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TPS62050DGS Datasheet(PDF) 3 Page - Texas Instruments |
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TPS62050DGS Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 21 page  www.ti.com TPS62050, TPS62051 TPS62052, TPS62054, TPS62056 SLVS432D – SEPTEMBER 2002 – REVISED OCTOBER 2003 ELECTRICAL CHARACTERISTICS V I =7.2 V, VO = 3.3 V, IO = 300 mA, EN = VI, TA =-40°C to 85°C unless otherwise noted PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VI Input voltage range 2.7 10 V IO = 0 mA, SYNC = GND, I(Q) Operating quiescent current 12 20 µA VI = 7.2 V EN = GND 1.5 5 I(SD) Shutdown current µA EN = GND, TA=25°C 1.5 3 Quiescent current with enhanced LBI EN = VI, LBI=GND, IQ(LBI) 5 µA comparator version. TPS62051 only ENABLE VIH EN high level input voltage 1.3 V VIL EN low level input voltage 0.3 V EN trip point hysteresis 100 mV Ilkg EN input leakage current EN = GND or VIN, VI=7.2 V 0.01 0.2 µA I(EN) EN input current 0.6 V ≤ V (EN)≤ 4 V 2 µA V(UVLO) Undervoltage lockout threshold 1.6 V POWER SWITCH VI ≥ 5.4 V; IO = 300 mA 400 650 rDS(on) P-channel MOSFET on-resistance m Ω VI = 2.7 V; IO = 300 mA 600 850 P-channel MOSFET leakage current VDS = 10 V 1 µA P-channel MOSFET current limit VI = 7.2V, VO = 3.3 V 1000 1200 1400 mA VI ≥ 5.4 V; IO = 300 mA 300 450 rDS(on) N-channel MOSFET on-resistance m Ω VI = 2.7 V; IO = 300 mA 450 550 N-channel MOSFET leakage current VDS = 6 V 1 µA POWER GOOD OUTPUT, LBI, LBO V(PG) Power good trip voltage Vml -2% V VO ramping positive 50 µs Power good delay time VO ramping negative 200 V(FB) = 0.8 x VO nominal, VOL PG, LBO output low voltage 0.3 V I(sink) = 1 mA V(FB) = VO nominal, PG, LBO output leakage current 0.01 0.25 µA V(LBI) = VI Minimum supply voltage for valid power 2.3 V good, LBO signal V(LBI) Low battery input trip voltage Input voltage falling 1.21 V Low battery input trip point accuracy 1.5% V(LBI,HYS) Low battery input hysteresis 15 mV Ilkg(LBI) LBI leakage current 0.01 0.1 µA OSCILLATOR fS Oscillator frequency 600 850 1000 kHz f(SYNC) Synchronization range 600 1200 kHz VIH SYNC high level input voltage 1.5 V VIL SYNC low level input voltage 0.3 V Ilkg SYNC input leakage current SYNC = GND or VIN 0.01 0.1 µA SYNC trip point hysteresis 100 mV Duty cycle of external clock signal 20% 90% OUTPUT Adjustable output voltage TPS62050, VO 0.7 6.0 V range TPS62051 TPS62050, V(FB) Feedback voltage 0.5 V TPS62051 TPS62050, FB leakage current 0.02 0.1 µA TPS62051 3 |
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