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參數(shù)資料
| 型號： | LP8340 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Low Dropout, Low IQ, 1.0A CMOS Linear Regulator |
| 中文描述： | 低壓差，低IQ，1.0安培的CMOS線性穩(wěn)壓器 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 304K |
| 代理商： | LP8340 |
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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| LP8340C | Low Dropout, Low IQ, 1.0A CMOS Linear Regulator |
| LP8345IDT-1.8 | Low Dropout, Low IQ, 500mA CMOS Linear Regulator |
| LP8345IDT-2.5 | GT 7C 7#16S SKT RECP WALL |
| LP8345IDT-3.3 | Low Dropout, Low IQ, 500mA CMOS Linear Regulator |
| LP8345IDT-5.0 | Low Dropout, Low IQ, 500mA CMOS Linear Regulator |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LP8340A-2.5 E WAF | 制造商:Texas Instruments 功能描述: |
| LP8340A-3.3 E WAF | 制造商:Texas Instruments 功能描述: |
| LP8340A-5.0 E WAF | 制造商:Texas Instruments 功能描述: |
| LP8340C | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low Dropout, Low IQ, 1.0A CMOS Linear Regulator |
| LP8340CDT-1.8 | 制造商:Texas Instruments 功能描述:V REG LDO 1A 1.8V 8340 TO-252-3 |
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