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TS4270CZ550 Datasheet(PDF) 2 Page - Taiwan Semiconductor Company, Ltd |
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TS4270CZ550 Datasheet(HTML) 2 Page - Taiwan Semiconductor Company, Ltd |
2 / 9 page Preliminary TS4270 5V Ultra Low Dropout Fixed Voltage Regulator 2/9 Version: A07 Electrical Specifications (VIN=13.5V, -40oC≤ TJ ≤150oC, unless otherwise noted) Parameter Symbol Test Condition Min Typ Max Unit Output Voltage VOUT 5mA ≤IQ ≤550mA, 6V ≤VI ≤ 26V 4.90 5 5.10 V Output Voltage VOUT IQ ≤300mA: 26V ≤VI ≤ 36V 4.90 5 5.10 V Output Current Limit IQmax VO =0V 650 850 -- mA Current Consumption (Iq = II – IO) Iq IO =5mA, -- 1 1.5 mA Current Consumption (Iq = II – IO) Iq IO =550mA, -- 55 75 mA Current Consumption (Iq = II – IO) Iq IO =550mA, VI =5V -- 70 90 mA Dropout Voltage (Note 1) VDR IO =550mA -- 350 700 mV Load Regulation REGLOAD IO = 5~550mA, VI = 6V -- 25 50 mV Line Regulation REGLINE IO = 5mA, VI = 6~26V -- 12 25 mV Power Supply Ripple Rejection PSRR f=100Hz, Vr =0.5VSS -- 54 -- dB Reset Generator Parameter Symbol Test Condition Min Typ Max Unit Switching Threshold VRT 4.5 4.65 4.8 V Reset High Voltage VROH 4.5 – – V Reset Low Voltage (Note 2) VROL Rintern =30kΩ, 1V≤ VO ≤4.5V – 60 – mV Reset Low Voltage VROL IR =3mA, VO =4.4V – 200 400 mV Reset Pull-up R Internally Connected to Output 18 30 46 kΩ Lower Reset Timing Threshold VDRL VO < VRT 0.2 0.45 0.8 V Charge Current Id VD =1V 8 14 25 uA Upper Timing Threshold VDU 1.4 1.8 2.3 V Delay Time td CD =100nF – 13 – ms Reset Reaction Time tRR CD =100nF – – 3 us Over Voltage Protection Parameter Symbol Test Condition Min Typ Max Unit Turn-off Voltage VL, OV 42 44 46 V Note: 1. Drop voltage = VIN - VOUT (measured when the output voltage has dropped 100 mV from the nominal value obtained at 13.5 V input) 2. Reset peak is always lower than 1.0 V. Pin Definitions and Functions Pin Symbol Function 1 Input Block to ground directly on the IC with ceramic capacitor 2 Reset Output The open collector output is connected to the 5 V output via an integrated resistor of 30 kW 3 GND Internally connected to heatsink 4 Reset Delay Connect a capacitor to ground for delay time adjustment 5 Output 5V, block to ground with 22 mF capacitor ESR, < 3W |
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