ADP3307 데이터 시트보기 (PDF) - Analog Devices
부품명
상세내역
제조사
ADP3307 Datasheet PDF : 8 Pages
| |||
a
High Accuracy anyCAP®
100 mA Low Dropout Linear Regulator
ADP3307
FEATURES
FUNCTIONAL BLOCK DIAGRAM
High Accuracy Over Line and Load: ؎0.8% @ 25؇C,
؎1.4% Over Temperature
Ultralow Dropout Voltage: 120 mV Typical @ 100 mA
IN
Q1
ADP3307
OUT
Requires only CO = 0.47 F for Stability
R1
anyCAP = Stable with All Types of Output Capacitors
ERR
THERMAL
PROTECTION
CC
(Including MLCC)
NR
Current and Thermal Limiting
Low Noise
Dropout Detector
Low Shutdown Current: 1 A
3.0 V to 12 V Supply Range
–20؇C to +85؇C Ambient Temperature Range
E Several Fixed Voltage Options
Ultrasmall SOT-23-6 (RT-6) Package
Excellent Line and Load Regulation
T APPLICATIONS
Cellular Telephones
Notebook, Palmtop Computers
Battery Powered Systems
E PCMCIA Regulator
Bar Code Scanners
L Camcorders, Cameras
Q2
SD
DRIVER
GND
gm
R2
BANDGAP
REF
VIN
C1 +
0.47F –
NR
ADP3307-3.3
IN
OUT
ERR
R1
330k⍀
EOUT
VOUT = +3.3V
C2
0.47F
ON
OFF
SD
GND
Figure 1. Typical Application Circuit
GENERAL DESCRIPTION
O The ADP3307 is a member of the ADP330x family of precision
low dropout anyCAP voltage regulators. The ADP3307 stands
out from the conventional LDOs with a novel architecture and
an enhanced process. Its patented design requires only a 0.47 µF
S output capacitor for stability. This device is stable with any type
of capacitor regardless of its ESR (Equivalent Series Resistance)
value, including ceramic types (MLCC) for space restricted
applications. The ADP3307 achieves exceptional accuracy of
B ± 0.8% at room temperature and ± 1.4% overall accuracy over
temperature, line and load variations. The dropout voltage of
the ADP3307 is only 120 mV (typical) at 100 mA.
The ADP3307 operates with a wide input voltage range from
O 3.0 V to 12 V and delivers a load current in excess of 100 mA.
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-23-6)
ADP3307 (100 mA, SOT-23-6)
ADP3301 (100 mA, R-8)
ADP3302 (100 mA, Dual Output)
ADP3303 (200 mA)
It features an error flag that signals when the device is about to
anyCAP is a registered trademark of Analog Devices, Inc.
REV. A
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
Share Link: 