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ADP3335ACPZ-5-R7

Part # ADP3335ACPZ-5-R7
Description LDO REG 5V 0.8A 8LFCSP EP - Tape and Reel
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

High Accuracy, Ultralow I
Q
, 500 mA,
anyCAP Low Dropout Regulator
Data Sheet
ADP3335
Rev. C Document Feedback
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©20002012 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
High accuracy over line and load: ±0.9% at 25°C, ±1.8% over
temperature
Ultralow dropout voltage: 200 mV (typical) at 500 mA
Requires only C
O
= 1.0 µF for stability
anyCAP® = stable with any type of capacitor (including MLCC)
Current and thermal limiting
Low noise
Low shutdown current: < 10 nA (typical)
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
FUNCTIONAL BLOCK DIAGRAM
gm
CC
Q1
IN
OUT
NR
R1
BANDGAP
REF
GND
SD
ADP3335
+
R1
R2
00147-0-001
THERMAL
PROTECTION
DRIVER
Figure 1.
NR
IN
IN
OUT
OUT
OUT
GND
SD
ADP3335
ON
OFF
V
IN
C
IN
1µF
++
V
OUT
00147-0-002
5
3
2
1
4
6
7
8
C
OUT
1µF
Figure 2. Typical Application Circuit
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
capacitorincluding ceramic (MLCC) 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.
ADP3335 Data Sheet
Rev. C | Page 2 of 16
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 ............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ........................................................................ 9
Applications Information .............................................................. 10
Output Capacitor Selection....................................................... 10
Input Bypass Capacitor .............................................................. 10
Noise Reduction ......................................................................... 10
Thermal Overload Protection .................................................. 10
Calculating Junction Temperature ........................................... 10
Printed Circuit Board Layout Considerations........................ 11
LFCSP Layout Considerations .................................................. 11
Shutdown Mode ......................................................................... 11
Outline Dimensions ....................................................................... 12
Ordering Guide .......................................................................... 13
REVISION HISTORY
12/12Rev. B to Rev. C
Changes to Figure 14 and Figure 16 ............................................... 7
Updated Outline Dimensions ....................................................... 12
Changes to Ordering Guide .......................................................... 13
6/10—Rev. A to Rev. B
Added Exposed Pad Notation to Figure 4 and Table 3 ................ 5
Added Exposed Pad Notation to Outline Dimensions ............. 12
Changes to Ordering Guide .......................................................... 13
1/04—Rev. 0 to Rev. A
Format Updated .................................................................. Universal
Renumbered Figures .......................................................... Universal
Removed Figure 22 ............................................................................ 6
Change to Printed Circuit Board Layout Considerations
Section .............................................................................................. 11
Added LFCSP Layout Considerations Section ........................... 11
Added Package Drawing ................................................... Universal
Changes to Ordering Guide .......................................................... 16
Data Sheet ADP3335
Rev. C | Page 3 of 16
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. V
IN
= 6.0 V, C
IN
= C
OUT
= 1.0 µF, T
A
= 40°C to +85°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
OUTPUT
Voltage Accuracy
1
V
OUT
V
IN
= V
OUT(NOM)
+ 0.4 V to 12 V 0.9 +0.9 %
I
L
= 0.1 mA to 500 mA
T
A
= 25°C
V
IN
= V
OUT(NOM)
+ 0.4 V to 12 V 1.8 +1.8 %
I
L
= 0.1 mA to 500 mA
T
A
= 85°C
V
IN
= V
OUT(NOM)
+ 0.4 V to 12 V 2.3 +2.3 %
I
L
= 0.1 mA to 500 mA
T
J
= 150°C
Line Regulation
1
V
IN
= V
OUT(NOM)
+ 0.4 V to 12 V 0.04 mV/V
I
L
= 0.1 mA
T
A
= 25°C
Load Regulation I
L
= 0.1 mA to 500 mA 0.04 mV/mA
T
A
= 25°C
Dropout Voltage V
DROP
V
OUT
= 98% of V
OUT(NOM)
L
200
370
mV
I
L
= 300 mA 140 230 mV
I
L
= 50 mA 30 110 mV
I
L
= 0.1 mA 10 40 mV
Peak Load Current I
LDPK
V
IN
= V
OUT(NOM)
+ 1 V 800 mA
Output Noise
V
NOISE
L
47
µV rms
I
L
= 500 mA, C
NR
= 10 nF
f = 10 Hz to 100 kHz, C
L
= 10 µF 95 µV rms
I
L
= 500 mA, C
NR
= 0 nF
GROUND CURRENT
In Regulation I
GND
I
L
= 500 mA 4.5 10 mA
I
L
= 300 mA 2.6 6 mA
I
L
= 50 mA 0.5 2.5 mA
I
L
= 0.1 mA 80 110 µA
In Dropout
I
GND
IN
OUT(NOM)
120
400
µA
I
L
= 0.1 mA
In Shutdown
I
GNDSD
SD
= 0 V, V
IN
= 12 V
0.01 1 µA
SHUTDOWN
Threshold Voltage
V
THSD
ON 2.0 V
OFF 0.4 V
SD
Input Current
I
SD
0 ≤
SD
5 V
1.2 3 µA
Output Current in Shutdown
I
OSD
V
IN
= 12 V, V
OUT
= 0 V 0.01 5 µA
1
V
IN
= 2.6 V to 12 V for models with V
OUT(NOM)
≤ 2.2 V.
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