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TPS70448PWP Datasheet(PDF) 10 Page - Texas Instruments |
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TPS70448PWP Datasheet(HTML) 10 Page - Texas Instruments |
10 / 32 page TPS70445, TPS70448, TPS70451, TPS70458, TPS70402 DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS SLVS307B – SEPTEMBER 2000 – REVISED APRIL 2003 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating junction temperature (TJ = –40°C to 125°C) VIN1orVIN2=VOUTX(nom)+1V,IO=1mA,EN=0,COUT1=22µF,COUT2=47µF(unlessotherwisenoted) (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN1/VIN2 terminal UVLO threshold 2.4 2.65 V UVLO hysteresis 110 mV PG1/PG2 terminal Minimum input voltage for valid PGx I(PGx) = 300 µA, V(PGx) ≤ 0.8 V 1.0 1.3 V Trip threshold voltage VO decreasing 92% 95% 98% VO Hysteresis voltage Measured at VO 0.5% VO tr(PGx) Rising edge deglitch 30 µs Output low voltage VI = 2.7 V, I(PGx) = 1 mA 0.15 0.4 V Leakage current V(PGx) = 6 V 1 µA EN1/EN2 terminal High-level ENx input voltage 2 V Low-level ENx input voltage 0.7 V Input current (ENx) –1 1 µA MR terminal High-level input voltage 2 V Low-level input voltage 0.7 V Pullup current source 6 µA VOUT1 terminal Dropout voltage (see Note 4) IO = 1 A, VIN1 = 3.2 V, TJ = 25°C 160 mV Dropout voltage (see Note 4) IO = 1 A, VIN1 = 3.2 V 250 mV Peak output current 2 ms pulse width 1.2 A Discharge transistor current VOUT1 = 1.5 V 7.5 mA VOUT2 terminal Peak output current 2 ms pulse width 3 A Discharge transistor current VOUT2 = 1.5 V 7.5 mA FB terminal Input current – TPS70402 FB = 1.8 V 1 µA NOTE 4: Input voltage(VIN1 or VIN2) = VO(Typ) – 100 mV. For the 1.5-V, 1.8-V and 2.5-V regulators, the dropout voltage is limited by input voltage range. The 3.3 V regulator input voltage is set to 3.2 V to perform this test. |
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