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參數(shù)資料
| 型號(hào)： | 2931AM |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護(hù) |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 361K |
| 代理商： | 2931AM |
LM2931
Series Low Dropout Regulators
General Description
The LM2931 positive voltage regulator features a very low
quiescent current of 1mA or less when supplying 10mA
loads. This unique characteristic and the extremely low
input-output differential required for proper regulation (0.2V
for output currents of 10mA) make the LM2931 the ideal
regulator for standby power systems. Applications include
memory standby circuits, CMOS and other low power pro-
cessor power supplies as well as systems demanding as
much as 100mA of output current.
Designed originally for automotive applications, the LM2931
and all regulated circuitry are protected from reverse battery
installations or 2 battery jumps. During line transients, such
as a load dump (60V) when the input voltage to the regulator
can momentarily exceed the specified maximum operating
voltage, the regulator will automatically shut down to protect
both internal circuits and the load. The LM2931 cannot be
harmed by temporary mirror-image insertion. Familiar regu-
lator features such as short circuit and thermal overload pro-
tection are also provided.
The LM2931 family includes a fixed 5V output (
±
3.8% toler-
ance for A grade) or an adjustable output with ON/OFF pin.
Both versions are available in a TO-220 power package,
TO-263 surface mount package, and an 8-lead surface
mount package. The fixed output version is also available in
the TO-92 plastic and 6-Bump micro SMD packages.
Features
n
Very low quiescent current
n
Output current in excess of 100 mA
n
Input-output differential less than 0.6V
n
Reverse battery protection
n
60V load dump protection
n
50V reverse transient protection
n
Short circuit protection
n
Internal thermal overload protection
n
Mirror-image insertion protection
n
Available in TO-220, TO-92, TO-263, SO-8 or 6-Bump
micro SMD packages
n
Available as adjustable with TTL compatible switch
n
See AN-1112 for micro SMD considerations
Connection Diagrams
FIXED VOLTAGE OUTPUT
TO-220 3-Lead Power Package
DS005254-6
Front View
TO-263 Surface-Mount Package
DS005254-11
Top View
DS005254-12
Side View
8-Pin Surface Mount
DS005254-7
*NC = Not internally connected. Must be electrically isolated from the rest
of the circuit for the micro SMD package.
Top View
TO-92 Plastic Package
DS005254-8
Bottom View
March 2000
L
2000 National Semiconductor Corporation
DS005254
www.national.com
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| 2936-120 | 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 2931AM-5.0 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Series Low Dropout Regulators |
| 2931AZ-5.0 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| 2931C | 制造商:Motorola Inc 功能描述: |
| 293-1K | 功能描述:碳膜電阻器 - 透孔 1Kohms 5% RoHS:否 制造商:KOA Speer 電阻:100 Ohms 容差:5 % 功率額定值:2 W 電壓額定值: 溫度系數(shù):350 PPM / C 系列: 尺寸:4.2 mm Dia. x 12 mm L 工作溫度范圍:- 55 C to + 200 C 封裝:Reel |
| 293-1K/REEL | 功能描述:碳膜電阻器 - 透孔 1Kohms 5% RoHS:否 制造商:KOA Speer 電阻:100 Ohms 容差:5 % 功率額定值:2 W 電壓額定值: 溫度系數(shù):350 PPM / C 系列: 尺寸:4.2 mm Dia. x 12 mm L 工作溫度范圍:- 55 C to + 200 C 封裝:Reel |
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