參數(shù)資料
型號(hào)： LP38691DTX-5.0
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
中文描述： 5 V FIXED POSITIVE LDO REGULATOR, 0.45 V DROPOUT, PSSO2
封裝： TO-252, 3 PIN
文件頁(yè)數(shù)： 1/15頁(yè)
文件大?。?/td> 793K
代理商： LP38691DTX-5.0
LP38691/LP38693
500mA Low Dropout CMOS Linear Regulators
Stable with Ceramic Output Capacitors
General Description
The LP38691/3 low dropout CMOS linear regulators provide
tight output tolerance (2.0% typical), extremely low dropout
voltage (250 mV
@
500mA load current, V
OUT
= 5V), and
excellent AC performance utilizing ultra low ESR ceramic
output capacitors.
The low thermal resistance of the LLP, SOT-223 and T0-252
packages allow the full operating current to be used even in
high ambient temperature environments.
The use of a PMOS power transistor means that no DC base
drive current is required to bias it allowing ground pin current
to remain below 100 μA regardless of load current, input
voltage, or operating temperature.
Dropout Voltage:
250 mV (typ)
@
500mA (typ. 5V out).
Ground Pin Current:
55 μA (typ) at full load.
Precision Output Voltage:
2.0% (25C) accuracy.
Features
n
2.0% output accuracy (25C)
n
Low dropout voltage: 250 mV
@
500mA (typ, 5V out)
n
Wide input voltage range (2.7V to 10V)
n
Precision (trimmed) bandgap reference
n
Guaranteed specs for -40C to +125C
n
1μA off-state quiescent current
n
Thermal overload protection
n
Foldback current limiting
n
T0-252, SOT-223 and 6-Lead LLP packages
n
Enable pin (LP38693)
Applications
n
Hard Disk Drives
n
Notebook Computers
n
Battery Powered Devices
n
Portable Instrumentation
Typical Application Circuits
20126501
20126502
Note:
* Minimum value required for stability.
**LLP package devices only.
PRELIMINARY
January 2005
L
S
2005 National Semiconductor Corporation
DS201265
www.national.com
相關(guān)PDF資料
PDF描述
LP38691SDX-5.0 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691SDX-ADJ 500mA Low Dropout CMOS Linear Regulators with Adjustable Output / Stable with Ceramic Output Capacitors
LP38691SD-1.8 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691SD-2.5 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691SD-3.3 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP38691QSD-1.8 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691QSD-1.8/NOPB 功能描述:低壓差穩(wěn)壓器 - LDO 500mA Low Dropout CMOS Linear Reg 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
LP38691QSD-2.5 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
LP38691QSD-2.5/NOPB 功能描述:低壓差穩(wěn)壓器 - LDO 500mA Low Dropout CMOS Linear Reg 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
LP38691QSD-3.3 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors
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