FEATURES
High Accuracy Over Line and Load: 60.7% @ +258C,
61.4% Over Temperature
Ultralow Dropout Voltage: 140 mV (Typ) @ 200 mA
Requires Only C
anyCAP = Stable with Any Type of Capacitor
(Including MLCC)
Current and Thermal Limiting
Low Noise
Low Shutdown Current: <2 mA
2.9 V to 12 V Supply Range
–408C to +858C Ambient Temperature Range
Ultrasmall Thermally Enhanced Chip-on-Lead™
SOT-23-6 6-Lead Package
APPLICATIONS
Cellular Telephones
Notebook, Palmtop Computers
Battery Powered Systems
PCMCIA Regulator
Bar Code Scanners
Camcorders, Cameras
= 0.47 mF for Stability
O
ERR
SD
200 mA, SOT-23, anyCAP
™
Low Dropout Regulator
ADP3330
FUNCTIONAL BLOCK DIAGRAM
IN
THERMAL
PROTECTION
Q1
DRIVER
GND
CC
ADP3330
g
m
BANDGAP
REF
OUT
R1
R2
GENERAL DESCRIPTION
The ADP3330 is a member of the ADP330x family of precision
low dropout anyCAP voltage regulators. The ADP3330 operates
with an input voltage range of 2.9 V to 12 V and delivers a load
current up to 200 mA. The ADP3330 stands out from the conventional LDOs with a novel architecture and an enhanced
process that enables it to offer performance advantages and
higher output current than its competition. Its patented design
requires only a 0.47 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) types for space-restricted
applications. The ADP3330 achieves exceptional accuracy of
±0.7% at room temperature and ±1.4% over temperature, line
and load variations. The dropout voltage of the ADP3330 is
only 140 mV (typical) at 200 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 2 µA. The ADP3330 has ultralow quiescent current
34 µA (typ) in light load situations.
anyCAP and Chip-on-Lead are trademarks of Analog Devices, Inc.
The SOT-23-6 package has been thermally enhanced using
Analog Devices’ proprietary Chip-on-Lead feature to maximize
power dissipation.
NR
ERR
ADP3330
V
IN
0.47mF
+
C
IN
–
OUT
IN
SD
GND
ON
OFF
V
OUT
+
C
OUT
–
0.47mF
Figure 1. Typical Application Circuit
REV. A
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.
*Contact the factory for the availability of other output voltage options.
PIN FUNCTION DESCRIPTIONS
PinNameFunction
1OUTOutput of the Regulator. Bypass to ground
with a 0.47 µF or larger capacitor.
2INRegulator Input.
3ERROpen Collector Output that goes low to
indicate that the output is about to go out
of regulation.
4GNDGround Pin.
5NRNoise Reduction Pin. Used for further
reduction of output noise (see text for
detail). No connection if not used.
6SDActive Low Shutdown Pin. Connect to
ground to disable the regulator output.
When shutdown is not used, this pin
should be connected to the input pin.
PIN CONFIGURATION
OUT
ERR
1
2
IN
3
ADP3330
TOP VIEW
(Not to Scale)
6
SD
5
NR
4
GND
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADP3330 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
–4–
REV. A
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