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TPS737

SBVS067Q – JANUARY 2006 – REVISED MAY 2015

TPS737xx 1-A Low-Dropout Regulator With Reverse Current Protection

1 Features

3 Description

The TPS737xx family of linear low-dropout (LDO)

1

•

Stable With 1-

μF or Larger Ceramic Output

voltage regulators uses an NMOS pass element in a

Capacitor

voltage-follower

configuration.

This

topology

is

•

Input Voltage Range: 2.2 V to 5.5 V

relatively insensitive to output capacitor value and

•

Ultralow Dropout Voltage: 130 mV Typical at 1 A

ESR, allowing a wide variety of load configurations.

Load transient response is excellent, even with a

•

Excellent Load Transient Response—Even With

small 1-

μF ceramic output capacitor. The NMOS

Only 1-

μF Output Capacitor

topology also allows very low dropout.

•

NMOS Topology Delivers Low Reverse Leakage

The TPS737xx family uses an advanced BiCMOS

Current

process to yield high precision while delivering very

•

1% Initial Accuracy

low dropout voltages and low ground pin current.

•

3% Overall Accuracy Over Line, Load, and

Current consumption, when not enabled, is less than

Temperature

20 nA and ideal for portable applications. These

devices are protected by thermal shutdown and

•

foldback current limit.

•

Thermal Shutdown and Current Limit for Fault

Protection

For applications that require higher output voltage

accuracy, consider TI's TPS7A37xx family of 1%

•

Available in Multiple Output Voltage Versions

overall accuracy, 1-A low-dropout voltage regulators.

–

Adjustable Output: 1.20 V to 5.5 V

–

Custom Outputs Available Using Factory

Device Information(1)

Package-Level Programming

PART NUMBER

PACKAGE

BODY SIZE (NOM)

VSON (8)

3.00 mm × 3.00 mm

2 Applications

TPS737xx

SOT-223 (6)

6.50 mm × 3.50 mm

•

Point-of-Load Regulation for DSPs, FPGAs,

WSON (6)

2.00 mm × 2.00 mm

ASICs, and Microprocessors

(1) For all available packages, see the orderable addendum at

•

Post-Regulation for Switching Supplies

the end of the data sheet.

•

Portable and Battery-Powered Equipment

space

Typical Application Circuit

1

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.