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參數(shù)資料
| 型號(hào)： | LP3856ES-3.3 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3A Fast Response Ultra Low Dropout Linear Regulators |
| 中文描述： | 3.3 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PSSO5 |
| 封裝： | TO-263, 5 PIN |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大?。?/td> | 417K |
| 代理商： | LP3856ES-3.3 |
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LP3853/LP3856
3A Fast Response Ultra Low Dropout Linear Regulators
General Description
The LP3853/LP3856 series of fast ultra low-dropout linear
regulators operate from a +2.5V to +7.0V input supply. Wide
range of preset output voltage options are available. These
ultra low dropout linear regulators respond very quickly to
step changes in load, which makes them suitable for low
voltage microprocessor applications. The LP3853/LP3856
are developed on a CMOS process which allows low quies-
cent current operation independent of output load current.
This CMOS process also allows the LP3853/LP3856 to op-
erate under extremely low dropout conditions.
Dropout Voltage:
Ultra low dropout voltage; typically 39mV
at 300mA load current and 390mV at 3A load current.
Ground Pin Current:
Typically 4mA at 3A load current.
Shutdown Mode:
Typically 10nA quiescent current when
the shutdown pin is pulled low.
Error Flag:
Error flag goes low when the output voltage
drops 10% below nominal value.
SENSE:
Sense pin improves regulation at remote loads.
Precision Output Voltage:
Multiple output voltage options
are available ranging from 1.8V to 5.0V with a guaranteed
accuracy of
±
1.5% at room temperature, and
±
3.0% over all
conditions (varying line, load, and temperature).
Features
n
Ultra low dropout voltage
n
Stable with selected ceramic capacitors
n
Low ground pin current
n
Load regulation of 0.08%
n
10nA quiescent current in shutdown mode
n
Guaranteed output current of 3A DC
n
Available in TO-263 and TO-220 packages
n
Output voltage accuracy
±
1.5%
n
Error flag indicates output status
n
Sense option improves load regulation
n
Overtemperature/overcurrent protection
n
40C to +125C junction temperature range
Applications
n
Microprocessor power supplies
n
Stable with ceramic output capacitors
n
GTL, GTL+, BTL, and SSTL bus terminators
n
Power supplies for DSPs
n
SCSI terminator
n
Post regulators
n
High efficiency linear regulators
n
Battery chargers
n
Other battery powered applications
Typical Application Circuits
20030901
**SD and ERROR pins must be pulled high through a 10k
pull-up resistor. Connect the ERROR pin to ground if this function is not used. See Application Hints
for more information.
March 2004
L
2004 National Semiconductor Corporation
DS200309
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP3856ES-2.5 | 3A Fast Response Ultra Low Dropout Linear Regulators |
| LP3856ES-1.8 | 3A Fast Response Ultra Low Dropout Linear Regulators |
| LP3856ESX-5.0 | 3A Fast Response Ultra Low Dropout Linear Regulators |
| LP3856ESX-3.3 | 3A Fast Response Ultra Low Dropout Linear Regulators |
| LP3856ESX-2.5 | 3A Fast Response Ultra Low Dropout Linear Regulators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3856ES-5.0 | 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 |
| LP3856ES-5.0/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(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3856ES-ADJ | 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 |
| LP3856ES-ADJ/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 3A Low Dropout 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 |
| LP3856ESX-1.8 | 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 |
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