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TPS64202DBVT Datasheet(PDF) 3 Page - Texas Instruments |
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TPS64202DBVT Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 29 page  TPS64200,TPS64201 TPS64202,TPS64203 SLVS485 − AUGUST 2003 www.ti.com 3 ELECTRICAL CHARACTERISTICS VIN = 3.8 V, VO = 3.3 V, EN = VIN, TA = −40°C to 85°C (unless otherwise noted) SUPPLY CURRENT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VI Input voltage range 1.8 6.5 V I(Q) Operating quiescent current IO = 0 mA 20 35 µA I(SD) Shutdown current EN = VI 0.1 1 µA OUTPUT/CURRENT LIMIT VO Adjustable output voltage range VFB VI V VFB Feedback voltage 1.213 V Feedback leakage current 0.01 0.2 µA Feedback voltage tolerance −2 +2 % V(ISENSE) Reference voltage for current limit 90 105 120 mV ISENSE leakage current 0.01 0.2 µA Line regulation Measured with circuit according to Figure 1 0.6 %/V Load regulation Measured with circuit according to Figure 1 VI = 3.8 V 0.6 %/A η Efficiency Measured with circuit according to Figure 1 VI = 3.8 V, VO = 3.3 V, IO = 1000 mA 94% η Efficiency Measured with circuit according to Figure 1 VI = 3.8 V, VO = 1.2 V, IO = 800 mA 80% Start-up time IO = 0 mA, Time from active EN to VO, CO = 47 µF 0.25 ms GATE DRIVER (SW-PIN) rDS(ON) P-channel MOSFET on-resistance VI ≥ 2.5 V 4 Ω rDS(ON) P-channel MOSFET on-resistance VI = 1.8 V 6 Ω rDS(ON) N-channel MOSFET on-resistance VI ≥ 2.5 V 4 Ω rDS(ON) N-channel MOSFET on-resistance VI = 1.8 V 6 Ω IO Maximum gate drive output current, SW 150 mA ENABLE VIH EN high level input voltage Device is off 1.3 V VIL EN low level input voltage Device is operating 0.3 V EN trip point hysteresis 115 mV Ilkg EN input leakage current EN = GND or VIN 0.01 0.2 µA V(UVLO) Undervoltage lockout threshold 1.7 V ON TIME and OFF TIME ton Minimum on time TPS64200, TPS64201, TPS64202 1.36 1.6 1.84 s ton Minimum on time TPS64203 only 0.56 0.65 0.74 µs Reduced on time 1 TPS64201,TPS64202 0.80 µs Reduced on time 2 TPS64201,TPS64202 0.40 µs Reduced on time 3 TPS64201,TPS64202 0.20 µs toff Minimum off time TPS64200,TPS64201, TPS64203 0.44 0.55 0.66 s toff Minimum off time TPS64202 only 0.24 0.3 0.36 µs |
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