音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

LM2990WG5.0-QML Datasheet

  • LM2990WG5.0-QML

  • Negative Low Dropout Regulator

  • 12頁

  • NSC

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

LM2990 Negative Low Dropout Regulator
June 1999
LM2990
Negative Low Dropout Regulator
General Description
The LM2990 is a three-terminal, low dropout, 1 ampere
negative voltage regulator available with fixed output volt-
ages of 鈭?, 鈭?.2, 鈭?2, and 鈭?5V.
The LM2990 uses new circuit design techniques to provide
low dropout and low quiescent current. The dropout voltage
at 1A load current is typically 0.6V and a guaranteed
worst-case maximum of 1V over the entire operating tem-
perature range. The quiescent current is typically 1 mA with
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 (V
OUT
鈭?V
IN
鈮?/div>
3V).
Output voltage accuracy is guaranteed to
鹵
5% over load,
and temperature extremes.
The LM2990 is short-circuit proof, and thermal shutdown in-
cludes hysteresis to enhance the reliability of the device
when overloaded for an extended period of time. The
LM2990 is available in a 3-lead TO-220 package and is rated
for operation over the automotive temperature range of
鈭?0藲C to +125藲C.
Features
n
n
n
n
n
n
n
5% output accuracy over entire operating range
Output current in excess of 1A
Dropout voltage typically 0.6V at 1A load
Low quiescent current
Internal short circuit current limit
Internal thermal shutdown with hysteresis
Functional complement to the LM2940 series
Applications
n
Post switcher regulator
n
Local, on-card, regulation
n
Battery operated equipment
Typical Application
DS010801-1
*Required if the regulator is located further than 6 inches from the power supply filter capacitors. A 1 碌F solid tantalum or a 10 碌F aluminum electrolytic
capacitor is recommended.
*
*
Required for stability. Must be at least a 10 碌F aluminum electrolytic or a 1 碌F solid tantalum to maintain stability. May be increased without bound to
maintain regulation during transients. Locate the capacitor as close as possible to the regulator. The equivalent series resistance (ESR) is critical, and
should be less than 10鈩?over the same operating temperature range as the regulator.
Ordering Information and Connection Diagrams
Temperature
Range
鈭?0藲C to
+125藲C
鈭?5藲C to
+125藲C
Output Voltage
-5.0
LM2990T-5.0
LM2990S-5.0
LM2990J-5.0-QML
5962-9571101QEA
LM2990WG5.0-QML
5962-9571101QXA
-5.2
LM2990T-5.2
-12
LM2990T-12
LM2990S-12
LM2990J-12-QML
5962-9571001QEA
-15
LM2990T-15
LM2990S-15
LM2990J-15-QML
5962-9570901QEA
TO-220
TO-263
J16A
WG16A
Package
漏 1999 National Semiconductor Corporation
DS010801
www.national.com

LM2990WG5.0-QML相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    Philips Semiconductors [Low power dual operational amplifi]
    PHILIPS
  • 英文版
    Seoul Semiconductor [RED OVAL LAMP LED]
    SEOUL
  • 英文版
    Low Power Low Offset Voltage Dual Comparators
    NSC
  • 英文版
    Low power dual voltage comparator
    Philips
  • 英文版
    DUAL DIFFERENTIAL COMPARATORS
  • 英文版
    SINGLE SUPPLY, LOW POWER DUAL COMPARATORS
  • 英文版
    Low Power Low Offset Voltage Dual Comparators
  • 英文版
    LOWPOWER DUAL VOLTAGE COMPARATORS
    STMicro
  • 英文版
    Precision Reference
  • 英文版
    QUAD SINGLE SUPPLY OPERATIONAL AMPLIFIERS
    MOTOROLA
  • 英文版
    LM2900/LM3900/LM3301 Quad Amplifiers
    NSC
  • 英文版
    QUADRUPLE NORTON OPERATIONAL AMPLIFIERS
    TI
  • 英文版
    QUADRUPLE NORTON OPERATIONAL AMPLIFIERS
  • 英文版
    Quad Amplifiers
  • 英文版
    LOW POWER QUAD VOLTAGE COMPARATORS
    STMICROELECTRONICS
  • 英文版
    Low Power Low Offset Voltage Quad Comparators
    NSC
  • 英文版
    QUAD DIFFERENTIAL COMPARATORS
    TI
  • 英文版
    Quad voltage comparator
    Philips
  • 英文版
    Quad Comparator
  • 英文版
    QUAD DIFFERENTIAL COMPARATORS

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！