參數(shù)資料
型號: LP8345ILDX-ADJ
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 基準電壓源/電流源
英文描述: Low Dropout, Low IQ, 500mA CMOS Linear Regulator
中文描述: ADJUSTABLE POSITIVE LDO REGULATOR, 0.5 V DROPOUT, DSO6
封裝: LLP-6
文件頁數(shù): 1/13頁
文件大?。?/td> 283K
代理商: LP8345ILDX-ADJ
LP8345
Low Dropout, Low IQ, 500mA CMOS Linear Regulator
General Description
The LP8345 low-dropout CMOS linear regulator are avail-
able in 5V, 3.3V, 2.5V, 1.8V or adjustable output versions.
Packaged in our 6ld LLP package and 3ld DPAK they can
deliver up to 500mA output current.
Typical dropout voltage
@
500mA is 210mV for the 5.0V
version, 270mV for the 3.3V version and 335mV for the 2.5V
version.
The devices include a zener trimmed bandgap voltage ref-
erence, foldback current limiting and thermal overload limit-
ing.
The LP8345 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
210mV Typical Dropout
@
500mA (V
O
= 5V)
n
Wide Operating Range
n
Internal 500mA 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
— LP8345C
— LP8345I
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
20064801
Adjustable V
OUT
20064802
October 2003
L
2003 National Semiconductor Corporation
DS200648
www.national.com
相關(guān)PDF資料
PDF描述
LP8345CLD-2.5 Low Dropout, Low IQ, 500mA CMOS Linear Regulator
LP8345CDTX-3.3 Low Dropout, Low IQ, 500mA CMOS Linear Regulator
LP8345CLDX-1.8 Low Dropout, Low IQ, 500mA CMOS Linear Regulator
LP8345CLDX-2.5 Low Dropout, Low IQ, 500mA CMOS Linear Regulator
LP8345CDT-1.8 Low Dropout, Low IQ, 500mA CMOS Linear Regulator
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