DCQ PACKAGE

(TOP VIEW)

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TPS73801

www.ti.com

SLVS915A – FEBRUARY 2010 – REVISED JULY 2012

1.0-A LOW-NOISE FAST-TRANSIENT-RESPONSE LOW-DROPOUT REGULATOR

Check for Samples: TPS73801

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FEATURES

APPLICATIONS

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Optimized for Fast Transient Response

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3.3-V to 2.5-V Logic Power Supplies

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Output Current: 1.0 A

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Post Regulator for Switching Supplies

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Dropout Voltage: 300 mV

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Portable/Battery-Powered Equipment.

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1-mA Quiescent Current

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No Protection Diodes Needed

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Controlled Quiescent Current in Dropout

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Adjustable Output Voltage: 1.21 V to 20 V

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Less Than 1-µA Quiescent Current in

Shutdown

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Stable with 10-µF Output Capacitor

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Stable with Ceramic Capacitors

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Reverse-Battery Protection

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No Reverse Current

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Thermal Limiting

DESCRIPTION/ORDERING INFORMATION

The TPS73801 is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply

1.0 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less

than 1 µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other

regulators. In addition to fast transient response, the TPS73801 regulators have very low output noise, which

makes them ideal for sensitive RF supply applications.

Output voltage range is from 1.21 V to 20 V. The TPS73801 regulators are stable with output capacitors as low

as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other

regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and

reverse-current protection. The devices are available as an adjustable device with a 1.21-V reference voltage.

The TPS73801 regulators are available in the 6-pin TO-223 (DCQ) packages.

ORDERABLE PART NUMBER

TOP-SIDE MARKING

(TYP)

–40°C to 125°C

Adjustable

TO-223 – DCQ

Reel of 2500

TPS73801DCQR

PS73801

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2)

Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

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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 © 2010–2012, 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.