參數(shù)資料
型號: LP2992AIM5X-3.0
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 基準電壓源/電流源
英文描述: Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors
中文描述: 3 V FIXED POSITIVE LDO REGULATOR, 0.85 V DROPOUT, PDSO5
封裝: SOT-23, 5 PIN
文件頁數(shù): 1/15頁
文件大小: 598K
代理商: LP2992AIM5X-3.0
LP2992
Micropower 250 mA Low-Noise Ultra Low-Dropout
Regulator in SOT-23 and LLP Packages
Designed for Use with Very Low ESR Output Capacitors
General Description
The LP2992 is a 250 mA, fixed-output voltage regulator
designed to provide ultra low-dropout and low noise in bat-
tery powered applications.
Using an optimized VIP
(Vertically Integrated PNP) pro-
cess, the LP2992 delivers unequalled performance in all
specifications critical to battery-powered designs:
Dropout Voltage:
Typically 450 mV
@
250 mA load, and
5 mV
@
1 mA load.
Ground Pin Current:
Typically 1500 μA
@
250 mA load, and
75 μA
@
1 mA load.
Enhanced Stability:
The LP2992 is stable with output ca-
pacitor ESR as low as 5 m
, which allows the use of ceramic
capacitors on the output.
Sleep Mode:
Less than 1 μA quiescent current when
ON/OFF pin is pulled low.
Smallest Possible Size:
SOT-23 and LLP packages use
absolute minimum board space.
Precision Output:
1% tolerance output voltages available
(A grade).
Low Noise:
By adding a 10 nF bypass capacitor, output
noise can be reduced to 30 μV (typical).
Multiple voltage options, from 1.5V to 5.0V, are available as
standard products. Consult factory for custom voltages.
Features
n
Ultra low dropout voltage
n
Guaranteed 250 mA output current
n
Smallest possible size (SOT-23, LLP package)
n
Requires minimum external components
n
Stable with low-ESR output capacitor
n
<
1 μA quiescent current when shut down
n
Low ground pin current at all loads
n
Output voltage accuracy 1% (A Grade)
n
High peak current capability
n
Wide supply voltage range (16V max)
n
Low Z
OUT
: 0.3
typical (10 Hz to 1 MHz)
n
Overtemperature/overcurrent protection
n
40C to +125C junction temperature range
n
Custom voltages available
Applications
n
Cellular Phone
n
Palmtop/Laptop Computer
n
Personal Digital Assistant (PDA)
n
Camcorder, Personal Stereo, Camera
Block Diagram
20029401
VIP
is a trademark of National Semiconductor Corporation.
June 2002
L
P
2002 National Semiconductor Corporation
DS200294
www.national.com
相關PDF資料
PDF描述
LP2992IM5X-3.0 Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors
LP2992AIM5X-1.8 Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors
LP2992AIM5X-1.5 Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors
LP2992IM5X-3.3 Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors
LP2992 Hex Inverters 14-SOIC -40 to 85
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