1

FEATURES

DESCRIPTION

APPLICATIONS

Typical Application Circuit

PGor

RESET

OUT

OUT

4

3

5

IN

IN

EN

GND

17

6

8

9

V

IN

0.22 F

m

PGor RESET Output

V

OUT

47 F

m

+

C

OUT

(1)

SENSE

7

TPS752xxQ

TPS754xxQ

SLVS242C – MARCH 2000 – REVISED OCTOBER 2007

www.ti.com

TPS752xxQ with RESET Output, TPS754xxQ with Power Good Output

FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS

23

• 2-A Low-Dropout Voltage Regulator

The

TPS752xxQ

and

TPS754xxQ

devices

are

low-dropout regulators with integrated power-on reset

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

and power-good (PG) functions respectively. These

Output and Adjustable Versions

devices are capable of supplying 2 A of output

• Open Drain Power-On Reset With 100ms Delay

current with a dropout of 210 mV (TPS75233Q,

(TPS752xxQ)

TPS75433Q). Quiescent current is 75

μA at full load

• Open Drain Power-Good (PG) Status Output

and drops down to 1

μA when the device is disabled.

(TPS754xxQ)

These devices are designed to have fast transient

response for larger load current changes.

• Dropout Voltage Typically 210 mV at 2 A

(TPS75233Q)

Because the PMOS device behaves as a low-value

resistor, the dropout voltage is very low (typically

• Ultralow 75-μA Typical Quiescent Current

210 mV at an output current of 2 A for the

• Fast Transient Response

TPS75x33Q) and is directly proportional to the output

• 2% Tolerance Over Specified Conditions for

current.

Additionally,

because

the

PMOS

pass

Fixed-Output Versions

element is a voltage-driven device, the quiescent

current is very low and independent of output loading

• 20-Pin TSSOP PowerPAD™ (PWP) Package

(typically 75

μA over the full range of output current,

• Thermal Shutdown Protection

1 mA to 2 A). These two key specifications yield a

significant

improvement

in

operating

life

for

battery-powered systems.

• Telecom

The device is enabled when EN is connected to a

• Servers

low-level input voltage. This LDO family also features

• DSP, FPGA Supplies

a sleep mode; applying a TTL high signal to EN

(enable) shuts down the regulator, reducing the

quiescent current to less than 1

blank

blank

(Fixed Voltage Options)

(1)

See Application Information for capacitor selection details.

1

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.

2

PowerPAD is a trademark of Texas Instruments.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2000–2007, 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.