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參數(shù)資料
| 型號： | RM2991JXQMLV |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 可調(diào)負電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 3 V-24 V ADJUSTABLE NEGATIVE LDO REGULATOR, 1 V DROPOUT, CDIP16 |
| 封裝： | CERAMIC, DIP-16 |
| 文件頁數(shù)： | 6/15頁 |
| 文件大小： | 398K |
| 代理商： | RM2991JXQMLV |
National P/N LM2991 - Negative Low Dropout Adjustable Regulator
LM2991T
TO 220
5
Full
production
N/A
1K+
$1.2500
rail
of
45
[logo]UZ2T
LM2991T
P+
LM2991S
5
Full
production
N/A
1K+
$1.2900
rail
of
45
[logo]UZ2T
LM2991S
P+
LM2991SX
5
Full
production
N/A
1K+
$1.2900
reel
of
500
[logo]UZ2T
LM2991S
P+
5962-
9650501QEA
16 MSL
Full
production
N/A
25+ $11.7000
rail
of
25
[logo]ZS4A$E
LM2991J-QML
5962-9650501QEA
5962-
9650501QXA
Ceramic
SOIC
16 MSL
Full
production
N/A
250+ $14.9000
tray
of
42
[logo]ZS4A$E
LM2991WG-
QML 5962-
9650501QXA
LM2991J-QMLV
16 MSL Preliminary
N/A
rail
of
N/A
[logo]ZS4A$E
LM2991J-QMLV
5962-9650501VEA
RM2991JXQMLV CERDIP
16 MSL Preliminary
N/A
rail
of
N/A
[logo]ZS4A$E
RM2991JXQMLV
LM2991 MD8
Full
production
N/A
N/A Samples
tray
of
N/A
-
LM2991 MDS
Full
production
N/A
tray
of
N/A
-
LM2991 MW8
Full
production
N/A
wafer
jar
of
N/A
-
General Description
The LM2991 is a low dropout adjustable negative regulator with a output voltage range between -3V to -24V.
The LM2991 provides up to 1A of load current and features a On# /Off pin for remote shutdown capability.
The LM2991 uses new circuit design techniques to provide a low dropout voltage, low quiescent current and
low temperature coefficient precision reference. The dropout voltage at 1A load current is typically 0.6V and
a guaranteed worst-case maximum of 1V over the entire operating temperature range. The quiescent current
is typically 1 mA with a 1A load current and an input-output voltage differential greater than 3V. A unique
circuit design of the internal bias supply limits the quiescent current to only 9 mA (typical) when the
regulator is in the dropout mode (VOUT - VIN < 3V).
The LM2991 is short-circuit proof, and thermal shutdown includes hysteresis to enhance the reliability of the
device when inadvertently overloaded for extended periods. The LM2991 is available in 5-lead TO-220 and
TO-263 packages and is rated for operation over the automotive temperature range of -40°C to +125°C. Mil-
Aero versions are also available.
Features
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM2991.html (2 of 3) [Aug-09-2002 3:02:34 PM]
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