參數(shù)資料
型號(hào)： LP2951CM-3.3
廠商： Semtech Corporation
英文描述： 150mA ADJUSTABLE VOLTAGE REGULATOR
中文描述： 150mA的可調(diào)電壓調(diào)節(jié)器
文件頁(yè)數(shù)： 1/3頁(yè)
文件大?。?/td> 67K
代理商： LP2951CM-3.3
LP2951
1998 SEMTECH CORP.
150mA ADJUSTABLE
VOLTAGE REGULATOR
March 17, 1998
652 MITCHELL ROAD NEWBURY PARK CA 91320
1
DESCRIPTION
The LP2951 series of low power voltage regulators
have low quiescent current and low dropout voltage.
The quiescent current increases minimally during
dropout conditions thereby extending battery life.
Available in the 8 lead SOIC package, the LP2951 se-
ries includes features such as shutdown and low out-
put voltage detect (typically due to low battery condi-
tions). This function may also be used as a power on
reset function when triggered by CMOS or TTL inputs.
The circuit can be used as a fixed voltage 5 volt (3.3
volt for LP2951CM-3.3) regulator or adjusted between
1.24 volts and 29 volts using external resistor pairs.
FEATURES
= Guaranteed 150mA current
= Adjustable output voltage - 1.24V to 29V
= Accurate 5V or 3.3V output @ 100mA
= Low dropout voltage - 350-400mV @ 100mA
= Regulator or reference functions
= Direct replacement for LP2951C, MIC2951-03,
AS2951C
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
PIN CONFIGURATION
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Maximum
Units
Supply Voltage
V
IN
-0.3 to 30
V
Shutdown Input
Voltage
-0.3 to 30
V
Error Comp. Output
Voltage
-0.3 to 30
V
Power Dissipation
P
D
Internally
Limited
W
Thermal Resistance
Junction to Ambient
θ
JA
175
°C/W
Operating Junction
Temperature Range
T
J
-40 to 125
°C
Storage
Temperature Range
T
STG
-65 to 150
°C
Lead Temperature
(Soldering) 5 Sec
T
LEAD
260
°C
APPLICATIONS
= Microcontroller supplies
= Linear regulators
= Adjustable Supplies
= Switching power supplies - post-regulation
= Portable modems
= Battery powered systems
= Cellular telephones
= Voltage references
Notes:
(1) Where -X.X denotes voltage options. Available
voltages are: 3.3V (-3.3) and 5V (leave blank).
(2) Add suffix ‘TR’ for tape and reel.
ORDERING INFORMATION
DEVICE
(1)(2)
OUTPUT
PACKAGE
LP2951CM-X.X
ADJ
SO-8
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP2951CM-5 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:150mA ADJUSTABLE VOLTAGE REGULATOR
LP2951CMC 制造商:NAT SEMI 功能描述: 制造商:National Semiconductor Corporation 功能描述:
LP2951CMM 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
LP2951CMM/HALF 制造商:Texas Instruments 功能描述:
LP2951CMM/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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