IC REG LDO 200MA 2.85V SOT-23-6

ADP3330ART-2.85-R7

Manufacturer Part NumberADP3330ART-2.85-R7
DescriptionIC REG LDO 200MA 2.85V SOT-23-6
ManufacturerAnalog Devices Inc
SeriesanyCAP®
ADP3330ART-2.85-R7 datasheet
 


Specifications of ADP3330ART-2.85-R7

Rohs StatusRoHS non-compliantDesign ResourcesHalf-Duplex, Isolated RS-485 Interface (CN0031)
Regulator TopologyPositive FixedVoltage - Output2.85V
Voltage - InputUp to 12VVoltage - Dropout (typical)0.14V @ 200mA
Number Of Regulators1Current - Output200mA
Operating Temperature-40°C ~ 85°CMounting TypeSurface Mount
Package / CaseSOT-23-6Current - Limit (min)-
Other namesADP3330ART-2.85R7  
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FEATURES
High Accuracy Over Line and Load:
1.4% Over Temperature
Ultralow Dropout Voltage: 140 mV (Typ) @ 200 mA
Requires Only C
= 0.47 F for Stability
O
anyCAP = Stable with Any Type of Capacitor
(Including MLCC)
Current and Thermal Limiting
Low Noise
Low Shutdown Current: <2 A
2.9 V to 12 V Supply Range
–40 C to +85 C 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
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 con-
ventional 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 F output capacitor for stability. This
device is insensitive to output capacitor Equivalent Series
Resistance (ESR), and is stable with any good quality capaci-
tor, 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 A. The ADP3330 has ultralow quiescent current
34 A (typ) in light load situations.
anyCAP and Chip-on-Lead are trademarks of Analog Devices, Inc.
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.
High Accuracy Ultralow I
200 mA, SOT-23, anyCAP
FUNCTIONAL BLOCK DIAGRAM
0.7% @ +25 C,
IN
THERMAL
PROTECTION
ERR
SD
The SOT-23-6 package has been thermally enhanced using
Analog Devices’ proprietary Chip-on-Lead feature to maximize
power dissipation.
V
IN
0.47 F
Figure 1. Typical Application Circuit
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Low Dropout Regulator
ADP3330
Q1
ADP3330
CC
g
DRIVER
m
BANDGAP
REF
GND
NR
ERR
ADP3330
IN
OUT
V
OUT
+
+
C
C
IN
OUT
SD
GND
0.47 F
ON
OFF
World Wide Web Site: http://www.analog.com
© Analog Devices, Inc., 1999
,
Q
OUT
R1
R2

ADP3330ART-2.85-R7 Summary of contents

  • Page 1

    FEATURES High Accuracy Over Line and Load: 1.4% Over Temperature Ultralow Dropout Voltage: 140 mV (Typ) @ 200 mA Requires Only C = 0.47 F for Stability O anyCAP = Stable with Any Type of Capacitor (Including MLCC) Current ...

  • Page 2

    ADP3330-xx–SPECIFICATIONS 1, 2 unless otherwise noted). The following specifications apply to all voltage options except –2.5. Parameter OUTPUT VOLTAGE ACCURACY LINE REGULATION LOAD REGULATION GROUND CURRENT GROUND CURRENT IN DROPOUT DROPOUT VOLTAGE PEAK LOAD CURRENT 3 OUTPUT NOISE SHUTDOWN THRESHOLD ...

  • Page 3

    ADP3330-2.5–SPECIFICATIONS 1, 2 unless otherwise noted). Parameter OUTPUT VOLTAGE ACCURACY LINE REGULATION LOAD REGULATION GROUND CURRENT GROUND CURRENT IN DROPOUT DROPOUT VOLTAGE PEAK LOAD CURRENT 3 OUTPUT NOISE SHUTDOWN THRESHOLD SHUTDOWN PIN INPUT CURRENT GROUND CURRENT IN SHUTDOWN MODE OUTPUT ...

  • Page 4

    ... ORDERING GUIDE Voltage Package Model Output Option* ADP3330ART-2.5 2.5 V RT-6 (SOT-23-6) ADP3330ART-2.75 2.75 V RT-6 (SOT-23-6) ADP3330ART-2.85 2.85 V RT-6 (SOT-23-6) ADP3330ART-3 3.0 V RT-6 (SOT-23-6) ADP3330ART-3.3 3.3 V RT-6 (SOT-23-6) ADP3330ART-3.6 3.6 V RT-6 (SOT-23-6) ADP3330ART-5 5.0 V RT-6 (SOT-23-6) *Contact the factory for the availability of other output voltage options ...

  • Page 5

    V = 3.0V OUT 3.008 3.006 I = 0mA L 3.004 I = 10mA L 3.002 I = 50mA L 3.000 I = 100mA L 2.998 I = 150mA L 2.996 2.994 I = 200mA L 2.992 2.990 3.25 ...

  • Page 6

    ADP3330 3.020 3.000 OUT 2.980 0. 2.960 2.940 7.5 7.0 0 100 200 300 400 500 TIME – s Figure 11. Line Transient Response 3.100 3.050 3.000 V = ...

  • Page 7

    THEORY OF OPERATION The new anyCAP LDO ADP3330 uses a single control loop for regulation and reference functions. The output voltage is sensed by a resistive voltage divider consisting of R1 and R2 which is varied to provide the available ...

  • Page 8

    ADP3330 APPLICATION INFORMATION Capacitor Selection Output Capacitors: as with any micropower device, output transient response is a function of the output capacitance. The ADP3330 is stable with a wide range of capacitor values, types and ESR (anyCAP). A capacitor as ...

  • Page 9

    Printed Circuit Board Layout Considerations All surface mount packages rely on the traces of the PC board to conduct heat away from the package. In standard packages the dominant component of the heat resistance path is the plastic between the ...

  • Page 10

    ADP3330 APPLICATION CIRCUITS Crossover Switch The circuit in Figure 24 shows how two ADP3330s can be used to form a mixed supply voltage system. The output switches between two different levels selected by an external digital input. Output voltages can ...

  • Page 11

    REV. A OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 6-Lead Surface Mount RT-6 (SOT-23-6) 0.122 (3.10) 0.106 (2.70 0.118 (3.00) 0.098 (2.50 PIN 1 0.037 ...

  • Page 12

    –12– ...