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TPS62730_1107 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS62730_1107 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 27 page TPS62730 www.ti.com SLVSAC3 – MAY 2011 ELECTRICAL CHARACTERISTICS VIN = 3.0V, VOUT = 2.1V, ON/BYP = VIN, TA = –40°C to 85°C typical values are at TA = 25°C (unless otherwise noted), CIN = 2.2 μF, L = 2.2μH, COUT = 2.2μF, see parameter measurement information PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VIN Input voltage range 1.9 3.9 V ON/BYP = high, IOUT = 0mA. VIN = 3V 25 40 device not switching IOUT = 0mA. device switching, VIN = 3.0V, IQ Operating quiescent current μA 34 VOUT = 2.1V ON/BYP = high, Bypass switch active, VIN = 23 VOUT = 2.1V ISD Shutdown current, Bypass Switch Activated ON/BYP = GND, leakage current into VIN (1) 30 550 nA ON/BYP = GND, leakage current into VIN, 110 TA = 60°C (1) ON/BYP VIH TH Threshold for detecting high ON/BYP 1.9 V ≤ VIN ≤ 3.9V , rising edge 0.8 1 V VIL TH Threshold for detecting low ON/BYP 1.9 V ≤ VIN ≤ 3.9V , falling edge 0.4 0.6 V IIN Input bias Current 0 50 nA POWER SWITCH High side MOSFET on-resistance 600 RDS(ON) VIN = 3.0V m Ω Low Side MOSFET on-resistance 350 Forward current limit MOSFET high-side 410 mA ILIMF VIN = 3.0V, open loop Forward current limit MOSFET low side 410 mA BYPASS SWITCH RDS(ON) Bypass Switch on-resistance VIN = 2.1V, IOUT = 20mA, TJmax = 85°C 2.9 3.8 Ω VIN = 3V 2.1 VIT BYP Automatic Bypass Switch Transition ON/BYP = TPS62730 (2.1V) ON / falling VIN 2.14 2.20 2.3 Threshold (Activation / Deactivation) high OFF/ rising VIN 2.19 2.25 2.35 TPS62731 (2.05V) ON / falling VIN 2.15 OFF / rising VIN 2.20 TPS62732 (1.9V) ON / falling VIN 2.05 V OFF / rising VIN 2.10 TPS62734 (2.1V) ON / falling VIN 2.23 OFF / rising VIN 2.28 TPS62735 (2.3V) ON / falling VIN 2.23 OFF / rising VIN 2.33 STAT Status Output (Open Drain) VTSTAT Threshold level for STAT OUTPUT in % from VOUT ON/BYP = high and regulator is ready, VIN 95 falling % ON/BYP = high and regulator is ready, VIN 98 rising VOL Output Low Voltage Current into STAT pin I = 500 μA, VIN = 2.3V 0.4 V VOH Output High Voltage Open drain output, external pullup resistor VIN ILKG Leakage into STAT pin ON/BYP = GND, VIN = VOUT = 3V 0 50 nA REGULATOR tONmin Minimum ON time VIN = 3.0V, VOUT = 2.1V, IOUT = 0 mA 180 ns tOFFmin Minimum OFF time VIN = 2.3V 50 ns tStart Regulator start up time from transition ON/BYP = high VIN = 3.0V, VOUT = 3.0V 50 μs to STAT = low (1) Shutdown current into VIN pin, includes internal leakage Copyright © 2011, Texas Instruments Incorporated 3 |
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