPATH PMOS On-Resistance 0.18 Ω RNMOS_ POWERPATH NMOS On-Resistance 0.30 Ω IPEAK_POWERPATH Peak Inductor Current Limit 1x Mode (Note 5) 5x Mode (Note 5) 10x Mode (Note 5) 1 2 3 A A A RSUSP Suspend LDO Output Resistance Closed Loop 10 Ω PowerPath Switching Regulator—Step-Up Mode (USB On-the-Go) VBUS Output Voltage 0mA ≤ IVBUS ≤ 500mA, VOUT > 3.2V 4.75 5.25 V VOUT Input Voltage 2.9 5.5 V IVBUS Output Current Limit VBUS Leakage Current in Shutdown On-the-Go Disabled, VBUS < UVLO l 550 –150 680 0 150 mA nA IPEAK Peak Inductor Current Limit (Note 5) 1.8 A IOTGQ VOUT Quiescent Current VOUT = 3.8V, IVBUS = 0mA (Note 6) 1.38 mA VCLPROG Output Current Limit Servo Voltage 1.15 V VOUT(UVLO) VOUT UVLO—VOUT Falling VOUT UVLO—VOUT Rising 2.5 2.6 2.8 2.9 V V tSCFAULT Short-Circuit Fault Delay VBUS < 4V and PMOS Switch Off 7.2 ms Bat-Track Switching Regulator Control VWALL Absolute WALL Input Threshold Rising Threshold Hysteresis 4.2 4.3 1.1 4.4 V V ΔVWALL Differential WALL Input Threshold WALL-BAT Falling Hysteresis 030 60 45 mV mV VOUT Regulation Target Under VC Control 3.55 BAT + 0.3 V IWALLQ WALL Quiescent Current 100 μA RACPR ACPR Pull-Down Strength 100 Ω VHACPR ACPR High Voltage VOUT V VLACPR ACPR Low Voltage 0V |
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