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TPS62691 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS62691 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 28 page  TPS62690 TPS62691 TPS62697 www.ti.com SLVS965B – MARCH 2011 – REVISED JANUARY 2012 RECOMMENDED OPERATING CONDITIONS MIN NOM MAX UNIT VIN Input voltage range 2.3 4.8(1) V TPS62690, 0 500 mA TPS62697 IO Output current range TPS62691 0 600 mA L Inductance 0.5 1.8 µH CO Output capacitance 1 5 10 µF TA Ambient temperature –40 +85 °C TJ Operating junction temperature –40 +125 °C (1) Operation above 4.8V input voltage is not recommended over an extended period of time. ELECTRICAL CHARACTERISTICS Minimum and maximum values are at VIN = 2.3V to 5.5V, VOUT = 2.85V, 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 VIN = 3.6V, VOUT = 2.85V, EN = 1.8V, AUTO mode and TA = 25°C (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT TPS6269x IO = 0mA. Device not switching 19 50 μA Operating quiescent IQ current TPS6269x IO = 0mA, PWM mode 4.2 mA I(SD) Shutdown current TPS6269x EN = GND 0.2 5 μA Undervoltage lockout UVLO TPS6269x 2.05 2.1 V threshold ENABLE, MODE VIH High-level input voltage 1 V VIL Low-level input voltage TPS6269x 0.4 V Ilkg Input leakage current Input connected to GND or VIN 0.01 1.5 μA POWER SWITCH VIN = V(GS) = 3.6V. PWM mode 160 280(1) m Ω P-channel MOSFET on rDS(on) TPS6269x resistance VIN = V(GS) = 2.9V. PWM mode 190 350(1) m Ω P-channel leakage Ilkg TPS6269x V(DS) = 5.5V, -40°C ≤ TJ ≤ 85°C 1 μA current, PMOS VIN = V(GS) = 3.6V. PWM mode 110 m Ω N-channel MOSFET on rDS(on) TPS6269x resistance VIN = V(GS) = 2.9V. PWM mode 140 m Ω N-channel leakage Ilkg TPS6269x V(DS) = 5.5V, -40°C ≤ TJ ≤ 85°C 2 μA current, NMOS Discharge resistor for rDIS 100 150 Ω power-down sequence 2.3V ≤ VIN ≤ 4.8V. Open loop 900 1100 1250 mA TPS62690 TPS62697 P-MOS current limit VIN = 3.6V. Closed loop 830 mA TPS62691 2.3V ≤ VIN ≤ 4.8V. Open loop 1050 1250 1400 mA Input current limit under TPS6269x VO shorted to ground 15 mA short-circuit conditions Thermal shutdown 140 °C TPS6269x Thermal shutdown 10 °C hysteresis (1) Verified by characterization. Not tested in production. Copyright © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS62690 TPS62691 TPS62697 |
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