®
High Accuracy anyCAP
a
50 mA Low Dropout Linear Regulator
ADP3300
FEATURES
FUNCTIONAL BLOCK DIAGRAM
High Accuracy Over Line and Load: ؎0.8% @ 25؇C,
؎1.4% Over Temperature
Ultralow Dropout Voltage: 80 mV Typical @ 50 mA
Requires Only CO = 0.47 F for Stability
anyCAP = Stable with All Types of Capacitors
(Including MLCC)
Current and Thermal Limiting
Low Noise
Dropout Detector
ADP3300
Q1
OUT
IN
THERMAL
PROTECTION
R1
R2
CC
ERR
Q2
g
m
DRIVER
GND
SD
+
–
BANDGAP
REF
Low Shutdown Current: 1 A
3.0 V to 12 V Supply Range
–40؇C to +85؇C Ambient Temperature Range
Several Fixed Voltage Options
Ultrasmall SOT-23 6-Lead Package
Excellent Line and Load Regulation
APPLICATIONS
Cellular Telephones
Notebook, Palmtop Computers
Battery Powered Systems
PCMCIA Regulators
Bar Code Scanners
Camcorders, Cameras
NR
ADP3300-5
V
IN
OUT
V
= +5V
IN
OUT
+
+
GENERAL DESCRIPTION
R1
C1
0.47F
C2
330k⍀
The ADP3300 is a member of the ADP330x family of precision
low dropout anyCAP voltage regulators. The ADP3300 stands
out from conventional LDOs with a novel architecture and an
enhanced process. Its patented design requires only a 0.47 µF
output capacitor for stability. This device is stable with any
capacitor, regardless of its ESR (Equivalent Series Resistance)
value, including ceramic types (MLCC) for space restricted appli-
cations. The ADP3300 achieves exceptional accuracy of 0.8%
at room temperature and 1.4% overall accuracy over tempera-
ture, line and load variations. The dropout voltage of the
ADP3300 is only 80 mV (typical) at 50 mA.
0.47F
E
ERR
OUT
ON
OFF
GND
SD
Figure 1. Typical Application Circuit
protection is activated. Other features include shutdown and
optional noise reduction capabilities. The ADP330x anyCAP LDO
family offers a wide range of output voltages and output current
levels from 50 mA to 200 mA:
The ADP3300 operates with a wide input voltage range from
3.0 V to 12 V and delivers a load current in excess of 50 mA.
It features an error flag that signals when the device is about to
lose regulation or when the short circuit or thermal overload
ADP3301 (100 mA)
ADP3302 (100 mA, Dual Output)
ADP3303 (200 mA)
anyCAP is a registered trademark of Analog Devices Inc.
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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
www.analog.com
© Analog Devices, Inc., 2001