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ADP3301AR-3
Datasheet
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Analog Devices ADP3301AR-5, ADP3301AR-3.3, ADP3301AR-3.2, ADP3301AR-3, ADP3301AR-2.7 Datasheet

High Accuracy anyCAP™*
Q2
THERMAL
PROTECTION
Gm
Q1
CC
BANDGAP
REF
DRIVER
R1
R2
ADP3301
OUT
IN
ERR
SD
GND
a
100 mA Low Dropout Linear Regulator
FEATURES High Accuracy (Over Line and Load Regulations
at +258C): 60.8% Ultralow Dropout Voltage: 100 mV Typical @ 100 mA Requires Only CO = 0.47 mF for Stability anyCAP™* = Stable with All Types of Capacitors Current and Thermal Limiting Low Noise Dropout Detector Low Shutdown Current: 1 mA Several Fixed Voltage Options
3.0 V to 12 V Supply Range –208C to +858C Ambient Temperature Range Thermally Enhanced SO-8 Package Excellent Line and Load Regulations
APPLICATIONS Cellular Telephones Notebook, Palmtop Computers Battery Powered Systems Portable Instruments Post Regulator for Switching Supplies Bar Code Scanners
GENERAL DESCRIPTION
The ADP3301 is a member of the ADP330x family of precision low dropout anyCAP™* voltage regulators. The ADP3301 stands out from the conventional LDOs with a novel architec­ture, an enhanced process and a new package. Its patented design includes a noninverting wideband driver and a stage that permits the use of an internal “pole splitting” capacitor to stabilize the feedback loop with a single output capacitor as small as 0.47 µF. This device is stable with any type of capacitor regardless of its ESR (Equivalent Serial Resistance) value, including ceramic types (MLCC) for space restricted applica­tions. The ADP3301 achieves exceptional accuracy of ±0.8% at room temperature and ±1.4% overall accuracy over tempera­ture, line and load regulations. The dropout voltage of the ADP3301 is only 100 mV (typical) at 100 mA.
In addition to the new architecture and process, ADI’s new proprietary thermally enhanced package (Thermal Coastline) can handle 1 W of power dissipation without external heat sink or large copper surface on the PC board. This keeps PC board real estate to a minimum and makes the ADP3301 very attractive for use in portable equipment.
ADP3301

FUNCTIONAL BLOCK DIAGRAM

The ADP3301 operates with a wide input voltage range from 3 V to 12 V and delivers a load current in excess of 100 mA. It features an error flag that signals when the device is about to lose regulation or when the short circuit or thermal overload 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 300 mA:
ADP3300 (50 mA, SOT-23) ADP3302 (100 mA, Dual Output) ADP3304 (100 mA, Dual Output with Separate Grounds) ADP3303 (200 mA) ADP3306 (300 mA)
3
NR
ADP3301-5.0
V
IN
0.47µF
7
IN
C1
8
5
ON
OFF
Figure 1. Typical Application Circuit
OUT
ERR
4
GND
1 2
R1 330kΩ
6
E
OUT
C2
0.47µF
V
= +5V
OUT
*anyCAP is a trademark of Analog Devices Inc.
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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.
ADP3301–xx–SPECIFICA TIONS

