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FEATURES

DESCRIPTION

TPS75815

LOAD TRANSIENT RESPONSE

t −Time −

µs

−40 −25 −10 5 20 35 50 65 80 85 110 125

0

20

40 60 80 100 120 140 160 180 200

250

200

150

100

50

0

150

100

50

0

−50

−100

−150

3

0

TPS75833

DROPOUT VOLTAGE

vs

JUNCTION TEMPERATURE

1

2

3

4

5

EN

IN

GND

OUTPUT

FB/NC

EN

IN

GND

OUTPUT

FB/NC

1

2

3

4

5

TO−220 (KC) PACKAGE

(TOP VIEW)

TO−263 (KTT) PACKAGE

(TOP VIEW)

di

dt

0.75 A

=

s

TPS75801

,, TPS758A01

TPS75815, TPS75818

TPS75825, TPS75833

SLVS330F – JUNE 2001 – REVISED APRIL 2007

FAST-TRANSIENT RESPONSE, 3A, LOW-DROPOUT VOLTAGE REGULATORS

Quiescent current is 125

µA at full load and drops to

less than 1

µA when the device is disabled. The

• 3A Low-Dropout Voltage Regulator

TPS758xx

is

designed

to

have

fast

transient

• Available in 1.5V, 1.8V, 2.5V, and 3.3V

response for large load current changes.

Fixed-Output and Adjustable Versions

Because the PMOS device behaves as a low-value

• Dropout Voltage Typically 150mV at 3A

resistor, the dropout voltage is very low (typically

(TPS75833)

150mV at an output current of 3A for the TPS75833)

• V

and is directly proportional to the output current.

Additionally, since the PMOS pass element is a

(TPS758A01)

voltage-driven device, the quiescent current is very

• Low 125µA Typical Quiescent Current

low and independent of output loading (typically

• Fast Transient Response

125

µA over the full range of output current). These

• 3% Tolerance Over Specified Conditions for

two

key

specifications

yield

a

significant

improvement in operating life for battery-powered

Fixed-Output Versions

systems.

• Available in 5-Pin TO-220 and TO-263

Surface-Mount Packages

The

device

is

enabled

when

EN

(enable)

is

connected to a high voltage level (> 2V). Applying a

• Thermal Shutdown Protection

low voltage level (< 0.7V) to EN shuts down the

regulator, reducing the quiescent current to less than

1

µA at T

The TPS758xx family of 3A low dropout (LDO)

The TPS758xx is offered in 1.5V, 1.8V, 2.5V, and

regulators

contains

four

fixed

voltage

option

3.3V fixed-voltage versions and in an adjustable

regulators

and

an

adjustable

voltage

option

version (programmable over the range of 1.22V to

regulator. These devices are capable of supplying 3A

5V). Output voltage tolerance is specified as a

of

output

current

with

a

dropout

of

150mV

maximum of 3% over line, load, and temperature

(TPS75833). Therefore, the device is capable of

ranges. The TPS758xx family is available in a 5-pin

performing a 3.3V to 2.5V conversion.

TO-220 (KC) and TO-263 (KTT) packages.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerPAD is a trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2001–2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.