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TPS63802DLAT 数据表(PDF) 5 Page - Texas Instruments |
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TPS63802DLAT 数据表(HTML) 5 Page - Texas Instruments |
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5 / 28 page  5 TPS63802 www.ti.com SLVSEU9 – NOVEMBER 2018 Product Folder Links: TPS63802 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated 7.5 Electrical Characteristics VIN= 1.8 V to 5.5 V, VOUT = 1.8 V to 5 V , TJ= –40°C to +125°C, typical values are at TJ= 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VIN;LOAD Minimum input voltage for full load, once started IOUT = 2 A, VOUT = 3.3 V, TJ = 25°C 2.3 V IQ;VIN Quiescent current into VIN TJ = 25°C, EN = VIN = 3.6 V, VOUT = 3.3 V, not switching 11 μA ISD Shutdown current into VIN EN = low, -40°C ≤ TJ ≤ 85°C, VIN = 3.6 V, VOUT = 0 V 10 600 nA UVLO Undervoltage lockout threshold VIN falling, VOUT ≥ 1.8 V, once started 1.2 1.25 1.29 V Undervoltage lockout threshold VIN rising 1.6 1.7 1.79 V TSD Thermal shutdown Temperature rising 150 °C TSD;HYST Thermal shutdown hysteresis 20 °C SOFT-START, POWER GOOD Tramp Soft-start, Current limit ramp time TJ = 25°C, VIN = 3.6 V, VOUT = 3.3 V, IO = 3.5A, from 0A to 3.5A 0.28 ms Tdelay Delay from EN-edge until rising VOUT TJ = 25°C, VIN = 3.6 V 100 μs LOGIC SIGNALS EN, MODE VTHR;EN Threshold Voltage rising for EN-Pin 1.07 1.1 1.13 V VTHF;EN Threshold Voltage falling for EN-Pin 0.97 1 1.03 V VIH High-level input voltage 1.2 V VIL Low-level input voltage 0.4 V VPG;rising Power Good threshold voltage VOUT rising, referenced to VOUT nominal 95% VPG;falling VOUT falling, referenced to VOUT nominal 90% VPG;Low Power Good low-level output voltage ISINK = 1 mA 0.4 V tPG;delay Power Good delay time VFB falling 40 µS Ilkg Input leakage current 0.01 0.2 µA OUTPUT ISD Shutdown current into VOUT EN = low, -40°C ≤ TJ ≤ 85°C, VIN = 0.0 V, VOUT = 3.3 V 10 600 nA VFB Feedback Regulation Voltage 500 mV VFB Feedback Voltage accuracy PWM mode –1% 1% Overvoltage Protection Threshold VOUT rising 5.5 5.66 5.78 V VIN rising 5.5 5.66 5.78 V IPWM/PFM Peak Inductor Current to enter PFM- Mode VIN = 3.6 V; VOUT = 3.3 V 550 700 900 mA IFB Feedback Input Bias Current VFB = 500 mV 10 100 nA IPK Peak Current Limit, Boost Mode VIN ≥ 2.5V 3.5 4.8 5.8 A Peak Current Limit, Buck-Boost Mode 4.8 A Peak Current Limit, Buck Mode 3.5 A IPK;Reverse Peak Current Limit for Reverse Operation VIN = 3.6 V, VOUT = 3.3 V –0.75 –0.5 A Buck RDS;ON High-side FET on-resistance VIN = 3 V, VOUT = 3.3 V 47 mΩ Low-side FET on-resistance VIN = 3 V, VOUT = 3.3 V 30 mΩ Boost RDS;ON High-side FET on-resistance VIN = 3 V, VOUT = 3.3 V 43 mΩ Low-side FET on-resistance VIN = 3 V, VOUT = 3.3 V 18 mΩ |
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