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TPS77930DGKG4 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS77930DGKG4 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 22 page TPS77901, TPS77918, TPS77925, TPS77930 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 detailed description pin functions enable (EN) The EN terminal is an input which enables or shuts down the device. If EN is a logic low, the device will be in shutdown mode. When EN goes to logic high, then the device will be enabled. sense (SENSE) The SENSE terminal of the fixed-output options must be connected to the regulator output, and the connection should be as short as possible. Internally, SENSE connects to a high-impedance wide-bandwidth amplifier through a resistor-divider network and noise pickup feeds through to the regulator output. It is essential to route the SENSE connection in such a way to minimize/avoid noise pickup. Adding RC networks between the SENSE terminal and VO to filter noise is not recommended because it can cause the regulator to oscillate. feedback (FB) FB is an input terminal used for the adjustable-output options and must be connected to an external feedback resistor divider. The FB connection should be as short as possible. It is essential to route it in such a way to minimize/avoid noise pickup. Adding RC networks between FB terminal and VO to filter noise is not recommended because it can cause the regulator to oscillate. reset (RESET) The RESET terminal is an open drain, active low output that indicates the status of VO. When VO reaches 95% of the regulated voltage, RESET will go to a high-impedance state after a 220-ms delay. RESET will go to a low-impedance state when Vout is below 95% of the regulated voltage. The open-drain output of the RESET terminal requires a pullup resistor. absolute maximum ratings over operating junction temperature range (unless otherwise noted) Input voltage range‡, VI – 0.3 V to 13.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage range at EN –0.3 V to 16.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum RESET voltage 16.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peak output current Internally limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous total power dissipation See Dissipation Rating Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output voltage, VO (OUT, FB) 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating virtual junction temperature range, TJ – 40 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg – 65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ESD rating, HBM 2 kV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. ‡ All voltage values are with respect to network terminal ground. DISSIPATION RATING TABLE – FREE-AIR TEMPERATURES PACKAGE AIR FLOW (CFM) θJA ( °C/W) θJC ( °C/W) TA < 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING 0 266.2 3.84 376 mW 3.76 mW/ °C 207 mW 150 mW DGK 150 255.2 3.92 392 mW 3.92 mW/ °C 216 mW 157 mW 250 242.8 4.21 412 mW 4.12 mW/ °C 227 mW 165 mW |
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