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參數資料
| 型號： | CM3018-33ST |
| 廠商： | California Micro Devices Corporation |
| 英文描述： | Micropower, 150mA Low Noise CMOS Regulator with Fast Response |
| 中文描述： | 微功耗，150mA的低噪聲的CMOS穩壓器的快速響應 |
| 文件頁數： | 1/11頁 |
| 文件大?。?/td> | 302K |
| 代理商： | CM3018-33ST |
2004 California Micro Devices Corp. All rights reserved.
07/29/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲
Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
1
CM3018
PRELIMINARY
Micropower, 150mA Low Noise CMOS Regulator
with Fast Response
Features
Available with 1.5V, 1.8V, 2.5V, 2.6V, 2.8V, 2.85V,
2.9V, 3.0V, 3.1V or 3.3V outputs
Fast (60
μ
s) V
OUT
response when enabled
Ultra low noise (35
μ
V rms typ.)
Delivers up to 150mA output current
Very low dropout (150mV at 150mA)
Low quiescent operating current (110
μ
A)
Stable with low-ESR ceramic capacitors
“Zero” disable mode current consumption
Thermal overload protection
Foldback overload current protection
-40°C to +85°C temperature operation
Available in a 5-pin SOT23 and 5-bump Chip Scale
Packages (CSP)
Lead-free versions available
Applications
Wireless handsets, PDAs, MP3 players, digital
cameras
PCs and notebooks
Graphics cards, set-top boxes
Compact Flash memory cards
Battery-powered devices
PC cards
Product Description
The CM3018 is a very low dropout, low noise regulator
that delivers up to 150mA of load current at a fixed out-
put voltage.
A dedicated control input (EN, Active High) provides
power-up sequencing flexibility. When this input is
taken low, the regulator is disabled. In this state, the
supply current will drop to near zero. An internal dis-
charge MOSFET resistance (300
) will force the out-
put to ground whenever the device is disabled.
An optional bypass pin is provided for further improve-
ment of noise performance and to maximize the power
supply ripple rejection.
The CM3018 is fully protected, offering both overload
current limiting and high temperature thermal shut-
down.
The CM3018 is available in a tiny 5 lead SOT-23 pack-
age or a 5-bump CSP and is ideal for space critical
applications. The CSP version of the CM3018 incorpo-
rates OptiGuard
TM
technology to provide increased reli-
ability at assembly.
All versions of the CM3018 are now available with
optional lead-free finishing.
Simplified Electrical Schematic
Typical Application Circuit
V
IN
EN
V
OUT
GND
1
μ
F
1
μ
F
+
-
OUT
+
+
BYP
10nF
C
OUT
C
IN
GND
CM3018
C
BYP
EN
+
V
IN
GND
V
OUT
-
BYP
V
REF
1x
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