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TPS75115QPWPR Datasheet(PDF) 2 Page - Texas Instruments |
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TPS75115QPWPR Datasheet(HTML) 2 Page - Texas Instruments |
2 / 35 page TPS75101Q, TPS75115Q, TPS75118Q, TPS75125Q, TPS75133Q WITH POWER GOOD TPS75301Q, TPS75315Q, TPS75318Q, TPS75325Q, TPS75333Q WITH RESET FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS SLVS241B – MARCH 2000 – REVISED JUNE 2003 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description (continued) Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 160 mV at an output current of 1.5 A for the TPS75x33Q) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 75 µA over the full range of output current, 1 mA to 1.5 A). These two key specifications yield a significant improvement in operating life for battery-powered systems. The device is enabled when EN is connected to a low level voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C. For the TPS751xxQ, the power-good terminal (PG) is an active high, open drain output, which can be used to implement a power-on reset or a low-battery indicator. The RESET (SVS, POR, or power on reset) output of the TPS753xxQ initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS753xxQ monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. When the output reaches 95% of its regulated voltage, RESET goes to a high-impedance state after a 100-ms delay. RESET goes to a logic-low state when the regulated output voltage is pulled below 95% (i.e., over load condition) of its regulated voltage. The TPS751xxQ or TPS753xxQ is offered in 1.5-V, 1.8-V, 2.5-V and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5 V to 5 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS751xxQ and TPS753xxQ families are available in 20-pin TSSOP (PWP) packages. AVAILABLE OPTIONS TJ OUTPUT VOLTAGE TSSOP (PWP) TJ (TYP) PG RESET 3.3 V TPS75133QPWP TPS75333QPWP 2.5 V TPS75125QPWP TPS75325QPWP – 40 °C to 125°C 1.8 V TPS75118QPWP TPS75318QPWP 1.5 V TPS75115QPWP TPS75315QPWP Adjustable 1.5 V to 5 V TPS75101QPWP TPS75301QPWP NOTE: The TPS75x01 is programmable using an external resistor divider (see application information). The PWP package is available taped and reeled. Add an R suffix to the device type (e.g., TPS75201QPWPR) to indicate tape and reel. † See application information section for capacitor selection details. PG or RESET OUT OUT 4 3 5 IN IN EN GND 17 6 8 9 VI 0.22 µF PG or RESET Output VO 47 µF + CO† SENSE 7 Figure 1. Typical Application Configuration (For Fixed Output Options) |
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