ELECTRICAL CHARACTERISTICS

(@ TA = –208C to +858C, VIN = 7 V, CIN = 0.47 mF, C
= 0.47 mF, unless otherwise noted)
OUT
Parameter Symbol Conditions Min Typ Max Units
OUTPUT VOLTAGE V
OUT
ACCURACY I
VIN = Nom V
= 0.1 mA to 100 mA
L
T
= +25°C –0.8 +0.8 %
A
V
= Nom V
IN
+0.3 V to 12 V
OUT
+0.3 V to 12 V
OUT
IL = 0.1 mA to 100 mA –1.4 +1.4 %
LINE REGULATION ∆V
∆V
LOAD REGULATION ∆V
∆I
GROUND CURRENT I
GND
O IN
O
L
V
= Nom V
IN
+0.3 V to 12 V
OUT
TA = +25°C 0.024 mV/V IL = 0.1 mA to 100 mA
TA = +25°C 0.014 mV/mA IL = 100 mA 0.85 2 mA
IL = 0.1 mA 0.18 0.3 mA
GROUND CURRENT I
GND
VIN = 2.5 V
IN DROPOUT IL = 0.1 mA 0.6 1.2 mA
DROPOUT VOLTAGE V
DROP
V
= 98% of VO Nominal
OUT
I
= 100 mA 0.1 0.2 V
L
I
= 10 mA 0.02 0.07 V
L
IL = 1 mA 0.003 0.03 V
SHUTDOWN THRESHOLD V
THSD
ON 2.0 0.9 V OFF 0.9 0.3 V
1
SHUTDOWN PIN I
SDIN
0 < V
< 5 V 1 µA
SD
INPUT CURRENT 5 ≤ VSD ≤ 12 V @ VIN = 12 V 22 µA GROUND CURRENT IN I
Q
SHUTDOWN MODE T
VSD = 0, VIN = 12 V
= +25°C1µA
A
V
= 0, VIN = 12 V
SD
TA = +85°C5µA
OUTPUT CURRENT IN I
OSD
TA = +25°C @ VIN = 12 V 2 µA
SHUTDOWN MODE TA = +85°C @ VIN = 12 V 4 µA
ERROR PIN OUTPUT
LEAKAGE I
EL
VEO = 5 V 13 µA
ERROR PIN OUTPUT
“LOW” VOLTAGE V PEAK LOAD CURRENT I THERMAL REGULATION ∆ V
OUTPUT NOISE V
EOL
LDPK
V
O
NOISE
O
@ 5 V OUTPUT C
I
= 400 µA 0.13 0.3 V
SINK
VIN = Nom V
+ 1 V 200 mA
OUT
VIN = 12 V, IL = 100 mA T = 10 ms 0.015 %/W
f = 10 Hz–100 kHz
= 0 100 µV rms
NR
CNR = 10 nF, CL = 10 µF30µV
NOTES
1
Ambient temperature of +85°C corresponds to a typical junction temperature of +125°C under typical full load test conditions.
Specifications subject to change without notice.
rms
–2–
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ADP3301
WARNING!
ESD SENSITIVE DEVICE
ABSOLUTE MAXIMUM RATINGS*
Input Supply Voltage . . . . . . . . . . . . . . . . . . . –0.3 V to +16 V
Shutdown Input Voltage . . . . . . . . . . . . . . . . –0.3 V to +16 V
Error Flag Output Voltage . . . . . . . . . . . . . . . –0.3 V to +16 V
Noise Bypass Pin Voltage . . . . . . . . . . . . . . . . –0.3 V to +5 V
Power Dissipation . . . . . . . . . . . . . . . . . . . Internally Limited
Operating Ambient Temperature Range . . . –55°C to +125°C Operating Junction Temperature Range . . . –55°C to +125°C
θ
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96°C/W
JA
θ
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C/W
JC
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering 10 sec) . . . . . . . . +300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
*This is a stress rating only; functional operation of the device at these or any other
conditions above those indicated in the operation section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ORDERING GUIDE

Model Voltage Output Package Option*
ADP3301AR-2.7 2.7 V SO-8 ADP3301AR-3 3.0 V SO-8 ADP3301AR-3.2 3.2 V SO-8 ADP3301AR-3.3 3.3 V SO-8 ADP3301AR-5 5.0 V SO-8
Contact the factory for the availability of other output voltage options. *SO = Small Outline.
Other Members of anyCAP™* Family
Output Package
Model Current Option
2
1
Comments
ADP3300 50 mA SOT-23 High Accuracy ADP3302 100 mA SO-8 Dual Output ADP3304 100 mA SO-8 Dual Output with
Separate Grounds ADP3303 200 mA SO-8 High Accuracy ADP3306 300 mA SO-8,TSSOP-14 High Accuracy,
High Current
NOTES
1
See individual data sheets for detailed ordering information.
2
SO = Small Outline, SOT = Surface Mount, TSSOP = Thin Shrink Small Outline.
PIN FUNCTION DESCRIPTIONS
Pin Mnemonic Function
1 & 2 OUT Output of the Regulator, fixed 2.7, 3.0,
3.2, 3.3 or 5 volts output voltage. By­pass to ground with a 0.47 µF or larger capacitor. Pins 1 and 2 must be con-
nected together for proper operation.
3 NR Noise Reduction Pin. Used for further
reduction of the output noise. (See text
for details.) No connection if not used. 4 GND Ground Pin. 5
SD Active 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. 6 ERR Open Collector Output which goes low
to indicate that the output is about to
go out of regulation. 7 & 8 IN Regulator Input. Pins 7 and 8 must
be connected together for proper
operation.
PIN CONFIGURATION
1
OUT
2
OUT
ADP3301
TOP VIEW
3
NR
(Not to Scale)
GND
4
PIN FOR 5V DEVICE
8
IN
7
IN
6
ERR
SD
5
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 ADP3301 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.
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–3–
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