參數(shù)資料
型號(hào)： ADP3330ART-25
廠商： Analog Devices, Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
中文描述： 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護(hù)
文件頁數(shù)： 1/12頁
文件大?。?/td> 137K
代理商： ADP3330ART-25
REV. A
a
ADP3330
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1999
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.
High Accuracy Ultralow I
Q
,
200 mA, SOT-23, anyCAP
Low Dropout Regulator
FUNCTIONAL BLOCK DIAGRAM
THERMAL
PROTECTION
CC
IN
ADP3330
OUT
R1
R2
GND
Q1
SD
BANDGAP
REF
DRIVER
g
m
ERR
FEATURES
High Accuracy Over Line and Load:
6
0.7% @ +25
8
C,
6
1.4% Over Temperature
Ultralow Dropout Voltage: 140 mV (Typ) @ 200 mA
Requires Only C
O
= 0.47
m
F for Stability
anyCAP = Stable with Any Type of Capacitor
(Including MLCC)
Current and Thermal Limiting
Low Noise
Low Shutdown Current: <2
m
A
2.9 V to 12 V Supply Range
–40
8
C to +85
8
C Ambient Temperature Range
Ultrasmall Thermally Enhanced Chip-on-Lead
SOT-23-6 6-Lead Package
APPLICATIONS
Cellular Telephones
Notebook, Palmtop Computers
Battery Powered Systems
PCMCIA Regulator
Bar Code Scanners
Camcorders, Cameras
GENERAL DESCRIPTION
The ADP3330 is a member of the ADP330x family of precision
low dropout anyCAP voltage regulators. The ADP3330 operates
with an input voltage range of 2.9 V to 12 V and delivers a load
current up to 200 mA. The ADP3330 stands out from the con-
ventional 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 0.47
μ
F output capacitor for stability. This
device is insensitive to output capacitor Equivalent Series
Resistance (ESR), and is stable with any good quality capaci-
tor, including ceramic (MLCC) types for space-restricted
applications. The ADP3330 achieves exceptional accuracy of
±
0.7% at room temperature and
±
1.4% over temperature, line
and load variations. The dropout voltage of the ADP3330 is
only 140 mV (typical) at 200 mA. This device also includes a
safety current limit, thermal overload protection and a shutdown
feature. In shutdown mode, the ground current is reduced to
less than 2
μ
A. The ADP3330 has ultralow quiescent current
34
μ
A (typ) in light load situations.
anyCAP and Chip-on-Lead are trademarks of Analog Devices, Inc.
V
OUT
V
IN
+
–
ADP3330
NR
OUT
ERR
ON
OFF
SD
GND
IN
C
OUT
0.47
m
F
C
IN
0.47
m
F
+
–
Figure 1. Typical Application Circuit
The SOT-23-6 package has been thermally enhanced using
Analog Devices’ proprietary Chip-on-Lead feature to maximize
power dissipation.
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參數(shù)描述
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