+5 V Fixed, Adjustable
Low-Dropout Linear Voltage Regulator
a
ADP3367
FEATURES
FUNCTIO NAL BLO CK D IAGRAM
Low Dropout: 150 m V @ 200 m A
Low Dropout: 300 m V @ 300 m A
Low Pow er CMOS: 17 A Quiescent Current
Shutdow n Mode: 0.2 A Quiescent Current
300 m A Output Current Guaranteed
Pin Com patible w ith MAX667
Stable w ith 10 F Load Capacitor
+2.5 V to +16.5 V Operating Range
Low Battery Detector
OUT
DD
IN
ADP3367
SHDN
LBO
A1
SET
C1
Fixed +5 V or Adjustable Output
High Accuracy: ؎2%
C2
Dropout Detector Output
Low Therm al Resistance Package*
ESD > 6000 V
1.255V
REF
50mV
LBI
GND
APPLICATIONS
Handheld Instrum ents
Cellular Telephones
TYP ICAL O P ERATING CIRCUIT
Battery Operated Devices
Portable Equipm ent
Solar Pow ered Instrum ents
High Efficiency Linear Pow er Supplies
+6V
INPUT
+5V
OUTPUT
OUT
IN
+
+
C1
10µF
ADP3367
GENERAL D ESCRIP TIO N
SET GND SHDN
T he 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. T he 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. T he 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. T he dropout detector can be used
to signal loss of regulation while the low battery detector can be
used to monitor the input supply voltage.
400
T
= +50°C
A
300
GUARANTEED 300mA
200
100
0
ADP3367
DISSIPATION LIMIT
STANDARD
SO PACKAGE
DISSIPATION LIMIT
0
5
10
15
T he 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. T he ADP3367 is specified over the
industrial temperature range –40°C to +85°C and is available in
narrow surface mount (SOIC) packages.
V
–V – V
IN OUT
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. T his improvement in heat flow rate results in lower
die temperature hence improves reliability.
REV. 0
A
Inform ation furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assum ed by Analog Devices for its
use, nor for any infringem ents of patents or other rights of third parties
which m ay result from its use. No license is granted by im plication or
otherwise under any patent or patent rights of Analog Devices.
© Analog Devices, Inc., 1995
2014
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Tel: 617/ 329-4700
Fax: 617/ 326-8703