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TPS77901DGK Datasheet(PDF) 6 Page - Texas Instruments |
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TPS77901DGK Datasheet(HTML) 6 Page - Texas Instruments |
6 / 22 page TPS77901, TPS77918, TPS77925, TPS77930 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions MIN MAX UNIT Input voltage, VI† 2.7 10 V Output voltage range, VO 1.5 5.5 V Output current, IO (see Note 1) 0 250 mA Operating virtual junction temperature, TJ (see Note 1) – 40 125 °C † To calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load). NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the device operate under conditions beyond those specified in this table for extended periods of time. electrical characteristics over recommended operating junction temperature range (TJ = –40°C to 125 °C), VI = VO(typ) + 1 V, IO = 1 mA, EN = 5 V, CO = 10 µF (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Adjustable voltage 1.5 V ≤ VO ≤ 5.5 V, TJ = 25°C VO Adjustable voltage 1.5 V ≤ VO ≤ 5.5 V 0.98VO 1.02VO 1 8 V Output TJ = 25°C, 2.8 V < VI < 10 V 1.8 VO Output voltage 1.8 V Output 2.8 V < VI < 10 V 1.764 1.836 V VO g (see Notes 2 and 4) 2 5 V Output TJ = 25°C, 3.5 V < VI < 10 V 2.5 V 2.5 V Output 3.5 V < VI < 10 V 2.45 2.55 3 0 V Output TJ = 25°C, 4.0 V < VI < 10 V 3.0 3.0 V Output 4.0 V < VI < 10 V 2.94 3.06 Quiescent current (GND current) (see Notes 2 and 4) TJ = 25°C 92 µA Quiescent current (GND current) (see Notes 2 and 4) 125 µA Output voltage line regulation ( ∆VO/VO) (see Note 3) VO + 1 V < VI ≤ 10 V, TJ = 25°C 0.005 %/V Output voltage line regulation ( ∆VO/VO) (see Note 3) VO + 1 V < VI ≤ 10 V 0.05 %/V Load regulation TJ = 25°C 1 mV Vn Output noise voltage TPS77918 BW = 300 Hz to 100 kHz, TJ = 25°C, 55 µVrms Io Output current limit VO = 0 V 0.9 1.3 A Peak output current 2 ms pulse width, 50% duty cycle 400 mA Thermal shutdown junction temperature 144 °C Standby current EN = VI, TJ = 25°C 1 µA Standby current EN = VI 3 µA FB input current Adjustable voltage FB = 1.5 V 1 µA VIH High level enable input voltage 2 V VIL Low level enable input voltage 0.7 V Enable input current –1 1 µA Power supply ripple rejection (TPS77318, TPS77418) f = 1 KHz, TJ = 25°C 55 dB NOTES: 2. Minimum input operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. Maximum input voltage = 10 V, minimum output current 1 mA. 3. If VO < 1.8 V then VImax = 10 V, VImin = 2.7 V: Line Regulation (mV) + % V V O V Imax * 2.7 V 100 1000 If VO > 2.5 V then VImax = 10 V, VImin = Vo + 1 V: Line Regulation (mV) + % V V O V Imax * V O ) 1 100 1000 4. IO = 1 mA to 250 mA |
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