參數(shù)資料
型號(hào)： LP2951ACDR2
英文描述： VOLT REGULATOR|FIXED/ADJUSTABLE|+5V/+1.24 TO +29V|BIPOLAR|SOP|8PIN|PLASTIC
中文描述： 電壓調(diào)節(jié)器|固定/可調(diào)| 5V的/ 1.24 29V |雙極|專(zhuān)科| 8引腳|塑料
文件頁(yè)數(shù)： 1/21頁(yè)
文件大?。?/td> 640K
代理商： LP2951ACDR2
LP2950/LP2951
Series of Adjustable Micropower Voltage Regulators
General Description
The LP2950 and LP2951 are micropower voltage regulators
with very low quiescent current (75 μA typ.) and very low
dropout voltage (typ. 40 mV at light loads and 380 mV at
100 mA). They are ideally suited for use in battery-powered
systems. Furthermore, the quiescent current of the LP2950/
LP2951 increases only slightly in dropout, prolonging battery
life.
The LP2950-5.0 in the popular 3-pin TO-92 package is
pin-compatible with older 5V regulators. The 8-lead LP2951
is available in plastic, ceramic dual-in-line, or metal can
packages and offers additional system functions.
One such feature is an error flag output which warns of a low
output voltage, often due to falling batteries on the input. It
may be used for a power-on reset. A second feature is the
logic-compatible shutdown input which enables the regulator
to be switched on and off.Also, the part may be pin-strapped
for a 5V, 3V, or 3.3V output (depending on the version), or
programmed from 1.24V to 29V with an external pair of re-
sistors.
Careful design of the LP2950/LP2951 has minimized all con-
tributions to the error budget. This includes a tight initial tol-
erance (.5% typ.), extremely good load and line regulation
(.05% typ.) and a very low output voltage temperature coef-
ficient, making the part useful as a low-power voltage refer-
ence.
Features
n
5V, 3V, and 3.3V versions available
n
High accuracy output voltage
n
Guaranteed 100 mA output current
n
Extremely low quiescent current
n
Low dropout voltage
n
Extremely tight load and line regulation
n
Very low temperature coefficient
n
Use as Regulator or Reference
n
Needs minimum capacitance for stability
n
Current and Thermal Limiting
n
Stable with low-ESR output capacitors
LP2951 versions only
n
Error flag warns of output dropout
n
Logic-controlled electronic shutdown
n
Output programmable from 1.24 to 29V
Block Diagram and Typical Applications
LP2950
DS008546-25
LP2951
DS008546-1
May 1999
L
1999 National Semiconductor Corporation
DS008546
www.national.com
相關(guān)PDF資料
PDF描述
LP2951ACM.TR Analog IC
LP2951CD-5 Fixed & Adjustable Voltage Regulator
LP2951CDM-3.0R2 VOLT REGULATOR|FIXED/ADJUSTABLE|+1.24 TO +29V|BIPOLAR|TSSOP|8PIN|PLASTIC
LP2951CDM-3.3R2 VOLT REGULATOR|FIXED/ADJUSTABLE|+3.3/+1.24 TO 29V|BIPOLAR|TSSOP|8PIN|PLASTIC
LP2951CDM-5.0R2 Fixed & Adjustable Voltage Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP2951ACDR2G 功能描述:低壓差穩(wěn)壓器 - LDO 5V 100mA Low Power w/Error Flag Output 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(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP2951ACJ 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Series of Adjustable Micropower Voltage Regulators
LP2951ACM 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(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP2951ACM 制造商:Texas Instruments 功能描述:V REG LDO ADJ +1.24/29V SMD 2951
LP2951ACM 制造商:Texas Instruments 功能描述:IC, ADJ LDO REG 1.24V TO 29V 0.1A 8-SOIC
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