參數(shù)資料
型號(hào): LP8340ILDX-5.0
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Low Dropout, Low IQ, 1.0A CMOS Linear Regulator
中文描述: 5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, DSO6
封裝: LLP-6
文件頁(yè)數(shù): 1/14頁(yè)
文件大小: 304K
代理商: LP8340ILDX-5.0
LP8340
Low Dropout, Low I
Q
, 1.0A CMOS Linear Regulator
General Description
The LP8340 low-dropout CMOS linear regulator is available
in 5V, 3.3V, 2.5V, 1.8V and adjustable output versions. Pack-
aged in the 6ld LLP package and 3ld DPAK. The LP8340 can
deliver up to 1.0A output current.
Typical dropout voltage is 420mV at 1.0A for the 5.0V ver-
sion, 540mV at 1.0A for the 3.3V version, 670mV at 1.0A for
the 2.5V version and 680mV at 800mA for the 1.8V version.
The LP8340 includes a zener trimmed bandgap voltage
reference, foldback current limiting and thermal overload
limiting.
The LP8340 features a PMOS output transistor which unlike
PNP type low dropout regulators requires no base drive
current. This allows the device ground current to remain less
than 50μA over operating temperature, supply voltage and
irrespective of the load current.
Features
n
±
1.5% Typical V
OUT
tolerance
n
420mV Typical Dropout
@
1.0A (V
O
= 5V)
n
Wide Operating Range
n
Internal 1.0A PMOS Output Transistor
n
19μA Typical Quiescent Current
n
Thermal Overload Limiting
n
Foldback Current Limiting
n
Zener Trimmed Bandgap Reference
n
Space saving LLP package
n
Temperature Range
— LP8340C
— LP8340I
2.7V to 10V
0C to 125C
40C to 125C
Applications
n
Hard Disk Drives
n
Notebook Computers
n
Battery Powered Electronics
n
Portable Instrumentation
Typical Applications
Fixed V
OUT
20060901
Adjustable V
OUT
20060902
October 2003
L
Q
,
2003 National Semiconductor Corporation
DS200609
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
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LP8340ILDX-ADJ 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP8340ILDX-ADJ/NOPB 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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