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參數資料
型號: CM3019-33
廠商: California Micro Devices Corporation
元件分類: 基準電壓源/電流源
英文描述: Micropower, 500mA Low Noise CMOS LDO Regulator
中文描述: 微功耗,低噪聲500mA的LDO穩壓器的CMOS
文件頁數: 1/8頁
文件大小: 178K
代理商: CM3019-33
CALIFORNIA MICRO DEVICES
Micropower, 500mA Low Noise CMOS LDO Regulator
Preliminary
CM3019
2004 California Micro Devices Corp. All rights reserved
02/20/04
430 N. McCarthy Blvd, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
1
Features
500mA output current capability
500mA peak in SOT-23 package
500mA continuous in MSOP package
500mV maximum dropout voltage at full load
Excellent line and load regulation
Stable with any output capacitor
Ultra low noise with optional bypass capacitor
Fast power-up with bypass capacitor
“Zero” current in Shutdown mode
Thermal Overload Protection
Foldback Current Limiting Protection
Reverse current protection
Applications
Notebook, and palmtop computers
Cell phones and battery powered devices
Consumer and personal electronics
PC Card Vcc and Vpp regulation and switching
Table 1: CM3019 Regulator Family
Product
CM3019-00
CM3019-12
CM3019-15
CM3019-18
CM3019-25
CM3019-28
CM3019-30
CM3019-33
For other output voltages, please contact the factory
Output Voltage
Adjustable
1.2V
1.5V
1.8V
2.5V
2.8V
3.0V
3.3V
Product Description
The CM3019 is a CMOS linear voltage regulator with low
quiescent current, very low drop out voltage and better
than 1% initial output voltage accuracy.
The quiescent current is typically 150μA at light loads and
only 165μA at 500mA. This is 5% more efficient than
equivalent Bi-CMOS devices that can waste up to 25mA at
500mA.
Load regulation is maintained for peak currents up to
500mA. This is useful for supplying inrush currents during
power-up and transient conditions. Continuous output
current is limited by package type and board layout.
A dedicated control input (EN, Active High) has been
included for 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.
The device also features reverse current protection. This
protects the device by blocking the pass transistors
parasitic diode when the output voltage is forced higher
than the input.
For low noise performance and increased power supply
ripple rejection a noise bypass capacitor can be connected
to the BYP pin. Connecting this capacitor will not
significantly delay the speed of power-up.
The CM3019 is fully protected, offering both overload
current limiting and high temperature thermal shutdown.
To reduce board cost and layout size the CM3019 was
designed to be stable with or without any output capacitor.
This includes tiny, low ESR ceramic capacitors.
Housed in a low profile MSOP8 package, or a SOT23-
5/SOT23-6, the device is ideal for space critical
applications.
Typical Application Circuit
Block Diagram
相關PDF資料
PDF描述
CM3019-33MA Micropower, 500mA Low Noise CMOS LDO Regulator
CM3019-33ST Micropower, 500mA Low Noise CMOS LDO Regulator
CM3019 Micropower, 500mA Low Noise CMOS LDO Regulator
CM3019-18 Micropower, 500mA Low Noise CMOS LDO Regulator
CM3019-18MA Micropower, 500mA Low Noise CMOS LDO Regulator
相關代理商/技術參數
參數描述
CM3019-33MA 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Micropower, 500mA Low Noise CMOS LDO Regulator
CM3019-33ST 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:Micropower, 500mA Low Noise CMOS LDO Regulator
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CM3020-9 制造商:Power-One 功能描述:DC/DC PS TRIPLE-OUT 5.1V/12V 5A/0.7A 50W 11PIN - Bulk 制造商:Power-One 功能描述:M Series 50W Triple Output 5.1 / -12 / 12 V DC/DC Converter
CM3020-9G 功能描述:POWER SUPPLYDC-DC CONVERTERIND-R 制造商:bel power solutions 系列:Melcher M 零件狀態:在售 類型:封閉式,保形涂層 電壓 - 輸入(最小值):28V 電壓 - 輸入(最大值):140V 輸出數:3 電壓 - 輸出 1:5.1V 電壓 - 輸出 2:12V 電壓 - 輸出 3:12V 電壓 - 輸出 4:- 電流 - 輸出(最大值):5A,700mA,700mA 功率(W):42W 應用:ITE(商業),鐵路 工作溫度:-40°C ~ 71°C 效率:76% 安裝類型:底座安裝 大小/尺寸:6.63" 長 x 4.38" 寬 x 1.52" 高(168.5mm x 111.2mm x 38.7mm) 認可:cCSAus,CE 標準包裝:5
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