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TPS62352 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS62352 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 46 page TPS62350, TPS62351 TPS62352, TPS62353 TPS62354, TPS62355, TPS62356 SLVS540E – MAY 2006 – REVISED APRIL 2008 .............................................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS (continued) over operating free-air temperature range, typical values are at TA = 25°C. Unless otherwise noted, specifications apply with VI = 3.6 V, EN = VI, VSEL = VI, SYNC = GND, VSEL0[6] bit = 1. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TPS62350/1/2/3/4/5 900 1100 1300 mA N-MOS current limit 2.7 V ≤ VI ≤ 5.5 V (sourcing) TPS62356 1200 1400 1700 mA TPS62350/1/2/3/4/5 -500 -700 -900 mA N-MOS current limit 2.7 V ≤ VI ≤ 5.5 V (sinking) TPS62356 -500 -700 -900 mA TPS62350/1/2/3/4/5 675 mA Input current limit under VO = 0 V short-circuit conditions TPS62356 775 mA Thermal shutdown 150 °C Thermal shutdown hysteresis 20 °C OSCILLATOR fSW Oscillator frequency CONTROL2[4:3] = 00 2.65 3 3.35 MHz f(SYNC) Synchronization range 2.65 3.35 MHz Duty cycle of external clock signal 20% 80% OUTPUT TPS62350 0.75 1.5375 V TPS62351 0.90 1.6875 V TPS62352 0.75 1.4375 V VO Output voltage range TPS62353 0.75 1.5375 V TPS62354 0.75 1.5375 V TPS62355 0.75 1.5375 V TPS62356 1.50 1.975 V ton(MIN) Minimum on-time (P-channel MOSFET) 35 ns Resistance into FB sense pin 700 1000 k Ω VI = 3.6 V, VO = 1.35 V, IO(DC) = 0 mA –1.5% 1.5% PWM operation 2.7 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA VO = 0.75 V, 1.05 V, 1.35 V, 1.5375 V –2% 2% PWM operation Output voltage VO TPS62350 2.7 V ≤ VI ≤ 5.5 V, IO(DC) = 0 mA DC accuracy –1% 4.5% VO = 1.05 V, L = 1 µH, Light PFM 2.7 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA –2% 3% VO = 1.35 V, L = 1 µH, Fast PFM/PWM 2.7 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA –2% 4.5% VO = 1.05 V, L = 1 µH, Light or Fast PFM/PWM VI = 3.6 V, VO = 1.50 V, IO(DC) = 0 mA –1.5% 1.5% PWM operation 2.7 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA VO = 0.90 V, 1.10 V, 1.50 V, 1.6875 V –2% 2% PWM operation Output voltage VO TPS62351 2.7 V ≤ VI ≤ 5.5 V, IO(DC) = 0 mA DC accuracy –1% 4.5% VO = 1.10 V, L = 1 µH, Light PFM 2.7 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA –2% 4.5% VO = 1.10 V, L = 1 µH, Light or Fast PFM/PWM 2.7 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA –2% 4.0% VO = 1.50 V, L = 1 µH, Light or Fast PFM/PWM VI = 3.6 V, VO = 1.20 V, IO(DC) = 0 mA –1.5% 1.5% PWM operation 2.7 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA VO = 0.75 V, 1.05 V, 1.20 V, 1.4375 V –2% 2% PWM operation Output voltage VO TPS62352 2.7 V ≤ VI ≤ 5.5 V, IO(DC) = 0 mA DC accuracy –1% 4.5% VO = 1.05 V, L = 1 µH, Light PFM 2.7 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA –2% 3% VO = 1.20 V, L = 1 µH, Fast PFM/PWM 2.7 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO(DC) ≤ 800 mA –2% 4.5% VO = 1.05 V, L = 1 µH, Light or Fast PFM/PWM 4 Submit Documentation Feedback Copyright © 2006–2008, Texas Instruments Incorporated Product Folder Link(s): TPS62350, TPS62351 TPS62352, TPS62353 TPS62354, TPS62355, TPS62356 |
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