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What is ADP3302AR4?

This electronic component, produced by the manufacturer "Analog Devices", performs the same function as "High Precision anyCAP Dual Low Dropout Linear Regulator".


ADP3302AR4 Datasheet PDF - Analog Devices

Part Number ADP3302AR4
Description High Precision anyCAP Dual Low Dropout Linear Regulator
Manufacturers Analog Devices　
Logo Analog Devices Logo　


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a
High Precision anyCAP™
Dual Low Dropout Linear Regulator
ADP3302
FEATURES
High Accuracy: ؎0.8%
Ultralow Dropout Voltage: 120 mV @ 100 mA Typical
Requires only CO = 0.47 ␮F for Stability
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
FUNCTIONAL BLOCK DIAGRAM
(1/2 IS SHOWN)
IN
ERR
SD
Q2
Q1
THERMAL
PROTECTION
DRIVER
GND
ADP3302
CC
GM
BANDGAP
REF
OUT
R1
R2
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
؉12 V. It features an error flag that signals when either of the
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.
VIN
0.47µF
EOUT
5 IN
2
ERR
OUT1 1
8 IN
ADP3302
3 GND
OUT2 4
SD1
7
SD2
6
ON
OFF
330kΩ
VOUT1
0.47µF
VOUT2
0.47µF
Figure 1. Application Circuit
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700 World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
© Analog Devices, Inc., 1997

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ADP3302AR4 equivalent
5.001
5
4.999
IL = 1mA
IL = 20mA
4.998
IL = 0mA
4.997
4.996
IL = 100mA
4.995
5.1 5.2 5.3 5.4 5.5 6 8 10 12 14 16
INPUT VOLTAGE – Volts
Figure 2. Line Regulation Output
Voltage vs. Supply Voltage on
ADP3302AR5
Typical Performance Characteristics–ADP3302
5.005
5.000
4.995
VIN = 7V
4.990
4.985
4.980
0
25 50 75 100 125 150 175 200
OUTPUT LOAD – mA
Figure 3. Output Voltage vs.
Load Current Up to 200 mA
on ADP3302AR5
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1
IL = IL2 =0
3 5 7 9 11 13
INPUT VOLTAGE – Volts
16
Figure 4. Quiescent Current vs.
Supply Voltage–ADP3302AR3
5
VIN = 7V
4
IL1 = 0 TO 200mA
IL2 = 0 TO 200mA
3
2
1
IL1 = 0 TO 200mA
IL2 = 0mA
0
0 50 100 150 200
OUTPUT LOAD – mA
Figure 5. Quiescent Current vs. Load
Current
0.2
0.1
0.0
–0.1
IL = 0
–0.2
–0.3
–0.4
–45 –25 –5 15 35 55 75 95 115 135
TEMPERATURE – °C
Figure 6. Output Voltage Variation %
vs. Temperature
3000
2500
2000
1500
IL1 = 100mA
IL2 = 100mA
1000 IL1 = 100mA
IL2 = 0mA
500
IL1 = 0mA
IL2 = 0mA
0
–45 –25 –5 15 35 55 75 95 115 135
TEMPERATURE – °C
Figure 7. Quiescent Current vs.
Temperature
250
200
150
100
50
0
0 20 40 60 80 100 120 140 160 180 200
OUTPUT LOAD – mA
Figure 8. Dropout Voltage vs. Output
Current
5
4
3
2
RL = 33Ω
1
0
01 23 4 321 0
INPUT VOLTAGE – Volts
Figure 9. Power-Up/Power-Down on
ADP3302AR3. SD = 3 V or VIN
8.0
VIN
7.0
6.0
5.0
4.0 VOUT
3.0
2.0 VSD = VIN
CL = 0.47µF
1.0 RL = 33Ω
0
0 20 40 60 80 100 120 140 160 180 200
TIME – µs
Figure 10. Power-Up Transient on
ADP3302AR1
REV. 0
–5–


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