Analog Devices ADP3300 b Datasheet

High Accuracy anyCAP
E
®
a
50 mA Low Dropout Linear Regulator
FEATURES High Accuracy Over Line and Load: 0.8% @ 25C,
1.4% Over Temperature Ultralow Dropout Voltage: 80 mV Typical @ 50 mA Requires Only C
= 0.47 F for Stability
O
anyCAP = Stable with All Types of Capacitors
(Including MLCC) Current and Thermal Limiting Low Noise Dropout Detector Low Shutdown Current: 1 ␮A
3.0 V to 12 V Supply Range –40C to +85C Ambient Temperature Range Several Fixed Voltage Options Ultrasmall SOT-23 6-Lead Package Excellent Line and Load Regulation
APPLICATIONS Cellular Telephones Notebook, Palmtop Computers Battery Powered Systems PCMCIA Regulators Bar Code Scanners Camcorders, Cameras
GENERAL DESCRIPTION
The ADP3300 is a member of the ADP330x family of precision low dropout anyCAP voltage regulators. The ADP3300 stands out from conventional LDOs with a novel architecture and an enhanced process. Its patented design requires only a 0.47 µF output capacitor for stability. This device is stable with any capacitor, regardless of its ESR (Equivalent Series Resistance) value, including ceramic types (MLCC) for space restricted appli­cations. The ADP3300 achieves exceptional accuracy of ±0.8% at room temperature and ± 1.4% overall accuracy over tempera­ture, line and load variations. The dropout voltage of the ADP3300 is only 80 mV (typical) at 50 mA.
The ADP3300 operates with a wide input voltage range from
3.0 V to 12 V and delivers a load current in excess of 50 mA. It features an error flag that signals when the device is about to lose regulation or when the short circuit or thermal overload
ADP3300
FUNCTIONAL BLOCK DIAGRAM
CC
BANDGAP
R1 330k
E
ADP3300
g
m
REF
+
OUT
+
C2
0.47F
OUT
R1
R2
V
= +5V
OUT
IN
RR
SD
V
IN
0.47F
Q2
C1
THERMAL
PROTECTION
+
ADP3300-5
IN
ON
OFF
SD
Q1
DRIVER
GND
NR
OUT
ERR
GND
Figure 1. Typical Application Circuit
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 200 mA:
ADP3301 (100 mA) ADP3302 (100 mA, Dual Output) ADP3303 (200 mA)
anyCAP is a registered trademark of Analog Devices Inc.
REV. B
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 that 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: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2001
ADP3300–SPECIFICATIONS
(@ TA = –40C to +85C, VIN = 7 V, CIN = 0.47 F, C otherwise noted)
= 0.47 F, unless
OUT
Parameter Symbol Conditions Min Typ Max Unit
OUTPUT VOLTAGE V
OUT
ACCURACY I
VIN = V
T
V
OUT(NOM)
= 0.1 mA to 50 mA
L
= 25°C –0.8 +0.8 %
A
= V
IN
OUT(NOM)
0.3 V to 12 V
0.3 V to 12 V
IL = 0.1 mA to 50 mA –1.4 +1.4 %
LINE REGULATION ∆V
V
LOAD REGULATION ∆V
I
GROUND CURRENT I
GND
O
IN
O
L
= V
IN
OUT(NOM)
TA = 25°C 0.02 mV/V
IL = 0.1 mA to 50 mA TA = 25°C 0.06 mV/mA
IL = 50 mA 0.55 1.7 mA
0.3 V to 12 V
V
IL = 0.1 mA 0.19 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 V
OUT
OUT(NOM)
IL = 50 mA 0.08 0.17 V I
= 10 mA 0.025 0.07 V
L
IL = 1 mA 0.004 0.03 V
SHUTDOWN THRESHOLD V
THSD
ON 2.0 0.75 V OFF 0.75 0.3 V
SHUTDOWN PIN I
SDIN
0 < V
INPUT CURRENT 5 < V
GROUND CURRENT IN I
Q
VSD = 0, VIN = 12 V
SHUTDOWN MODE T
V
5 V 1 µA
SD
12 V @ VIN = 12 V 22 µA
SD
= 25°C 0.005 1 µA
A
= 0, VIN = 12 V
SD
TA = 85°C0.013µA
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
OUTPUT NOISE V
EOL
LDPK
NOISE
@ 5 V OUTPUT C
I
= 400 µA 0.12 0.3 V
SINK
VIN = V
OUT(NOM)
1 V 100 mA
f = 10 Hz–100 kHz
= 0 100 µV rms
NR
CNR = 10 nF, CL = 10 µF30µV rms
NOTE 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.
–2–
REV. B
ADP3300
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
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165°C/W
θ
JA
θ
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92°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; operation beyond these limits can cause the device to
be permanently damaged.
PIN CONFIGURATION
Pin Mnemonic Function
1 GND Ground Pin
2 NR Noise Reduction Pin. Used for further
3 SD Active Low Shutdown Pin. Connect to
4 OUT Output of the Regulator, fixed 2.7, 3.0, 3.2,
5 IN Regulator Input 6 ERR Open Collector Output which goes low to
PIN FUNCTION DESCRIPTIONS
reduction of the output noise (see text for details). No connection if not used.
ground to disable the regulator output. When shutdown is not used, this pin should be connected to the input pin.
3.3 or 5 volts output voltage. Bypass to ground with a 0.47 µF or larger capacitor.
indicate that the output is about to go out
GND
NR
SD
1
ADP3300
2
TOP VIEW
(Not to Scale)
3
6
ERR
5
IN
OUT
4
of regulation.
ORDERING GUIDE
Model Voltage Output Package Description Package Options Branding Information
ADP3300ART-2.7 2.7 V Surface Mount SOT-23-6 LAB ADP3300ART-2.85 2.85 V Surface Mount SOT-23-6 LFB ADP3300ART-3 3.0 V Surface Mount SOT-23-6 LBB ADP3300ART-3.2 3.2 V Surface Mount SOT-23-6 LCB ADP3300ART-3.3 3.3 V Surface Mount SOT-23-6 LDB ADP3300ART-5 5.0 V Surface Mount SOT-23-6 LEB
Contact the factory for the availability of other output voltage options.
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 ADP3300 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.
REV. B
–3–
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