very low dropout voltage of V at a full load and lower as output current decreases. AS is available as an adjustable or fixed. V, 3V, V, and 5V. AS datasheet, AS circuit, AS data sheet: ALPHA – mA Low Dropout Regulator SCSI-II Active Terminator,alldatasheet, datasheet, Datasheet . AS Datasheet, AS PDF, AS Data sheet, AS manual, AS pdf, AS, datenblatt, Electronics AS, alldatasheet, free, datasheet.

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The actual thermal resistance can be determined with experimentation. The output capacitance could increase in size to above the minimum value.

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The thermal interaction from other components in the application can effect the thermal resistance of the AS Circuit Layout, Thermal Experiments. Refer To Applicable Symbol List. Lead Dimension Uncontrolled in L 3.

ALPHA Semiconductor products are not authorized for use as critical components in life support devices or systems, nuclear power, aircraft, or space equipment without express written approval from the president of ALPHA Semiconductor. These limits are subject to change upon the completion of the full characterization over the specified temperature and supply voltage ranges.


L is the Termal Length for Soldering.

(PDF) AS1117 Datasheet download

Tab Contour Optional Within Dim. ALPHA makes no representation that the circuit descriptions herein will not infringe upon existing patent rights.

The AS features the internal thermal limiting to protect the device during overload conditions. The information provided here is believed to be reliable and accurate, however ALPHA assumes no responsibility for its use. ALPHA makes no guarantee for any errors that appear in this document. The SOT recommended soldering method are as follows: Internally Limited Lead Temp. Limits in Boldface apply over the full operating temperature range.

Pleasanton, CA Tel: The value of ESR can vary from the type of capacitor used in the applications. Substrate Layout for SOT excessive thermal gradients on the package. Refer to table 1 for the results of the experiment.

AS Datasheet, PDF – Alldatasheet

The AS features very low quiescent current and very low dropout voltage of 1. This device is an excellent choice for use in battery-powered applications, as active terminators for the SCSI bus, and portable computers.


Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied. AS power dissipation is calculated as follows: AS is available as an adjustable or fixed 2.

Output temperature coefficient is defined as dataasheet worst case voltage change divided by the total temperature range Note 2: Dropout voltage is defined as the input to output differential at which the output voltage drops mV below its nominal value measured at 1V differential at very low values of programmed output voltage, the minimum input supply voltage of 2V 2.