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| TPS62625 |
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3 page 
ELECTRICAL CHARACTERISTICS www.ti.com ............................................................................................................................................................... SLVS848A – JULY 2009 – REVISED JULY 2009 Minimum and maximum values are at VI = 2.3V to 5.5V, VO = 1.82V, EN = 1.82 V, 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 = 1.82V, EN = 1.82 V, AUTO mode and TA = 25°C. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VI Input voltage range 2.3 5.5 V IO = 0mA. Device not switching 31 55 µA IQ Operating quiescent current IO = 0mA, PWM mode 7.6 mA I(SD) Shutdown current EN = GND 0.2 1 µA UVLO Undervoltage lockout threshold 2.05 2.1 V ENABLE, MODE VIH High-level input voltage 1.0 V VIL Low-level input voltage 0.4 V Ilkg Input leakage current Input connected to GND or VIN 0.01 1 µA POWER SWITCH TPS62620 VI = V(GS) = 3.6V. PWM mode 270 m Ω TPS62621 VI = V(GS) = 2.5V. PWM mode 350 m Ω TPS62622 P-channel MOSFET rDS(on) on resistance VI = V(GS) = 3.6V. PWM mode 480 m Ω TPS62623 TPS62624 VI = V(GS) = 2.5V. PWM mode 640 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 140 m Ω N-channel MOSFET rDS(on) TPS6262x on resistance VI = V(GS) = 2.5V. PWM mode 200 m Ω Ilkg N-channel leakage current, NMOS V(DS) = 5.5V, -40°C ≤ TJ ≤ 85°C 1 µA Discharge resistor for power-down rDIS 15 50 Ω sequence P-MOS current limit 2.3V ≤ VI ≤ 4.8V. Open loop 975 1100 1200 mA Input current under short-circuit VO shorted to ground 19 mA conditions Thermal shutdown 140 °C Thermal shutdown hysteresis 10 °C OSCILLATOR fSW Oscillator frequency TPS6262x IO = 0mA. PWM mode 5.4 6 6.6 MHz OUTPUT 2.3V ≤ VI ≤ 4.8V, 0mA ≤ IO ≤ 600mA 0.98×VNOM VNOM 1.03×VNOM V PFM/PWM operation Regulated DC 2.3V ≤ VI ≤ 5.5V, 0mA ≤ IO ≤ 600mA 0.98×VNOM VNOM 1.04×VNOM V output voltage PFM/PWM operation V(OUT) TPS6262x 2.3V ≤ VI ≤ 5.5V, 0 mA ≤ IO ≤ 600mA 0.98×VNOM VNOM 1.02×VNOM V PWM operation Line regulation VI = VO + 0.5V (min 2.3V) to 5.5V, IO = 200mA 0.13 %/V Load regulation IO = 0mA to 600mA -0.0003 %/mA Feedback input resistance 480 k Ω TPS62620 IO = 1mA 20 mVPP TPS62621 Power-save mode ΔVO ripple voltage TPS62623 IO = 1mA 24 mVPP TPS62624 Start-up time TPS62620 IO = 0mA, Time from active EN to VO 120 µs Copyright © 2009, Texas Instruments Incorporated 3 |
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