LP38693

IN

OUT

SNS

**

GND

1 µF

*

1 µF

*

EN

LP38691

IN

OUT

SNS

**

GND

1 µF

*

1 µF

*

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Reference

Design

LP38691, LP38693, LP38691-Q1, LP38693-Q1

SNVS321O – JANUARY 2005 – REVISED DECEMBER 2015

LP3869x/-Q1 500-mA Low-Dropout CMOS Linear Regulators

Stable With Ceramic Output Capacitors

1 Features

3 Description

The LP3869x low-dropout CMOS linear regulators

1

•

Wide Input Voltage Range (2.7 V to 10 V)

provide tight output tolerance (2% typical), extremely

•

All WSON Options are Available as AEC-Q100

low dropout voltage (250 mV at 500-mA load current,

Grade 1

•

2% Output Accuracy (25°C)

ultralow equivalent series resistance (ESR) ceramic

output capacitors.

•

Low Dropout Voltage: 250 mV at 500 mA (Typical,

5 V Out)

The low thermal resistance of the WSON, SOT-223,

and TO-252 packages allow use of the full operating

•

Precision (Trimmed) Bandgap Reference

current

even

in

high

ambient

temperature

•

Ensured Specifications for –40°C to 125°C

environments.

•

1-µA Off-State Quiescent Current

The use of a PMOS power transistor means that no

•

Thermal Overload Protection

DC base-drive current is required to bias it, thus

•

Foldback Current Limiting

allowing ground pin current to remain below 100 µA

•

Ground Pin Current: 55 µA (typical) at full load

regardless of load current, input voltage, or operating

temperature.

•

Enable Pin (LP38693)

Device Information(1)

2 Applications

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Hard Disk Drives

TO-252 (3)

6.58 mm × 6.10 mm

LP38691

•

Notebook Computers

WSON (6)

3.00 mm × 3.00 mm

•

Battery-Powered Devices

SOT-223 (5)

6.50 mm × 3.56 mm

LP38693

•

Portable Instrumentation

WSON (6)

3.00 mm × 3.00 mm

LP38691-Q1

WSON (6)

3.00 mm × 3.00 mm

LP38693-Q1

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

the end of the data sheet.

4 Typical Application Circuits

* Minimum value required for stability

* Minimum value required for stability

** WSON package devices only

** WSON package devices only

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.