ADP3335ARM-18

Manufacturer Part NumberADP3335ARM-18
DescriptionHigh Accuracy Ultralow IQ/ 500 mA anyCAP Low Dropout Regulator
ManufacturerAnalog Devices
ADP3335ARM-18 datasheet
 
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FEATURES
High Accuracy Over Line and Load:
1.8% Over Temperature
Ultralow Dropout Voltage: 200 mV (Typ) @ 500 mA
Requires Only C
= 1.0 F for Stability
O
anyCAP = Stable with Any Type of Capacitor
(Including MLCC)
Current and Thermal Limiting
Low Noise
Low Shutdown Current: < 1.0 A
2.6 V to 12 V Supply Range
–40 C to +85 C Ambient Temperature Range
Ultrasmall Thermally-Enhanced 8-Lead MSOP Package
APPLICATIONS
PCMCIA Card
Cellular Phones
Camcorders, Cameras
Networking Systems, DSL/Cable Modems
Cable Set-Top Box
MP3/CD Players
DSP Supply
GENERAL DESCRIPTION
The ADP3335 is a member of the ADP330x family of precision
low dropout anyCAP voltage regulators. The ADP3335 operates
with an input voltage range of 2.6 V to 12 V and delivers a con-
tinuous load current up to 500 mA. The ADP3335 stands out
from conventional LDOs with the lowest thermal resistance of
any MSOP-8 package and an enhanced process that enables it
to offer performance advantages beyond its competition. Its
patented design requires only a 1.0 µF output capacitor for sta-
bility. 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 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 ultralow quiescent current 80 µA
(typical) in light load situations.
anyCAP is a registered trademark of Analog Devices Inc.
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
High Accuracy Ultralow I
anyCAP
0.9% @ 25 C,
IN
PROTECTION
SD
V
IN
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
, 500 mA
Q
Low Dropout Regulator
®
ADP3335
FUNCTIONAL BLOCK DIAGRAM
Q1
ADP3335
THERMAL
CC
g
DRIVER
m
BANDGAP
REF
GND
NR
ADP3335
OUT
IN
OUT
OUT
IN
+
+
C
C
IN
OUT
SD
GND
1 F
1 F
ON
OFF
Figure 1. Typical Application Circuit
World Wide Web Site: http://www.analog.com
© Analog Devices, Inc., 2000
OUT
R1
NR
R2
V
OUT