HomedatasheetLD1117DT33

LD1117DT33 Datasheet

Adjustable and fixed low drop positive voltage regulator
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Description

The LD1117DT33 is a low drop voltage regulator able to provide up to 800 mA of output current, available even in adjustable version (VREF= 1.25 V). Concerning fixed versions, are offered the following output voltages: 1.2 V, 1.8 V, 2.5 V, 2.85 V, 3.3 V and 5.0 V. The 2.85 V type is ideal for SCSI-2 lines active termination. The device is supplied in: SOT-223, DPAK, SO-8 and TO-220. The SOT-223 and DPAK surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor. In fact in this case, unlike than PNP one, the quiescent current flows mostly into the load. Only a very common 10 µF minimum capacitor is needed for stability. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1 % at 25 °C. The adjustable LD1117 is pin to pin compatible with the other standard. Adjustable voltage regulators maintaining the better performances in terms of drop and tolerance. LD1117DT33 Fwatures • Low dropout voltage (1 V typ.)• 2.85 V device performances are suitable for SCSI-2 active termination• Output current up to 800 mA• Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V• Adjustable version availability (VREF = 1.25 V)• Internal current and thermal limit• Available in ± 1 % (at 25 °C) and 2 % in full temperature range• Supply voltage rejection: 75 dB (typ.)
Features

Parameters

[{"Name":"Voltage - Output ","Value":"3.3V"},{"Name":"Voltage - Dropout (Typical) ","Value":"1.1V @ 800mA"},{"Name":"Current - Output ","Value":"950mA"},{"Name":"Operating Temperature ","Value":"0°C ~ 125°C"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

SILICON LABORATORIES
Warm Hint

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