ADP3302AR2 Analog Devices, ADP3302AR2 Datasheet

no-image

ADP3302AR2

Manufacturer Part Number
ADP3302AR2
Description
High Precision anyCAP Dual Low Dropout Linear Regulator
Manufacturer
Analog Devices
Datasheet
a
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.
GENERAL DESCRIPTION
The ADP3302 is a member of the ADP330X family of precision
micropower low dropout anyCAP™ regulators. The ADP3302
contains two fully independent 100 mA regulators with separate
shutdown and merged error outputs. It features 1.4% overall
output accuracy and very low, 120 mV typical, dropout voltage.
The ADP3302 has a wide input voltage range from 3 V to
two regulators is about to lose regulation. It has short circuit
current protection as well as thermal shutdown.
The ADP3302’s enhanced lead frame design allows for a maxi-
mum power dissipation of 630 mW @ +70 C ambient temperature
and 1.0 W at room temperature without any external heat sink.
anyCAP™ is a trademark of Analog Devices, Inc.
12 V. It features an error flag that signals when either of the
FEATURES
High Accuracy:
Ultralow Dropout Voltage: 120 mV @ 100 mA Typical
Requires only C
anyCAP™ = Stable with All Types of Capacitors
Current and Thermal Limiting
Low Noise
Dropout Detector
Multiple Voltage Options
Thermally Enhanced SO-8 Package
APPLICATIONS
Cellular Telephones
Notebook and Palmtop Computers
Battery Powered Systems
Portable Instruments
High Efficiency Linear Regulators
O
0.8%
= 0.47 F for Stability
Dual Low Dropout Linear Regulator
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
ERR
SD
IN
Q2
V
IN
0.47µF
High Precision anyCAP™
FUNCTIONAL BLOCK DIAGRAM
PROTECTION
THERMAL
Figure 1. Application Circuit
World Wide Web Site: http://www.analog.com
(1/2 IS SHOWN)
5
8
3
E
GND
SD1
IN
IN
OUT
7
ADP3302
OFF
DRIVER
GND
ON
Q1
ERR
OUT1
OUT2
2
SD2
6
BANDGAP
© Analog Devices, Inc., 1997
CC
1
4
ADP3302
GM
ADP3302
REF
330k
0.47µF
0.47µF
V
V
OUT2
OUT1
R1
R2
OUT

Related parts for ADP3302AR2

ADP3302AR2 Summary of contents

Page 1

... W at room temperature without any external heat sink. anyCAP™ 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 ...

Page 2

ADP3302–SPECIFICATIONS Parameter GROUND CURRENT GROUND CURRENT IN DROPOUT DROPOUT VOLTAGE SHUTDOWN THRESHOLD SHUTDOWN PIN INPUT CURRENT GROUND CURRENT IN SHUTDOWN MODE OUTPUT CURRENT IN SHUTDOWN MODE ERROR PIN OUTPUT LEAKAGE ERROR PIN OUTPUT “LOW” VOLTAGE PEAK LOAD CURRENT THERMAL REGULATION ...

Page 3

ADP3302-3.2–SPECIFICATIONS Parameter OUTPUT VOLTAGE LINE REGULATION LOAD REGULATION CROSS REGULATION Specifications subject to change without notice. ADP3302-3.3–SPECIFICATIONS Parameter OUTPUT VOLTAGE LINE REGULATION LOAD REGULATION CROSS REGULATION Specifications subject to change without notice. ADP3302-5.0–SPECIFICATIONS Parameter OUTPUT VOLTAGE LINE REGULATION LOAD REGULATION ...

Page 4

... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ORDERING GUIDE Voltage Model Outputs ADP3302AR1 OUT 1 3.0 V OUT 2 3.0 V ADP3302AR2 OUT 1 3.2 V OUT 2 3.2 V ADP3302AR3 OUT 1 3.3 V OUT 2 3.3 V ADP3302AR4 OUT 1 3.3 V OUT 2 5.0 V ADP3302AR5 OUT 1 5 ...

Page 5

I = 0mA 1mA L 4.999 I = 20mA L 4.998 4.997 I = 100mA L 4.996 4.995 5.1 5.2 5.3 5.4 5.5 INPUT VOLTAGE – Volts Figure 2. ...

Page 6

ADP3302 –Typical Performance Characteristics 3.31 3.3 3.3k , 0.47µF LOAD 3.29 3.31 3 0.47µF LOAD 3.29 7 120 160 200 240 280 320 360 400 TIME – µs Figure 11. Line Transient ...

Page 7

APPLICATION INFORMATION ™ anyCAP The ADP3302 is an easy to use dual low dropout voltage regulator. The ADP3302 requires only a very small 0.47 F bypass capacitor on the outputs for stability. Unlike the conventional LDO designs, the ADP3302 is ...

Page 8

ADP3302 2.5V 4.2V R1 100k 120k 100µF C1 10V AVX-TPS 90k Figure 20. Cell Li-Ion to 3 V/200 mA Converter with Shutdown at V Phase One: When the input voltage is equal to 3 higher, ...

Related keywords