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TPS54380 Datasheet(PDF) 9 Page - Texas Instruments |
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TPS54380 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 28 page Falling Edge Deglitch Enable Comparator 1.2 V VIN 2.95 V Hysteresis: 0.03 V 2.5 ms Falling and Rising Edge Deglitch 2.5 ms VIN UVLO Comparator Hysteresis: 0.16 V Internal/External Slow-start (Internal Slow-start Time = 3.35 ms Reference VREF = 0.891 V − + Error Amplifier Thermal Shutdown 150°C SHUTDOWN SS_DIS PWM Comparator OSC Leading Edge Blanking 100 ns R Q S Adaptive Dead-Time and Control Logic SHUTDOWN 30 mW VIN REG VBIAS VIN BOOT VIN PH CO PGND PWRGD Falling Edge Deglitch 35 ms VSENSE SHUTDOWN 0.90 Vref Hysteresis: 0.03 Vref Powergood Comparator AGND VBIAS ILIM Comparator 3 − 6 V VO SYNC RT COMP VSENSE SS/ENA TPS54610 30 mW LOUT TPS54310 www.ti.com SLVS412E – DECEMBER 2001 – REVISED DECEMBER 2014 8 Detailed Description 8.1 Overview As a member of the SWIFT family of dc/dc regulators, the TPS54310 low-input-voltage high- output-current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing. 8.2 Functional Block Diagram Copyright © 2001–2014, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: TPS54310 |
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