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TPS62321DRC Datasheet(PDF) 4 Page - Texas Instruments |
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TPS62321DRC Datasheet(HTML) 4 Page - Texas Instruments |
4 / 31 page www.ti.com TPS62300, TPS62301, TPS62302 TPS62303, TPS62305, TPS62311 TPS62313, TPS62320, TPS62321 SLVS528B – JULY 2004 – REVISED JUNE 2005 ELECTRICAL CHARACTERISTICS (continued) V I = 3.6 V, VO = 1.6 V, EN = VI, MODE/SYNC = GND, L = 1 µH, CO = 10 µF, TA = -40°C to 85°C, typical values are at T A = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OSCILLATOR fSW Oscillator frequency 2.65 3 3.35 MHz f(SYNC) Synchronization range 2.65 3.35 MHz Duty cycle of external clock signal 20% 80% OUTPUT Adjustable output TPS62300 VO 0.6 5.4 V voltage range TPS62320 Regulated feedback TPS62300 V(FB) 0.4 V voltage TPS62320 DC power train amplification A(PT) 1.496 1.5 1.504 (VO/V(ADJ)) Minimum on-time (P-channel ton(MIN) 35 ns MOSFET) Resistance into VOUT sense pin 700 1000 k Ω Resistance into ADJ pin V(FB) > 0.4 V 700 1000 1300 k Ω Feedback input bias TPS62300 I(FB) V(FB) = 0.4 V 1 nA current TPS62320 Adjustable output TPS62300 –2% +2% voltage(1) TPS62320 TPS6230x 2.7 V ≤ V I ≤ 6 V, 0 mA ≤ IO(DC) ≤ 500 mA TPS6231x PFM/PWM mode operation –2% +2% Fixed output voltage TPS6232x TPS62305 –2% +2.7% TA = 25 C –0.5% +1.3% VO Adjustable output TPS62300 voltage dc accuracy(1) TPS62320 –40 C ≤ T A ≤ 85 C –0.5% +1.3% TPS6230x TA = 25 C –0.5% +1.3% PWM mode operation, TPS6231x VI = 3.6 V, No Load –40 C ≤ T A ≤ 85 C –0.5% +1.3% TPS6232x Fixed output voltage dc accuracy TA = 25 C –0.3% +1.7% TPS62305 –40 C ≤ T A ≤ 85 C –0.5% +2% DC output voltage load regulation IO = 0 mA to 500 mA, MODE/SYNC = VI –0.001 –0.002 %/mA DC output voltage load regulation V(ADJ) externally forced to 1.067 V, –0.0003 –0.0006 %/mA (power train in direct drive mode) IO = 0 mA to 500 mA, MODE/SYNC = VI VI = VO + 0.5 V (min 2.7 V) to DC output voltage line regulation 0.11 0.2 %/V 6 V, IO = 100 mA, MODE/SYNC = VI V(ADJ) externally forced to 1.067 V, DC output voltage line regulation VI = VO + 0.5 V (min 2.7 V) to 6 V, IO = 100 mA, 0.035 0.1 %/V (power train in direct drive mode) MODE/SYNC = VI Integrator slew rate 100 150 200 µV/µs ∆V O Power-save mode ripple voltage IO = 1 mA, MODE/SYNC = GND 0.025 VO VP-P Start-up time IO = 200 mA, Time from active EN to VO 250 µs Leakage current into SW pin VI > VO, 0 V ≤ V(SW) ≤ VIN, EN = GND 0.1 1 Ilkg(SW) µA Reverse leakage current into SW pin VI = open, V(SW) = 6 V, EN = GND 0.1 1 (1) Output voltage specification for the adjustable version does not include tolerance of external voltage programming resistors. 4 |
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