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參數資料
| 型號： | LD2982AXX30 |
| 廠商： | 意法半導體 |
| 英文描述： | VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION |
| 中文描述： | 很好低壓差，低噪聲電壓調壓閥與禁止功能 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 296K |
| 代理商： | LD2982AXX30 |
1/13
July 2003
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VERY LOW DROPOUT VOLTAGE (120mV
AT 50mA AND 7mV AT 1mA LOAD)
VERY LOW QUIESCENT CURRENT (375
μ
A
TYP. AT 50mA LOAD AND 75
μ
A AT 1mA)
OUTPUT CURRENT UP TO 50mA
LOGIC CONTROLLED ELECTRONIC
SHUTDOWN
OUTPUT VOLTAGE OF 1.5,1.8, 2.5, 2.8, 2.85,
3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.7, 5V
INTERNAL CURRENT AND THERMAL LIMIT
AVAILABLE IN
±
1% TOLLERANCE (AT 25°C,
A VERSION)
SUPPLY VOLTAGE REJECTION: 45dB (TYP)
ONLY 1μF FOR STABILITY
LOW OUTPUT NOISE VOLTAGE 30μVrms
SMALLEST PACKAGE SOT23-5L
TEMPERATURE RANGE: -40°C TO 125°C
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DESCRIPTION
The LD2982 is a 50mA fixed output voltage
regulator. The ultra low drop voltage and the low
quiescent current make them particularly suitable
for low noise, low power applications, and in
battery
powered
systems.
quiescent current is less than 1μA when INHIBIT
In
sleep
mode
pin is pulled low. Shutdown Logic Control Function
is available on pin 3 (TTL compatible). This means
that when the device is used as local regulator, it
is possible to put a part of the board in standby,
decreasing the total power consumption.
An external capacitor C
BYP
=10nF connected
between bypass pin and GND
to 30μVrms.
Typical application are in cellular phone, palmtop/
laptop computer, personal digital assistant (PDA),
personal stereo, camcorder and camera.
reduce the noise
LD2982
SERIES
VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR
WITH INHIBIT FUNCTION, LOW ESR CAP. COMPATIBLE
SCHEMATIC DIAGRAM
SOT23-5L
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LD2982AXX31 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION |
| LD2982AXX32 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION |
| LD2982AXX33 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION |
| LD2982AXX35 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION |
| LD2982AXX36 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERY LOW DROP AND LOW NOISE VOLTAGE REGULATO WITH INHIBIT FUNCTION |
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