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參數(shù)資料
| 型號(hào)： | AS2940 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1A Low Dropout Voltage Regulators |
| 中文描述： | 1A低壓降穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 132K |
| 代理商： | AS2940 |
Rev. 10/11/00
AS2940
1A Low Dropout Voltage Regulators
(
PRELIMINARY INFORMATION
)
FEATURES
Output Current 1A
Internal Short Circuit Current Limit
Dropout Voltage 0.5V at 1A Output
Extremely Tight Load and Line Regulation
Very Low Temperature Coefficient
Mirror Image Insertion protection
Unregulated DC Input Can Withstand -20V Reverse Battery
and +60V Positive Transients
Direct Replacement For LM2940 Socket
PRODUCT DESCRIPTION
The AS2940 is a low powered positive voltage regulator. The AS2940 offers 1A output current with dropout voltage of only 0.5V and
over temperature dropout is up to 1V. The quiescent current is 30mA at differential output of 5V and output current of 1A. The
higher quiescent current can be exist when the device is in dropout mode (V
IN
– V
OUT
< 3V).
Other key additional features of this device includes higher output current, positive transient protection up to 60V (load dump), and
ability to survive an unregulated input voltage transient of -20V below ground (reverse battery). The regulator will automatically shut
down to protect both the internal circuits and the load. This device also features short circuit and thermal overload protection.
The AS2940 is offered in a 3-pin TO-220 and TO-263 package compatible with other 5V regulators. This device offers a variety of
output voltages: 3.3V, 5V and 12V. AS2940 is direct replacement to LM2940.
ORDERING INFORMATION
TO-263
3-PIN
3-PIN
Range
AS2940T-X
AS2940U-X
-40
°
C to +125
°
C
X= Output Voltage (X = 3.3V, 5.0V)
Consult factory for other fixed voltages.
PIN CONNECTIONS
1
2
3
APPLICATIONS
Battery powered Systems
Cordless Telephones
Automotive Electronics
Portable / Palm Top / Notebook Computers
Portable Consumer Equipment
Portable Instrumentation
SMPS Post-Regulator
Voltage Reference
TO-220
Oper. Temp.
Top View
TO-263-3 (T)
1
AS2940
2
3
Front View
TO-220-3 (U)
AS2940
V
IN
GND V
OUT
V
IN
GND V
OUT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS2940T-X | 1A Low Dropout Voltage Regulators |
| AS2940U-X | 1A Low Dropout Voltage Regulators |
| AS2954AS-3.3 | Analog IC |
| AS2954AS-5.0 | Analog IC |
| AS2954AT | Positive Adjustable Voltage Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS2940T-X | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:1A Low Dropout Voltage Regulators |
| AS2940U-5.0 | 制造商:Alpha & Omega Semiconductor 功能描述: |
| AS2940U-X | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:1A Low Dropout Voltage Regulators |
| AS2945B | 制造商:Alpha & Omega Semiconductor 功能描述: |
| AS2945BP-2.5 | 制造商:Alpha & Omega Semiconductor 功能描述: |
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