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SPX1085

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

Signal Processing Technologies 

SPX1085

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 SPX1085 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 SPX1085 is designed for low voltage applications that offer 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 SPX1085 features low dropout of a maximum of 1.5 volts.

The SPX1085 offers full protection against over-current faults, 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 load which

increases efficiency.

The SPX1085 are offered in a 3-pin TO-220, TO-263 & TO-252 packages compatible with other 3 terminal regulators. For a 8A low

dropout regulator refer to the SPX1085 data sheet.

PIN CONNECTIONS

TO-263-3 (T)

TO-220-3 (U)

TO-252 (R)

SPX1085

1 23

ADJ/GND VOUT VIN

Top View

SPX1085

123

ADJ/GND VOUT VIN

Front View

SPX1085

1 23

ADJ/GND VOUT VIN

Front View

Rev. 10/30/00

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