www.ti.com

FEATURES

DESCRIPTION

APPLICATIONS

TPS732xx

GND

EN

NR

IN

OUT

V

IN

V

OUT

Optional

Optional

Optional

Typical Application Circuit for Fixed-Voltage Versions

DCQ PACKAGE

SOT223

(TOP VIEW)

1

2

3

4

5

IN

OUT

GND

NR/FB

EN

TAB IS GND

DBV PACKAGE

SOT23

(TOP VIEW)

IN

GND

EN

NR/FB

OUT

1

2

3

4

5

TPS73201, TPS73215, TPS73216

TPS73218, TPS73225, TPS73230

TPS73233, TPS73250

SBVS037F – AUGUST 2003 – REVISED SEPTEMBER 2004

Cap-Free, NMOS, 250mA Low Dropout Regulator

with Reverse Current Protection

•

Stable with No Output Capacitor or Any Value

The TPS732xx family of low-dropout (LDO) voltage

or Type of Capacitor

regulators uses a new topology: an NMOS pass

element in a voltage-follower configuration. This top-

•

Input Voltage Range: 1.7V to 5.5V

ology is stable using output capacitors with low ESR,

•

Ultralow Dropout Voltage: 40mV Typ at 250mA

and even allows operation without a capacitor. It also

•

Excellent Load Transient Response—with or

provides high reverse blockage (low reverse current)

without Optional Output Capacitor

and ground pin current that is nearly constant over all

values of output current.

•

New NMOS Topology Provides Low Reverse

Leakage Current

The TPS732xx uses an advanced BiCMOS process

to yield high precision while delivering very low

•

dropout voltages and low ground pin current. Current

•

0.5% Initial Accuracy

consumption, when not enabled, is under 1µA and

•

1% Overall Accuracy (Line, Load, and

ideal for portable applications. The extremely low

Temperature)

powering VCOs. These devices are protected by

•

thermal shutdown and foldback current limit.

•

Thermal Shutdown and Specified Min/Max

Current Limit Protection

•

Available in Multiple Output Voltage Versions

– Fixed Outputs of 1.2V, 1.5V, 1.6V, 1.8V, 2.5V,

3.0V, 3.3V, and 5.0V

– Adjustable Outputs From 1.20V to 5.5V

– Custom Outputs Available

•

Portable/Battery-Powered Equipment

•

Post-Regulation for Switching Supplies

•

Noise-Sensitive Circuitry such as VCOs

•

Point of Load Regulation for DSPs, FPGAs,

ASICs, and Microprocessors

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.

PRODUCTION DATA information is current as of publication date.

Copyright © 2003–2004, 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.