【TI系列】LP298533DBVR 稳压器IC 益辉科技_电子街
The above Arduino block diagram shows the important modules on an Arduino UNO board.. LP2985-33DBVR. Another source of 5V is the VCC pin of the USB which is connected to the drain of an FDN340P, a P-channel MOSFET, and the source is connected to the 5V net. The gate of the transistor is connected to the output of an LMV358 op-amp.
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LP2985-33DBVRG4. LP2985-33DBVR. Manufacturer: Texas Instruments. Texas Instruments. Description: LDO Voltage Regulators Sgl Output 150mA Fixed (3.3V) Lo Quies. LDO Voltage Regulators 150-mA Low-Noise 1.5% tolerance. Lifecycle:
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The LP2985-33DBVR is the 3V3 regulator. Both the 3V3 and 5V regulators are LDO (Low Dropout), which means that they can regulate voltage even if the input voltage is close to the output voltage. This is an improvement over older linear regulators, such as the 7805 .
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【TI系列】LP298533DBVR 稳压器IC 益辉科技_电子街
Details Specifications Brand: Texas Instruments Texas Instruments Dropout Voltage: 280 mV 280 mV 3 mV 3 mV Height: 1.15 mm 1.15 mm 850 uA 850 uA Input Voltage, Max: 16 V 16 V Input Voltage, Min: 2.2 V 2.2 V Length: 2.9 mm 2.9 mm Line Regulation: 0.014 %/V 0.014 %/V Maximum Operating Temperature: + 125 C + 125 C Minimum Operating Temperature:
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TI's LP2985A is a 150-mA 16-V low-dropout (LDO) voltage regulator with high-accuracy. Find parameters, ordering and quality information
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The 3.3V pin is regulated using an LP2985-33DBVR which has a current limit of 150mA (the specifications on the website say 50mA. This is wrong. I think it is a left-over from the old Uno boards with FTDI chips where the 3.3V was fed directly by the internal 3.3V regulator of the FTDI chip and thus limited to 50mA).
【TI系列】LP298533DBVR 稳压器IC 益辉科技_电子街
Download the LP2985-33DBVR datasheet from Texas Instruments. Texas Instruments - LP2985-33DBVR - Ldo Voltage Regulator, 3.3V, 150MA, 5-SOT-23
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1 I guess either the regulator has failed creating a short or the 5v rail is shorted to the 3v3 rail elsewhere. Removing the regulator and checking the 3v3 rail is no longer 5v should tell you. The only time I broke a 3v3 regulator, it failed open, so I don't know how likely it is for a LP2985 to fail short.
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LP2985 www.ti.com SLVS522O -JULY 2004-REVISED JANUARY 2015 6.5 Electrical Characteristics at specified virtual junction temperature range, VIN = VOUT(NOM) + 1 V, VON/ OFF = 2 V, CIN = 1 μF, IL = 1 mA, COUT = 4.7 μF (unless otherwise noted) LP2985A-xx LP2985-xx PARAMETER TEST CONDITIONS TJ UNIT MIN TYP MAX MIN TYP MAX IL = 1 mA 25°C -1.
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Home Power management Linear & low-dropout (LDO) regulators LP2985 150-mA, 16-V, low-dropout voltage regulator with enable Data sheet LP2985 150-mA, Low-Noise, Low-Dropout Regulator With Shutdown datasheet (Rev. R) PDF | HTML Product details Find other Linear & low-dropout (LDO) regulators Technical documentation
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Texas Instruments Customer #: Description: LDO Voltage Regulators 150-mA 1% Tolerance Low-Noise LDO Datasheet: LP2985A-33DBVR Datasheet ECAD Model: Download the free Library Loader to convert this file for your ECAD Tool. Learn more about ECAD Model. More Information Learn more about Texas Instruments LP2985A-33DBVR Compare Product
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Download. File Size: 781Kbytes. Page: 24 Pages. Description: 150-mA LOW-NOISE LOW-DROPOUT REGULATOR WITH SHUTDOWN. Manufacturer: Texas Instruments.
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In this tutorial you learn everything you have to know about the Arduino Uno: datasheet, detailed pinout, power supply and the power consumption.. LP2985-33DBVR: 3.3V: 16V: 150mA: The NCP1117ST50T3G is connected to the VIN pin and the DC power jack. Technically the maximum input voltage is 20V but because at 20V the voltage.
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Description: LDO Voltage Regulators 150-mA Low-Noise 1.5% tolerance Datasheet: LP2985-33DBVR Datasheet ECAD Model: Download the free Library Loader to convert this file for your ECAD Tool. Learn more about ECAD Model. Compare Product Add To Project | Add Notes In Stock: 65,620 Stock: 65,620 Can Ship Immediately On Order: 39,000 Factory Lead-Time: 6
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