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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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TPS62679 Fiches technique(PDF) 4 Page - Texas Instruments |
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TPS62679 Fiches technique(HTML) 4 Page - Texas Instruments |
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4 / 34 page  TPS62671, TPS62674, TPS62675, TPS62679 SLVS952B – APRIL 2010 – REVISED JANUARY 2011 www.ti.com ELECTRICAL CHARACTERISTICS (continued) Minimum and maximum values are at VI = 2.3V to 5.5V, VO = 1.8V, EN = 1.8V, AUTO mode and TA = –40°C to 85°C; Circuit of Parameter Measurement Information section (unless otherwise noted). Typical values are at VI = 3.6V, VO = 1.8V, EN = 1.8V, AUTO mode and TA = 25°C (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT POWER SWITCH VI = V(GS) = 3.6V. PWM mode 170 m Ω rDS(on) P-channel MOSFET on resistance VI = V(GS) = 2.5V. PWM mode 230 m Ω Ilkg P-channel leakage current, PMOS V(DS) = 5.5V, -40°C ≤ TJ ≤ 85°C 1 μA VI = V(GS) = 3.6V. PWM mode 120 m Ω rDS(on) N-channel MOSFET on resistance VI = V(GS) = 2.5V. PWM mode 180 m Ω Ilkg N-channel leakage current, NMOS V(DS) = 5.5V, -40°C ≤ TJ ≤ 85°C 2 μA Discharge resistor for power-down rDIS 70 150 Ω sequence P-MOS current limit 2.3V ≤ VI ≤ 4.8V. Open loop 900 1000 1150 mA Input current limit under short-circuit VO shorted to ground 12 mA conditions Thermal shutdown 140 °C Thermal shutdown hysteresis 10 °C OSCILLATOR TPS62671 Oscillator center TPS62672 IO = 0mA. PWM operation 5.4 6 6.6 MHz frequency TPS62675 fSW Oscillator center TPS62674 IO = 0mA. PWM operation 4.9 5.45 6.0 MHz frequency TPS62679 OUTPUT 2.3V ≤ VI ≤ 4.8V, 0mA ≤ IO ≤ 500 mA 0.98 ×VNOM VNOM 1.03 ×VNOM V PFM/PWM operation TPS62671 TPS62672 2.3V ≤ VI ≤ 5.5V, 0mA ≤ IO ≤ 500 mA 0.98 ×VNOM VNOM 1.04 ×VNOM V TPS62675 PFM/PWM operation Regulated DC TPS62679 output voltage 2.3V ≤ VI ≤ 5.5V, 0mA ≤ IO ≤ 500 mA 0.98 ×VNOM VNOM 1.02 ×VNOM V VOUT PWM operation 2.3V ≤ VI ≤ 5.5V, 0mA ≤ IO ≤ 500 mA TPS62674 0.98 ×VNOM VNOM 1.02 ×VNOM V PWM operation Line regulation VI = VO + 0.5V (min 2.3V) to 5.5V, IO = 200 mA 0.23 %/V Load regulation IO = 0mA to 500 mA. PWM operation –0.00045 %/mA Feedback input resistance 480 k Ω TPS62671 IO = 1mA, VO = 1.8 V 14 mVPP Power-save mode ΔVO TPS62675 ripple voltage IO = 1mA, VO = 1.2 V 16 mVPP TPS62679 TPS62671 IO = 0mA, Time from active EN to VO 130 μs TPS62674 IO = 0mA, Time from EXTCLK clock active to VO 125 μs Start-up time IO = 0mA, Time from EXTCLK clock active to VO TPS62679 L = 1 μH DCR = 240mΩ 0603 (TY CKP1608S1R0) 430 μs CO = 2.2μF 4V 0402 (TY AMK105BJ225MP) IO = 0mA, Time from EXTCLK clock inactive to VO down 1.2 ms CO = 4.7μF 6.3V 0402 (muRata GRM155R60J475M) TPS62674 Shutdown time IO = 0mA, Time from EXTCLK clock inactive to VO down TPS62679 L = 1 μH DCR = 240mΩ 0603 (TY CKP1608S1R0) 600 μs CO = 2.2μF 4V 0402 (TY AMK105BJ225MP) 4 Submit Documentation Feedback © 2010–2011, Texas Instruments Incorporated Product Folder Link(s): TPS62671 TPS62674 TPS62675 TPS62679 |
Numéro de pièce similaire - TPS62679 |
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Description similaire - TPS62679 |
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