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TPS78330DDCR Datasheet(PDF) 9 Page - Texas Instruments |
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TPS78330DDCR Datasheet(HTML) 9 Page - Texas Instruments |
9 / 24 page Thermal Shutdown Current Limit Bandgap IN OUT EPROM Logic GND EN Mux TPS783 www.ti.com SBVS133A – FEBRUARY 2010 – REVISED NOVEMBER 2014 7 Detailed Description 7.1 Overview The TPS783 family of low-dropout regulators (LDOs) designed specifically for battery-powered applications where ultralow quiescent current is a critical parameter. The absence of pulldown circuitry at the output of the LDO provides the flexibility to use the regulator output capacitor as a temporary backup power supply for a short period of time (for example, during battery replacement). The TPS783 family is compatible with the TI MSP430 and other similar products. The enable pin (EN) is compatible with standard CMOS logic. This LDO family is stable with any output capacitor greater than 1.0 µF. 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Internal Current Limit The TPS783 is internally current-limited to protect the regulator during fault conditions. During current limit, the output sources a fixed amount of current that is largely independent of output voltage. For reliable operation, do not operate the device in a current-limit state for extended periods of time. The PMOS pass element in the TPS783 family has a built-in body diode that conducts current when the voltage at OUT exceeds the voltage at IN. This current is not limited, so if extended reverse voltage operation is anticipated, external limiting up to the maximum rated current for the device may be required. Copyright © 2010–2014, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: TPS783 |
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