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SPX2730

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

Signal Processing Technologies 

SPX2730/31/32/33

3A High Current Low Dropout Voltage Regulator

Adjustable & Fixed Output,

Fast Response

(ADVANCED INFORMATION)

FEATURES

• Adjustable Output Down To 1.2V

• 1% output accuracy @ 3.3V, 5.0V

• Output Current of 3A

• Low Dropout Voltage 370mV(Typ.) @ 3A.

• Extremely Tight Load And Line Regulation

• Extremely Fast Transient Response

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

• Reverse-battery and “Load Dump” Protection

• Zero Current Shutdown Mode (5-Pin Versions)

• Error Flag Signal Output Out-of Regulation (5-Pin Versions)

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 SPX2730/31/32/33 is a 3A high accuracy, low dropout voltage regulator (370mV(Typ)@ 3A). The SPX2730/31/32/33 is

designed for low voltage application that requires 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 SPX2730/31/32/33 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%. Features such as enable pin, Error flag pin are

also included in the 5-pin package.

The SPX2730/31/32/33 are offered in 3 & 5 pin TO-220 & TO-263 packages compatible with other 3 terminal regulators.

TO-263-3 (T)

SPX2730

123

TO-263-5 (T)

SPX2731/32/33

12 345

PIN CONNECTIONS

TO-220-3 (U)

TO-220-5 (U)

SPX2731

1) ENABLE

2) INPUT

3) GND

4) OUTPUT

5) FLAG

SPX2732

1) ENABLE

2) INPUT

3) GND

4) OUTPUT

5) ADJUST

SPX2733

1) FLAG

2) INPUT

3) GND

4) OUTPUT

5) ADJUST

SPX2730

123

SPX2731/32/33

1 2 3 45

SPX2731

1) ENABLE

2) INPUT

3) GND

4) OUTPUT

5) FLAG

SPX2732

1) ENABLE

2) INPUT

3) GND

4) OUTPUT

5) ADJUST

SPX2733

1) FLAG

2) INPUT

3) GND

4) OUTPUT

5) ADJUST

Top View

Top View

Front View

Front View

Rev. 12/7/00

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