IC REG LDO 3.3V 500MA 8-MSOP

ADP3335ARMZ-3.3RL7

Manufacturer Part NumberADP3335ARMZ-3.3RL7
DescriptionIC REG LDO 3.3V 500MA 8-MSOP
ManufacturerAnalog Devices Inc
SeriesanyCAP®
ADP3335ARMZ-3.3RL7 datasheet
 


Specifications of ADP3335ARMZ-3.3RL7

Package / Case8-MSOP, Micro8™, 8-uMAX, 8-uSOP,Mounting TypeSurface Mount
Current - Output500mAVoltage - Output3.3V
Voltage - InputUp to 12VOperating Temperature-40°C ~ 85°C
Regulator TopologyPositive FixedVoltage - Dropout (typical)0.2V @ 500mA
Number Of Regulators1Primary Input Voltage12V
Output Voltage Fixed3.3VDropout Voltage Vdo200mV
No. Of Pins8Output Current500mA
Operating Temperature Range-40°C To +85°CMslMSL 3 - 168 Hours
Lead Free Status / RoHS StatusLead free / RoHS CompliantCurrent - Limit (min)-
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FEATURES
High accuracy over line and load: ±0.9% @ 25°C,
±1.8% over temperature
Ultralow dropout voltage: 200 mV (typ) @ 500 mA
Requires only C
= 1.0 μF for stability
O
anyCAP = stable with any type of capacitor
(Including MLCC)
Current and thermal limiting
Low noise
Low shutdown current: < 10 nA (typ)
2.6 V to 12 V supply range
–40°C to +85°C ambient temperature range
APPLICATIONS
PCMCIA cards
Cellular phones
Camcorders, cameras
Networking systems, DSL/cable modems
Cable set-top box
MP3/CD players
DSP supplies
GENERAL DESCRIPTION
The ADP3335 is a member of the ADP333x family of precision,
low dropout, anyCAP voltage regulators. It operates with an
input voltage range of 2.6 V to 12 V, and delivers a continuous
load current up to 500 mA. The ADP3335 stands out from
conventional low dropout regulators (LDOs) by using an
enhanced process enabling it to offer performance advantages
beyond 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)
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
DRIVER
SD
GND
ADP3335
IN
7
V
8
IN
IN
+
C
IN
SD
1μF
6
ON
OFF
Figure 2. Typical Application Circuit
types for space-restricted applications. The ADP3335 achieves
exceptional accuracy of ±0.9% at room temperature and ±1.8%
over temperature, line, and load.
The dropout voltage of the ADP3335 is only 200 mV (typical) at
500 mA. This device also includes a safety current limit,
thermal overload protection, and a shutdown feature. In
shutdown mode, the ground current is reduced to less than 1
μA. The ADP3335 has a low quiescent current of 80 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
©2010 Analog Devices, Inc. All rights reserved.
, 500 mA,
Q
ADP3335
OUT
ADP3335
R1
R1
CC
NR
gm
R2
+
BANDGAP
REF
Figure 1.
5
NR
OUT
3
OUT
2
OUT
1
V
OUT
+
C
OUT
GND
1μF
4
www.analog.com

ADP3335ARMZ-3.3RL7 Summary of contents

  • Page 1

    FEATURES High accuracy over line and load: ±0.9% @ 25°C, ±1.8% over temperature Ultralow dropout voltage: 200 mV (typ) @ 500 mA Requires only C = 1.0 μF for stability O anyCAP = stable with any type of capacitor (Including ...

  • Page 2

    ADP3335 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 ESD Caution .................................................................................. 4 Pin Configuration and Function Descriptions ...

  • Page 3

    SPECIFICATIONS All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC) methods. Ambient temperature of 85°C corresponds to a junction temperature of 125°C under pulsed full-load test conditions. Application stable with no load ...

  • Page 4

    ADP3335 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Input Supply Voltage Shutdown Input Voltage Power Dissipation Operating Ambient Temperature Range Operating Junction Temperature Range θ , 2-layer MSOP-8 JA θ , 4-layer MSOP-8 JA θ , 2-layer LFCSP-8 JA θ , ...

  • Page 5

    PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic Function OUT Output of the Regulator. Bypass to ground with a 1.0 μF or larger capacitor. All pins must be connected together for proper ...

  • Page 6

    ADP3335 TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted A 2.202 2.201 2.200 2.199 150mA 2.198 2.197 2.196 300mA 2.195 500mA 2.194 INPUT VOLTAGE (V) Figure 5. Line Regulation Output Voltage ...

  • Page 7

    OUTPUT ( mA) Figure 11. Dropout Voltage vs. Output Current 3.0 2.5 2.0 1.5 1.0 0 TIME ( sec) Figure 12. Power-Up/Power-Down μ ...

  • Page 8

    ADP3335 2.3 2.2 2.1 400 200 0 200 400 600 TIME (μs) Figure 17. Load Transient Response 2.2 0 800mΩ FULL SHORT 3 SHORT 200 400 600 TIME (μs) Figure 18. Short-Circuit Current 3 1μF 2 10μF ...

  • Page 9

    THEORY OF OPERATION The ADP3335 uses a single control loop for regulation and reference functions. The output voltage is sensed by a resistive voltage divider, R1 and R2, which is varied to provide the available output voltage option. Feedback is ...

  • Page 10

    ADP3335 APPLICATIONS INFORMATION OUTPUT CAPACITOR SELECTION As with any micropower device, output transient response is a function of the output capacitance. The ADP3335 is stable over a wide range of capacitor values, types, and ESR (anyCAP). A capacitor as low ...

  • Page 11

    PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS All surface-mount packages rely on the traces of the PC board to conduct heat away from the package. Use the following general guidelines when designing printed circuit boards to improve both electrical and thermal performance. ...

  • Page 12

    ADP3335 OUTLINE DIMENSIONS PIN 1 INDICATOR 0.90 MAX 0.85 NOM SEATING PLANE IDENTIFIER 3.25 0.60 MAX 3.00 SQ 2.75 0.60 MAX 2.95 2.75 SQ TOP VIEW 2.55 0.50 0.40 12° MAX 0.30 0.70 MAX 0.65 TYP 0.05 MAX FOR PROPER ...

  • Page 13

    ... V ADP3335ARMZ-2.5–RL 2.5 V ADP3335ARMZ-2.5–RL7 2.5 V ADP3335ARMZ-2.85R7 2.85 V ADP3335ARMZ-2.85RL 2.85 V ADP3335ARMZ-3.3–RL 3.3 V ADP3335ARMZ-3.3RL7 3.3 V ADP3335ARMZ-5– ADP3335ARMZ-5–REEL RoHS Compliant Part. 2 For additional voltage options, contact a local sales or distribution representative RoHS Compliant Parts have a "#" marked on the device preceding the date code. ...

  • Page 14

    ADP3335 NOTES Rev Page ...

  • Page 15

    NOTES Rev Page ADP3335 ...

  • Page 16

    ADP3335 NOTES ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00147-0-6/10(B) Rev Page ...