IOUT (mA)

0

30

60

90

120

150

180

210

240

270

300

0

20

40

60

80

100

120

140

160

180

D020

VOUT = 3.3 V

VOUT = 1.8 V

TLV743P

IN

EN

OUT

GND

COUT

CIN

Optiona l

ON

OFF

Product

Folder

Order

Now

Technical

Documents

Tools &

Software

Support &

Community

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

TLV743P

SBVS310C – JULY 2017 – REVISED JUNE 2019

TLV743P 300-mA, Low-Dropout Regulator

1

1 Features

1

•

Input Voltage Range: 1.4 V to 5.5 V

•

Stable Operation With 1-µF Ceramic Output

Capacitor

•

Foldback Overcurrent Protection

•

Packages:

–

SOT-23 (5)

–

X2SON (4)

•

Very Low Dropout: 125 mV at 300 mA (3.3 VOUT)

•

Accuracy: 1% (Typical), 1.4% (Maximum)

•

Low IQ: 34 µA

•

Available in Fixed-Output Voltages:

1 V to 3.3 V

•

High PSRR: 50 dB at 1 kHz

•

Active Output Discharge

2 Applications

•

Tablets

•

Smartphones

•

Notebook and Desktop Computers

•

Portable Industrial and Consumer Products

•

WLAN and Other PC Add-On Cards

•

Camera Modules

3 Description

The TLV743P low-dropout linear regulator (LDO) is

an ultra-small, low quiescent current LDO that

sources 300 mA with good line and load transient

performance. The device provides a typical accuracy

of 1%.

The TLV743P is designed to be stable with a small

output capacitor with a value of 1 µF. The TLV743P

device provides foldback current control during device

power up and enabling. This functionality is especially

important in battery-operated devices.

The TLV743P provides an active pulldown circuit to

quickly discharge output loads when the device is

disabled.

The TLV743P is available in standard DBV (SOT-23)

and DQN (X2SON) packages.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TLV743P

SOT-23 (5)

2.90 mm × 1.60 mm

X2SON (4)

1.00 mm × 1.00 mm

(1) For all available packages, see the package option addendum

at the end of the data sheet.

Typical Application Circuit

Dropout Voltage vs Output Current