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參數(shù)資料
| 型號(hào)： | LP3986TL-2929 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Dual Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulators in micro SMD Package |
| 中文描述： | DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, PBGA8 |
| 封裝： | 0.600 MM HEIGHT, MICRO, BUMP, SMD-8 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大小： | 328K |
| 代理商： | LP3986TL-2929 |
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LP3986
Dual Micropower 150 mA Ultra Low-Dropout CMOS
Voltage Regulators in micro SMD Package
General Description
The LP3986 is a 150 mA dual low dropout regulator de-
signed for portable and wireless applications with demand-
ing performance and board space requirements.
The LP3986 is stable with a small 1 μF
±
30% ceramic output
capacitor requiring smallest possible board space.
The LP3986’s performance is optimized for battery powered
systems to deliver ultra low noise, extremely low dropout
voltage and low quiescent current independent of load cur-
rent. Regulator ground current increases very slightly in
dropout, further prolonging the battery life. Optional external
bypass capacitor reduces the output noise further without
slowing down the load transient response. Fast start-up time
is achieved by utilizing a speed-up circuit that actively pre-
charges the bypass capacitor. Power supply rejection is
better than 60 dB at low frequencies and 55 dB at 10 kHz.
High power supply rejection is maintained at low input volt-
age levels common to battery operated circuits.
The LP3986 is available in a micro SMD package. Perfor-
mance is specified for a 40C to +125C temperature
range. For single LDO applications, please refer to the
LP3985 datasheet.
Features
n
Miniature 8-I/O micro SMD package
n
Stable with 1μF ceramic and high quality tantalum
output capacitors
n
Fast turn-on
n
Two independent regulators
n
Logic controlled enable
n
Over current and thermal protection
Key Specifications
n
Guaranteed 150 mA output current per regulator
n
1nA typical quiescent current when both regulators in
shutdown mode
n
60 mV typical dropout voltage at 150 mA output current
n
115 μA typical ground current
n
40 μV typical output noise
n
200 μs fast turn-on circuit
n
40C to +125C junction temperature
Applications
n
CDMA cellular handsets
n
GSM cellular handsets
n
Portable information appliances
n
Portable battery applications
Typical Application Circuit
20003401
May 2003
L
P
2003 National Semiconductor Corporation
DS200034
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3986TL-2929/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 |
| LP3986TL-3028 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LP3986TL-3028/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 |
| LP3986TL-3030 | 制造商:Texas Instruments 功能描述:LDO Regulator Pos 3V 0.15A/0.15A 8-Pin uSMD T/R |
| LP3986TL-3030/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 |
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