IC REG LDO PREC 1A 5V SOT223

ADP3338AKCZ-5-R7

Manufacturer Part NumberADP3338AKCZ-5-R7
DescriptionIC REG LDO PREC 1A 5V SOT223
ManufacturerAnalog Devices Inc
SeriesanyCAP®
ADP3338AKCZ-5-R7 datasheet
 


Specifications of ADP3338AKCZ-5-R7

Design ResourcesUSB Peripheral Isolator Circuit (CN0160)Regulator TopologyPositive Fixed
Voltage - Output5VVoltage - InputUp to 8V
Voltage - Dropout (typical)0.19V @ 1ANumber Of Regulators1
Current - Output1AOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / CaseSOT-223 (3 leads + Tab), SC-73, TO-261
Primary Input Voltage8VOutput Voltage Fixed5V
Dropout Voltage Vdo190mVNo. Of Pins3
Output Current1AOperating Temperature Range-40°C To +85°C
MslMSL 3 - 168 HoursVoltage Regulator Case StyleSOT-223
Rohs CompliantYesLead Free Status / RoHS StatusLead free / RoHS Compliant
Current - Limit (min)-Other namesADP3338AKCZ-5-R7TR
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FEATURES
High accuracy over line and load: ±0.8% @ 25°C,
±1.4% over temperature
Ultralow dropout voltage: 190 mV (typ) @ 1 A
Requires only C
= 1.0 µF for stability
O
anyCAP is stable with any type of capacitor (including MLCC)
Current and thermal limiting
Low noise
2.7 V to 8 V supply range
−40°C to +85°C ambient temperature range
SOT-223 package
APPLICATIONS
Notebook, palmtop computers
SCSI terminators
Battery-powered systems
Bar code scanners
Camcorders, cameras
Home entertainment systems
Networking systems
DSP/ASIC supplies
GENERAL DESCRIPTION
The ADP3338 is a member of the ADP33xx family of precision,
low dropout (LDO), anyCAP voltage regulators. The ADP3338
operates with an input voltage range of 2.7 V to 8 V and delivers
a load current up to 1 A. The ADP3338 stands out from
conventional LDOs with a novel architecture and an enhanced
process that offers performance advantages and higher output
current than its competition. Its patented design requires only a
1 µF output capacitor for stability. This device is insensitive to
output capacitor equivalent series resistance (ESR), and is stable
Rev. B
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.
High Accuracy, Ultralow I
anyCAP
Low Dropout Regulator
®
FUNCTIONAL BLOCK DIAGRAM
Q1
IN
THERMAL
PROTECTION
CC
DRIVER
GND
Figure 1.
ADP3338
V
IN
IN
1 µ F
GND
Figure 2. Typical Application Circuit
with any good quality capacitor, including ceramic (MLCC)
types for space-restricted applications. The ADP3338 achieves
exceptional accuracy of ±0.8% at room temperature and ±1.4%
over temperature, line, and load variations. The dropout voltage
of the ADP3338 is only 190 mV (typical) at 1 A. The device also
includes a safety current limit and thermal overload protection.
The ADP3338 has ultralow quiescent current: 110 µA (typical)
in light load situations.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
©2005 Analog Devices, Inc. All rights reserved.
, 1 A,
Q
ADP3338
OUT
ADP3338
R1
g
m
R2
BANDGAP
REF
V
OUT
OUT
1 µ F
www.analog.com

ADP3338AKCZ-5-R7 Summary of contents

  • Page 1

    FEATURES High accuracy over line and load: ±0.8% @ 25°C, ±1.4% over temperature Ultralow dropout voltage: 190 mV (typ Requires only C = 1.0 µF for stability O anyCAP is stable with any type of capacitor (including ...

  • Page 2

    ADP3338 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 6/05—Data Sheet Changed from Rev. A ...

  • Page 3

    SPECIFICATIONS µ −40°C to +125°C, unless otherwise noted OUT J Table Parameter Symbol Conditions OUTPUT Voltage Accuracy OUT ...

  • Page 4

    ADP3338 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 JA θ JC Storage Temperature Range Lead Temperature (Soldering 10 ...

  • Page 5

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

  • Page 6

    ADP3338 TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. A 2.515 V = 2.5V OUT 2.510 2.505 2.500 2.495 2.490 2.5 4.5 INPUT VOLTAGE (V) Figure 4. Line Regulation Output Voltage ...

  • Page 7

    V = 2.5V OUT 200 150 100 0.2 0.4 0.6 LOAD CURRENT (A) Figure 10. Dropout Voltage vs. Load Current V = 2.5V OUT LOAD ...

  • Page 8

    ADP3338 2.5 0 400mΩ SHORT 1.5 1.0 0.5 0 0.4 0.6 0.8 TIME (s) Figure 16. Short-Circuit Current 2.5V OUT –10 – µ F – –40 –50 –60 –70 ...

  • Page 9

    THEORY OF OPERATION The ADP3338 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

    ADP3338 APPLICATION INFORMATION CAPACITOR SELECTION Output Capacitor The stability and transient response of the LDO is a function of the output capacitor. The ADP3338 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: • Keep the output capacitor as close as possible to the output and ground pins. • Keep the input capacitor as close as possible to the input and ground pins. ...

  • Page 12

    ADP3338 OUTLINE DIMENSIONS 3.10 3.00 2.90 7.30 3.70 7.00 3.50 6.70 3. 0.84 0.76 0.66 2.30 BSC 1.05 0.85 1.70 1.30 6.50 BSC 1.60 1.10 1.50 0.10 4.60 BSC 10° MAX 0.02 SEATING PLANE COMPLIANT TO JEDEC ...

  • Page 13

    ... ADP3338AKCZ-3.3RL7 –40°C to +85°C ADP3338AKC-5-REEL –40°C to +85°C ADP3338AKC-5-REEL7 –40°C to +85°C 1 ADP3338AKCZ-5-REEL –40°C to +85°C 1 ADP3338AKCZ-5-R7 –40°C to +85° Pb-free part. Output Voltage (V) Package Option 1.5 KC-3 1.5 KC-3 1.5 KC-3 1 ...

  • Page 14

    ADP3338 NOTES Rev Page ...

  • Page 15

    NOTES Rev Page ADP3338 ...

  • Page 16

    ADP3338 NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C02050–0–6/05(B) Rev Page ...