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參數資料
| 型號： | CMPWR280 |
| 廠商： | California Micro Devices Corporation |
| 英文描述： | 1.5A SMARTOR Dual Regulator with V Drive |
| 中文描述： | 1.5A的SMARTOR雙穩壓器與V |
| 文件頁數： | 1/10頁 |
| 文件大?。?/td> | 265K |
| 代理商： | CMPWR280 |
2000 Calirornia Micro Devices Corp. All rights reserved.
215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
3/00
CALIFORNIA MICRO DEVICES
CMPWR280
1
Features
Automatic selection of V
or V
Drive control signal for external V
AUX
switch
Continuous 3.3V output supply
Glitch-free output during supply transitions
Built-in hysteresis for supply selection
V
CC
regulates up to 1.5A output current
V
regulates up to 375mA output current
Foldback current limiting
Thermal shutdown with hysteresis
On-chip controller operates from V
CC
, V
SBY
or V
OUT
Applications
Peripheral Component Interface (PCI) Adapter Cards
Network Interface Cards (NICs)
Multiple Powered Systems
Systems with Standby Capabilities
Product Description
The California Micro Devices SmartOR
TM
CMPWR280 is a fully
protected Dual-Input low dropout CMOS regulator that also
provides the necessary control signal for driving an external
auxiliary Pchannel MOSFET switch. The SmartOR
TM
device au-
tomatically selects one of three possible inputs on a priority
basis: V
(1.5A), V
(375mA) or V
AUX
via the drive signal
used to control an external switch.
V
is given first priority. In the event of the V
supply being
powered down, the device will automatically deselect the V
CC
prior to regulator dropout and immediately select V
SBY
(second
priority) as its power source.
If neither V
nor V
are present the drive control output will
turn-on an external P-channel MOSFET switch from an auxiliary
3.3V supply V
AUX
to V
OUT
.
All the necessary control circuitry needed to provide a smooth
and automatic transition between all three supplies has been
incorporated. This allows V
CC
to be dynamically switched with-
out loss of output voltage.
The CMPWR280 is internally protected against output
short-circuits, current overload and thermal overload.
CMPWR300 is a trademark of California Micro Devices Corp.
Pin Diagram
Typical Application Circuit
Simplified Electrical Schematic
When placing an order please specify desired shipping: Tubes or Tape & Reel.
1.5A SmartOR
TM
Dual Regulator with V
AUX
Drive
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C0660200
相關PDF資料 |
PDF描述 |
|---|---|
| CMPWR280TO | 1.5A SMARTOR Dual Regulator with V Drive |
| CMPWR300 | 500mA SMARTOR Dual Regulator with V switch |
| CMPWR300SA | 500mA SMARTOR Dual Regulator with V switch |
| CMPWR330SAT | 400mA SMARTOR Dual Regulator with V switch |
| CMPWR330 | 400mA SMARTOR Dual Regulator with V switch |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CMPWR280TA | 制造商:CMD 功能描述: |
| CMPWR280TN | 功能描述:低壓差穩壓器 - LDO 15A Dual Regulator with Vaux Drive RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| CMPWR280TO | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:1.5A SMARTOR Dual Regulator with V Drive |
| CMPWR300 | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:500mA SMARTOR Dual Regulator with V switch |
| CMPWR300SA | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:500mA SMARTOR Dual Regulator with V switch |
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