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參數(shù)資料
| 型號(hào)： | L4987CPT87 |
| 廠(chǎng)商： | 意法半導(dǎo)體 |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG |
| 中文描述： | 極低降穩(wěn)壓器與抑制和差型控制標(biāo)志 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大?。?/td> | 276K |
| 代理商： | L4987CPT87 |
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1/13
October 2003
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VERY LOW DROPOUT VOLTAGE
(0.25V TYP.)
DROPOUT CONTROL FLAG
VERY LOW QUIESCENT CURRENT
(TYP. 90 mA IN OFF MODE, 500mA IN ON
MODE)
OUTPUT CURRENT UP TO 200 mA
LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
OUTPUT VOLTAGES OF 3V, 3.3V, 5V, 8.7V,
12V
INTERNAL CURRENT AND THERMAL LIMIT
ONLY 2.2μF FOR STABILITY
AVAILABLE IN ± 2% SELECTION AT 25°C
SUPPLY VOLTAGE REJECTION: 70dB (TYP.)
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DESCRIPTION
The L4987 is a very low drop regulator available in
PPAK. The very low drop-voltage (0.5V Max at
200 mA) and the very low quiescent current make
it particularly suitable for low noise, low power
applications, and in battery powered systems. The
input dump protection up to 40V makes it ideal for
automotive
applications.
Control
function
is
compatible). This means that when the device is
used as a local regulator, it is possible to put a part
a
shutdown
Logic
TTL
available
(pin2,
of the board in standby, decreasing the total
power consumption. The regulator employs an
output pin (open collector) providing a logic signal
when the pass transistor is in saturation at low
input voltage, this signal can be used to prevent
the pop-up phenomenon in the car radio. In
battery powered systems (the cellular phone,
notebook) it is possible to use the flag to monitor
the battery charge status through the dropout of
the regulator.
L4987
SERIES
VERY LOW DROP VOLTAGE REGULATORS
WITH INHIBIT AND DROPOUT CONTROL FLAG
SCHEMATIC DIAGRAM
PPAK
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L4987CXX120 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:VERY LOW DROP VOLTAGE REGULATOS WITH INHIBIT AND DROPOUT CONTROL FLAG |
| L4987CXX30 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:VERY LOW DROP VOLTAGE REGULATOS WITH INHIBIT AND DROPOUT CONTROL FLAG |
| L4987CXX33 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:VERY LOW DROP VOLTAGE REGULATOS WITH INHIBIT AND DROPOUT CONTROL FLAG |
| L4987CXX50 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:VERY LOW DROP VOLTAGE REGULATOS WITH INHIBIT AND DROPOUT CONTROL FLAG |
| L4987CXX87 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:VERY LOW DROP VOLTAGE REGULATOS WITH INHIBIT AND DROPOUT CONTROL FLAG |
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