ADP3339AKC15RL7 Analog Devices, ADP3339AKC15RL7 Datasheet

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ADP3339AKC15RL7

Manufacturer Part Number
ADP3339AKC15RL7
Description
High-Accuracy Ultralow Iq, 1.5 A, anyCAP Low Dropout Regulator
Manufacturer
Analog Devices
Datasheet
FEATURES
High accuracy over line and load: ±0.9% @ 25°C,
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.
Rev. A
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 that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
±1.5% over temperature
O
= 1.0 µF for stability
High Accuracy, Ultralow I
anyCAP
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
IN
V
IN
PROTECTION
1 µ F
THERMAL
FUNCTIONAL BLOCK DIAGRAM
®
Low Dropout Regulator
Figure 2. Typical Application Circuit
© 2004 Analog Devices, Inc. All rights reserved.
IN
DRIVER
GND
ADP3339
Q1
Figure 1.
GND
CC
OUT
g
m
ADP3339
BANDGAP
ADP3339
www.analog.com
REF
Q
1 µ F
, 1.5 A,
V
OUT
R1
R2
OUT

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ADP3339AKC15RL7 Summary of contents

Page 1

... Rev. A 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 that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices ...

Page 2

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 ...

Page 3

SPECIFICATIONS µF, T =–40°C to +125°C, unless otherwise noted OUT J Table 1. Parameter Symbol Conditions OUTPUT 3 Voltage Accuracy OUT IN V ...

Page 4

ADP3339 ABSOLUTE MAXIMUM RATINGS Unless otherwise specified, all voltages are referenced to GND. Table 2. Parameter Input Supply Voltage Power Dissipation Operating Ambient Temperature Range Operating Junction Temperature Range θ Four-Layer Board JA θ JC Storage Temperature Range Lead Temperature ...

Page 5

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic Function 1 GND Ground Pin. 2 OUT Output of the Regulator. Bypass to Ground with a 1 µF or larger capacitor Regulator Input. Bypass to ...

Page 6

ADP3339 TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. 3.301 I LOAD 3.300 V = 3.3V OUT 3.299 3.298 I LOAD 3.297 3.296 I LOAD 3.295 I LOAD 3.294 3.293 3 4 INPUT VOLTAGE (V) Figure 4. Output Voltage ...

Page 7

V = 3.3V OUT 200 150 100 0.2 0.4 0.6 0.8 1.0 LOAD CURRENT (mA) Figure 10. Dropout Voltage vs. Load Current V = 3.3V OUT I = 1.5A LOAD ...

Page 8

ADP3339 3 200 400 600 TIME ( µ s) Figure 16. Short-Circuit Current 3.3V OUT –10 –20 – 1µ 1.5A LOAD –40 ...

Page 9

THEORY OF OPERATION The ADP3339 anyCAP LDO uses a single control loop for regulation and reference functions. The output voltage is sensed by a resistive voltage divider, consisting of R1 and R2, which is varied to provide the available output ...

Page 10

ADP3339 APPLICATION INFORMATION CAPACITOR SELECTION Output Capacitor The stability and transient response of the LDO is a function of the output capacitor. The ADP3339 is stable with a wide range of capacitor values, types, and ESR (anyCAP). A capacitor as ...

Page 11

Use the following general guidelines when designing printed circuit boards: 1. Keep the output capacitor as close to the output and ground pins as possible. 2. Keep the input capacitor as close to the input and ground pins as possible. ...

Page 12

... ADP3339AKC-3.3-RL –40°C to +85°C ADP3339AKC-3.3-RL7 –40°C to +85°C ADP3339AKC-5-RL –40°C to +85°C ADP3339AKC-5-RL7 –40°C to +85°C © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 3.15 3.00 2.90 7.00 BSC ...

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