REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

a

ADP3367*

© Analog Devices, Inc., 1995

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax: 617/326-8703

+5 V Fixed, Adjustable

Low-Dropout Linear Voltage Regulator

FEATURES

Low Dropout: 150 mV @ 200 mA

Low Power CMOS: 17

A Quiescent Current

Shutdown Mode: 0.2

A Quiescent Current

300 mA Output Current Guaranteed

Pin Compatible with MAX667

Stable with 10

F Load Capacitor

+2.5 V to +16.5 V Operating Range

Low Battery Detector

Fixed +5 V or Adjustable Output

High Accuracy:

2%

Dropout Detector Output

Low Thermal Resistance Package*

ESD > 6000 V

APPLICATIONS

Handheld Instruments

Cellular Telephones

Battery Operated Devices

Portable Equipment

Solar Powered Instruments

High Efficiency Linear Power Supplies

FUNCTIONAL BLOCK DIAGRAM

ADP3367

IN

SHDN

LBO

LBI

GND

50mV

SET

DD

OUT

1.255V

REF

A1

C1

C2

TYPICAL OPERATING CIRCUIT

IN

OUT

GND

SET

SHDN

ADP3367

+5V

OUTPUT

C1

10µF

+

+

+6V

INPUT

400

200

0

015

510

100

300

GUARANTEED 300mA

ADP3367

DISSIPATION LIMIT

STANDARD

SO PACKAGE

DISSIPATION LIMIT

Load Current vs. Input-Output Differential Voltage

ADI’s proprietary Thermal Coastline leadframe used in ADP3367AR

packaging, has 30% lower thermal resistance than the standard

leadframes. This improvement in heat flow rate results in lower

die temperature hence improves reliability.

GENERAL DESCRIPTION

The ADP3367 is a low-dropout precision voltage regulator that

can supply up to 300 mA output current. It can be used to give

a fixed +5 V output with no additional external components or

can be adjusted from +1.3 V to +16 V using two external

resistors. Fixed or adjustable operation can be selected via the

SET input. The low quiescent current (17

µA) in conjunction

with the standby or shutdown mode (0.2

µA) makes this device

especially suitable for battery powered systems. The dropout

voltage when supplying 100

µA is only 15 mV allowing opera-

tion with minimal headroom thereby prolonging the useful bat-

tery life. At higher output current levels the dropout remains

low increasing to just 150 mV when supplying 200 mA. A wide

input voltage range from 2.5 V to 16.5 V is allowable. Addi-

tional features include a dropout detector and a low supply/bat-

tery monitoring comparator. The dropout detector can be used

to signal loss of regulation while the low battery detector can be

used to monitor the input supply voltage.

The ADP3367 is a much improved pin-compatible replacement

for the MAX667. Improvements include lower supply current,

tighter voltage accuracy and superior line and load regulation.

Improved ESD protection (>6000 V) is achieved by advanced

voltage clamping structures. The ADP3367 is specified over the

industrial temperature range –40

°C to +85°C and is available in

narrow surface mount (SOIC) packages.

*Patent pending.