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PDF ADP3339 Data sheet ( Hoja de datos )
| Número de pieza | ADP3339 | |
| Descripción | High-Accuracy Ultralow IQ/ 1.5 A/ anyCAP Low Dropout Regulator | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ADP3339 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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a High-Accuracy Ultralow IQ, 1.5 A, anyCAP®
Low Dropout Regulator
ADP3339
FEATURES
High Accuracy Over Line and Load: ؎0.9% @ 25؇C,
؎1.5% Over Temperature
Ultralow Dropout Voltage: 230 mV (Typ) @ 1.5 A
Requires Only CO = 1.0 F for Stability
anyCAP = Stable with Any Type of Capacitor
(Including MLCC)
Current and Thermal Limiting
Low Noise
2.8 V to 6 V Supply Range
–40؇C to +85؇C Ambient Temperature Range
SOT-223 Package
APPLICATIONS
Notebook, Palmtop Computers
SCSI Terminators
Battery-Powered Systems
PCMCIA Regulator
Bar Code Scanners
Camcorders, Cameras
FUNCTIONAL BLOCK DIAGRAM
IN Q1
THERMAL
PROTECTION
CC
OUT
R1
ADP3339
DRIVER
gm
BANDGAP
REF
R2
GND
GENERAL DESCRIPTION
The ADP3339 is a member of the ADP33xx family of precision
low dropout anyCAP voltage regulators. The ADP3339 oper-
ates with an input voltage range of 2.8 V to 6 V and delivers a
load current up to 1.5 A. The ADP3339 stands out from the
conventional 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 1.0 µF output capacitor for stability. This device
is insensitive to output capacitor Equivalent Series Resistance
(ESR), and is stable with any good quality capacitor, including
ceramic (MLCC) types for space-restricted applications. The
ADP3339 achieves exceptional accuracy of ± 0.9% at room
temperature and ± 1.5% over temperature, line and load varia-
tions. The dropout voltage of the ADP3339 is only 230 mV
(typical) at 1.5 A. This device also includes a safety current limit
and thermal overload protection. The ADP3339 has ultralow
quiescent current 130 µA (typical) in light load situations.
VIN
1F
ADP3339
IN OUT
GND
VOUT
1F
Figure 1. Typical Application Circuit
anyCAP is a registered 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 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
1 page  
ADP3339
3.31V
3.30V
3.29V
VOUT = 3.3V
ILOAD = 1.5A
COUT = 10F
5V
4V
40
80 120 140
TIME – s
180 220
3.5V
3.3V
3.1V
1.5A
1.0A
0.5A
0
0
VIN = 6V
COUT = 10F
ILOAD = 1.5A
200 400 600
TIME – s
800 1000
TPC 10. Line Transient Response
TPC 11. Load Transient Response
3.5V
3.3V
3.1V
1.5A
1.0A
0.5A
0
0
VIN = 6V
COUT = 1F
ILOAD = 1.5A
200 400 600
TIME – s
800 1000
TPC 12. Load Transient Response
3.3V
0
3A
2A
1A
0
VIN = 6V
200 400 600
TIME – s
800
TPC 13. Short-Circuit Current
0
VOUT = 3.3V
–10
–20
CL = 1F
–30 CL = 1F ILOAD = 1.5A
ILOAD = 0A
–40 CL = 10F
–50 ILOAD = 1.5A
–60
–70
–80
–90
–100
10
CL = 10F
ILOAD = 0A
100 1k
10k
100k
1M
START 10.000Hz
STOP 100,000.000Hz
FREQUENCY – Hz
TPC 14. Power Supply Ripple
Rejection
600
500
400
300
200
100
0
0
ILOAD = 1.5A
ILOAD = 0A
10 20 30 40 50
CL – F
TPC 15. RMS Noise vs. CL
(10 Hz–100 kHz)
100
10
1
0.1
0.01
CL = 1F
CL = 10F
0.001
10
100 1k
10k 100k
FREQUENCY – Hz
1M
TPC 16. Output Noise Density
REV. 0
–5–
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet ADP3339.PDF ] | |
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