TPS732xx

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TPS732

SBVS037P – AUGUST 2003 – REVISED DECEMBER 2015

TPS732xx Capacitor-Free, NMOS, 250-mA Low-Dropout Regulator With Reverse Current

Protection

1 Features

3 Description

The TPS732 family of low-dropout (LDO) voltage

1

•

Stable with No Output Capacitor or Any Value or

regulators uses an NMOS pass element in a voltage-

Type of Capacitor

follower configuration. This topology is stable using

•

Input Voltage Range: 1.7 V to 5.5 V

output

capacitors

with

low

equivalent

series

•

Ultralow Dropout Voltage: 40 mV Typical at

resistance (ESR), and even allows operation without

a capacitor. The device also provides high reverse

250 mA

blockage (low reverse current) and ground pin current

•

Excellent Load Transient Response—With or

that is nearly constant over all values of output

Without Optional Output Capacitor

current.

•

NMOS Topology Provides Low Reverse Leakage

The TPS732 uses an advanced BiCMOS process to

Current

yield high precision while delivering very low dropout

•

Low Noise: 30

voltages

and

low

ground

pin

current.

Current

•

0.5% Initial Accuracy

consumption, when not enabled, is less than 1

μA

and ideal for portable applications. The extremely low

•

1% Overall Accuracy (Line, Load, and

output noise (30

Temperature)

powering VCOs. These devices are protected by

•

Less Than 1-

thermal shutdown and foldback current limit.

•

Thermal Shutdown and Specified Min and Max

Current Limit Protection

Device Information(1)

•

Available in Multiple Output Voltage Versions

PART NUMBER

PACKAGE

BODY SIZE (NOM)

SOT-23 (5)

2.90 mm × 1.60 mm

–

Fixed Outputs of 1.2 V to 5 V

TPS732xx

SOT-223 (6)

6.50 mm × 3.50 mm

–

Adjustable Outputs from 1.2 V to 5.5 V

SON (8)

3.00 mm × 3.00 mm

–

Custom Outputs Available

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

the end of the data sheet.

2 Applications

•

Portable and Battery-Powered Equipment

•

Post-Regulation for Switching Supplies

•

Noise-Sensitive Circuitry such as VCOs

•

Point-of-Load Regulation for DSPs, FPGAs,

ASICs, and Microprocessors

Typical Application Circuit for Fixed-Voltage Versions

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.