AS2830U-2.5 View Datasheet(PDF) - Alpha Industries

Part Name

Description

Manufacturer

AS2830U-2.5

3A Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response

Alpha Industries 

α

ALPHA

SEMICONDUCTOR

Excellence in Analog Power Products

AS2830

3A Low Dropout Voltage Regulator

Adjustable & Fixed Output,

Fast Response

FEATURES

• Adjustable Output Down To 1.2V

• Fixed Output Voltages 1.5, 2.5, 3.3, 5.0V

• Output Current Of 3A

• Low Dropout Voltage 1.1V Typ.

• Extremely Tight Load And Line Regulation

• Current & Thermal Limiting

• Standard 3-Terminal Low Cost TO-220, TO-263 & TO-252

• Similar To Industry Standard LT1085/LT1585

APPLICATIONS

• Powering VGA & Sound Card

• Power PC™Supplies

• SMPS Post-Regulator

• High Efficiency “Green” Computer Systems

• High Efficiency Linear Power Supplies

• Portable Instrumentation

• Constant Current Regulators

• Adjustable Power Supplies

• Battery charger

PRODUCT DESCRIPTION

The ALPHA Semiconductor AS2830 are low power 3A adjustable and fixed voltage regulators that are very easy to use. It requires

only 2 external resistors to set the output voltage for adjustable version. The AS2830 are designed for low voltage applications that

offers lower dropout voltage and faster transient response. This device is an excellent choice for use in powering low voltage

microprocessor that require a lower dropout, faster transient response to regulate from +2.5V to 3.8V supplies and as a post regulator

for switching supplies applications. The AS2830 features low dropout of a maximum 1.2 volts.

The AS2830 offers over current limit and full protection against reversed input polarity, reversed load insertion, and positive and

negative transient voltage. On-Chip trimming adjusts the reference voltage to 1%. The IQ of this device flows into the load, which

increases efficiency.

The AS2830 are offered in a 3-pin TO-220, TO-263 & TO-252 packages compatible with other 3 terminal regulators. For a 5A low

dropout regulator refer to the AS2850 data sheet.

ORDERING INFORMATION

TO-220

DD PLASTIC

TO-252

3-PIN

3-PIN

DPAK

AS2830YU-X

AS2830YT-X AS2830YR-X

X = Output Voltage (i.e. 1.5 for 1.5V, 2.5 for 2.5V etc.)

Y= Output Tolerance, Y= A for 1%

Blank for 2%

Consult factory for other fixed voltages.

PIN CONNECTIONS

TO-263-3 (T)

TO-220-3 (U)

TO-252 (R)

ALPHA

AS2830

1 23

ADJ/GND VOUT VIN

Top View

ALPHA

AS2830

123

ADJ/GND VOUT VIN

Front View

ALPHA

AS2830

1 23

ADJ/GND VOUT VIN

Front View

Alpha Semiconductor Inc. 1031 Serpentine Lane. Pleasanton, CA 94566 Tel: (9250 417-1391 Fax: (925) 417-1390

Rev.8/10/99

This Material Copyrighted By Its Respective Manufacturer

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