LP38692

SNS

**

GND

1 PF

*

1 PF

*

VIN

LP38690

SNS

**

GND

1 PF

*

1 PF

*

VIN

LP38690, LP38692

www.ti.com

SNVS322J – DECEMBER 2004 – REVISED APRIL 2013

LP38690

LP38692 1A Low Dropout CMOS Linear Regulators

Stable with Ceramic Output Capacitors

Check for Samples: LP38690, LP38692

1

FEATURES

DESCRIPTION

The LP38690/2 low dropout CMOS linear regulators

2

•

2.5% Output Accuracy (25°C)

provide

tight

output

tolerance

(2.5%

typical),

•

Low Dropout Voltage: 450mV @ 1A (typ, 5V

extremely low dropout voltage (450mV @ 1A load

out)

•

Wide Input Voltage Range (2.7V to 10V)

utilizing ultra low ESR ceramic output capacitors.

•

Precision (Trimmed) Bandgap Reference

The low thermal resistance of the WSON, SOT-223

and PFM packages allow the full operating current to

•

Ensured Specs for -40°C to +125°C

be

used

even

in

high

ambient

temperature

•

1µA Off-State Quiescent Current

environments.

•

Thermal Overload Protection

The use of a PMOS power transistor means that no

•

Foldback Current Limiting

DC base drive current is required to bias it allowing

•

PFM, SOT-223 and 6-Lead WSON Packages

ground

pin

current

to

remain

below

100

µA

regardless of load current, input voltage, or operating

•

Enable Pin (LP38692)

temperature.

APPLICATIONS

Dropout Voltage: 450 mV (typ) @ 1A (typ. 5V out).

•

Hard Disk Drives

Ground Pin Current: 55 µA (typ) at full load.

•

Notebook Computers

Precision Output Voltage: 2.5% (25°C) accuracy.

•

Battery Powered Devices

•

Portable Instrumentation

Typical Application Circuits

* Minimum value required for stability.

**WSON package devices only.

1

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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2004–2013, 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.