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參數(shù)資料
| 型號(hào)： | LP3928 |
| 廠(chǎng)商： | National Semiconductor Corporation |
| 英文描述： | High Speed Bi-Directional Level Shifter and Ultra Low-Dropout CMOS Voltage Regulator |
| 中文描述： | 高速雙向電平轉(zhuǎn)換器和超低壓差CMOS電壓穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大?。?/td> | 240K |
| 代理商： | LP3928 |
LP3928
High Speed Bi-Directional Level Shifter and Ultra
Low-Dropout CMOS Voltage Regulator
General Description
The LP3928 is designed for portable and wireless applica-
tions with demanding performance and space requirements.
The LP3928 provides level shifting and power conversion
needed for applications interfacing differing voltage levels.
The part contains a bi-directional level shifter for three sig-
nals to translate the levels between 1.8V and 2.85V and an
ultra low-dropout CMOS 2.85V voltage regulator.
The three level shifted signals are individually direction con-
trolled. Signals going from 2.85V to 1.8V can also be latched
using an external clock source. The latches are powered
from internal 2.85V. There is also an option to by-pass the
latches.
The built-in low-dropout voltage regulator is ideal for mobile
phone and battery powered wireless applications. It provides
up to 150 mA from a 3.05V to 6.0V input, and is character-
ized by extremely low dropout voltage, low quiescent current
and low output noise voltage. It is stable with small 1.5 μF
±
30% ceramic and high quality tantalum output capacitors,
requiring smallest possible PC board area.
A shutdown mode is available for the level shifters and the
regulator. High performance is achieved over various load
conditions with very low rise and fall times.
Key Specifications
Level Shifter:
n
4 ns propagation delay (typ.)
n
2 ns rise and fall times (typ.)
n
20 ns direction switch response time
n
2 μA input/output leakage current
Low-Dropout Regulator:
n
3.05V to 6.0V input range
n
150 mA guaranteed output
n
Fast Turn-On time: 200 μs (typ.)
n
100 mV maximum dropout with 150 mA load
Features
n
Ultra small micro SMD package
n
Bi-directional level-shifter for three individual signals:
1.8V to 2.85V and 2.85V to 1.8V signal level translation
n
Logic controlled enable pins: 4 different operation
modes
n
LDO stable with ceramic and high quality tantalum
capacitors
n
Thermal shutdown
Applications
n
Multi-Media Cards for Cellular Phones
n
SD Cards for Cellular Handsets
n
Logic Level Translation
n
Portable Information Appliances
October 2002
L
2002 National Semiconductor Corporation
DS200391
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3928TL-1828 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LP3928TL-1828/NOPB | 功能描述:IC REG L-SHIFT 1.8-285V 16USMD RoHS:是 類(lèi)別:集成電路 (IC) >> 邏輯 - 變換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 邏輯功能:變換器，雙向 位數(shù):2 輸入類(lèi)型:CMOS 輸出類(lèi)型:CMOS 數(shù)據(jù)速率:16Mbps 通道數(shù):2 輸出/通道數(shù)目:1 差分 - 輸入:輸出:無(wú)/無(wú) 傳輸延遲（最大）:15ns 電源電壓:1.65 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:10-UFQFN 供應(yīng)商設(shè)備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
| LP3928TLX-1828 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:High Speed Bi-Directional Level Shifter and Ultra Low-Dropout CMOS Voltage Regulator |
| LP3928TLX-1828/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 |
| LP3929 | 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:High Speed Bi-Directional Level Shifter and Ultra Low-Dropout CMOS Voltage Regulator and Line Protection |
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