Analog Devices ADP3339 a Datasheet
High Accuracy, Ultralow IQ, 1.5 A,
FEATURES
High accuracy over line and load: ±0.9% @ 25°C,
±1.5% over temperature
Ultralow dropout voltage: 230 mV (typ) @ 1.5 A
Requires only C
anyCAP = stable with any type of capacitor (including MLCC)
Current and thermal limiting
Low noise
2.8 V to 6 V supply range
–40°C to +85°C ambient temperature range
SOT-223 package
APPLICATIONS
Notebook, palmtop computers
SCSI terminators
Battery-powered systems
PCMCIA regulators
Bar code scanners
Camcorders, cameras
GENERAL DESCRIPTION
The ADP3339 is a member of the ADP33xx family of precision,
low dropout, anyCAP voltage regulators. The ADP3339 operates
with an input voltage range of 2.8 V to 6 V and delivers a load
current up to 1.5 A. The ADP3339 stands out from the
conventional LDOs with a novel architecture and an enhanced
process that enables it to offer performance advantages and
higher output current than its competition. Its patented design
requires only a 1.0 µF output capacitor for stability. This device
is insensitive to output capacitor equivalent series resistance
(ESR), and is stable with any good quality capacitor, including
ceramic (MLCC) types for space-restricted applications. The
ADP3339 achieves exceptional accuracy of ±0.9% at room
temperature and ±1.5% over temperature, line, and load
variations. The dropout voltage of the ADP3339 is only 230 mV
(typical) at 1.5 A. The device also includes a safety current limit
and thermal overload protection. The ADP3339 has ultralow
quiescent current: 130 µA (typical) in light load situations.
= 1.0 µF for stability
O
anyCAP
FUNCTIONAL BLOCK DIAGRAM
IN
THERMAL
PROTECTION
V
IN
1µF
®
Low Dropout Regulator
ADP3339
Q1
ADP3339
CC
OUT
g
m
BANDGAP
DRIVER
GND
Figure 1.
ADP3339
IN
GND
Figure 2. Typical Application Circuit
REF
1µF
R1
R2
V
OUT
OUT
02191-0-001
02191-0-002
Rev. A
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infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
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Tel: 781.329.4700
Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.
www.analog.com
ADP3339
TABLE OF CONTENTS
Specifications.................................................................................... 3
Absolute Maximum Ratings............................................................ 4
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ........................................................................ 9
Application Information................................................................ 10
REVISION HISTORY
6/04—Data Sheet Changed from Rev. 0 to Rev. A
Updated Format..............................................................Universal
Changes to Table 1........................................................................ 3
Changes to Thermal Overload Protection Section................ 10
Updated Outline Dimensions................................................... 12
Changes to Ordering Guide...................................................... 12
10/01–Revision 0: Initial Version
Capacitor Selection.................................................................... 10
Output Current Limit................................................................ 10
Thermal Overload Protection .................................................. 10
Calculating Power Dissipation ................................................. 10
Printed Circuit Board Layout Considerations........................ 10
Outline Dimensions....................................................................... 12
Ordering Guide .......................................................................... 12
Rev. A | Page 2 of 12
ADP3339
SPECIFICATIONS
VIN = 6.0 V, CIN = C
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
OUTPUT
Voltage Accuracy3 V
V
V
Line Regulation3 VIN = V
Load Regulation IL = 0.1 mA to 1.5 A, TJ= 25°C 0.004 mV/mA
Dropout Voltage V
I
I
I
I
Peak Load Current I
Output Noise V
GROUND CURRENT
In Regulation I
I
I
I
I
In Dropout I
1, 2
= 1 µF, TJ =–40°C to +125°C, unless otherwise noted.
OUT
OUT
DROP
LDPK
NOISE
GND
GND
VIN = V
= V
IN
= V
IN
V
= 98% of V
OUT
= 1.5 A 230 480 mV
L
= 1 A 180 380 mV
L
= 500 mA 150 300 mV
L
= 100 mA 100 mV
L
VIN = V
f = 10 Hz–100 kHz, CL = 10 µF, IL = 1.5 A 95 µV rms
IL = 1.5 A 13 40 mA
= 1 A 9 25 mA
L
= 500 mA 5 15 mA
L
= 100 mA 1 3 mA
L
= 0.1 mA 130 200 µA
L
VIN = V
+ 0.5 V to 6 V, IL = 0.1 mA to 1.5 A, TJ = 25°C –0.9 +0.9 %
OUTNOM
+ 0.5 V to 6 V, IL = 0.1 mA to 1.5 A, TJ = –40°C to +125°C –1.5 +1.5 %
OUTNOM
+ 0.5 V to 6 V, IL = 100 mA to 1.5 A, TJ = 150°C –1.9 +1.9 %
OUTNOM
+ 0.5 V to 6 V, TJ = 25°C 0.04 mV/V
OUTNOM
OUTNOM
+ 1 V 2.0 A
OUTNOM
– 100 mV, IL = 0.1 mA 100 300 µA
OUTNOM
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC) methods.
2
Application stable with no load.
3
VIN = 2.8 V for models with V
OUTNOM
≤ 2.3 V.
Rev. A | Page 3 of 12
ADP3339
ABSOLUTE MAXIMUM RATINGS
Unless otherwise specified, all voltages are referenced to GND.
Table 2.
Parameter Rating
Input Supply Voltage –0.3 V to +8.5 V
Power Dissipation Internally Limited
Operating Ambient Temperature Range –40°C to +85°C
Operating Junction Temperature Range –40°C to +150°C
θJA Four-Layer Board 62.3°C/W
θ
JC
Storage Temperature Range –65°C to +150°C
Lead Temperature Range (Soldering 10 sec) 300°C
Vapor Phase (60 sec) 215°C
Infrared (15 sec) 220°C
26.8°C/W
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those listed in the operational sections
of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability. Only one absolute maximum rating may be
applied at any one time.
Rev. A | Page 4 of 12
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