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TPS76325QDBVRQ1 Datasheet(PDF) 10 Page - Texas Instruments |
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TPS76325QDBVRQ1 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 24 page TPS76301-Q1 OUT IN FB GND EN VREF TPS76316/18/25/30/33/50-Q1 OUT IN GND EN VREF Current Limit/ Thermal Protection Current Limit/ Thermal Protection 10 TPS763-Q1, TPS76301-Q1, TPS76316-Q1, TPS76318-Q1 TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1 SGLS247B – SEPTEMBER 2011 – REVISED MARCH 2016 www.ti.com Product Folder Links: TPS763-Q1 TPS76301-Q1 TPS76316-Q1 TPS76318-Q1 TPS76325-Q1 TPS76330-Q1 TPS76333-Q1 TPS76350-Q1 Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated 8 Detailed Description 8.1 Overview The TPS763xx-Q1 low-dropout (LDO) regulators are new families of regulators which have been optimized for use in battery-operated equipment and feature low dropout voltages, low quiescent current (140 μA), and an enable input to reduce supply currents to less than 2 μA when the regulator is turned off. 8.2 Functional Block Diagram 8.3 Feature Description 8.3.1 Regulator Protection The TPS763xx-Q1 pass element has a built-in back diode that safely conducts reverse currents when the input voltage drops below the output voltage (for example, during power down). Current is conducted from the output to the input and is not internally limited. If extended reverse voltage is anticipated, external limiting might be appropriate. The TPS763xx-Q1 also features internal current limiting and thermal protection. During normal operation, the TPS763xx-Q1 limits output current to approximately 800 mA. When current limiting engages, the output voltage scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of the device exceeds 165°C, thermal-protection circuitry shuts it down. Once the device has cooled down to below 140°C, the regulator operation resumes. |
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