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參數資料
| 型號： | LP3988IMFX-3.3 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator With Power Good |
| 中文描述： | 3.3 V FIXED POSITIVE LDO REGULATOR, 0.15 V DROPOUT, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數： | 1/11頁 |
| 文件大?。?/td> | 292K |
| 代理商： | LP3988IMFX-3.3 |
LP3988
Micropower, 150mA Ultra Low-Dropout CMOS Voltage
Regulator With Power Good
General Description
The LP3988 is a 150mA low dropout regulator designed
specially
to
meet
requirements
of
Portable
battery-
applications. The LP3988 is designed to work with a space
saving, small 1μF ceramic capacitor. The LP3988 features
an Error Flag output that indicates a faulty output condition.
The LP3988’s performance is optimized for battery powered
systems to deliver low noise, extremely low dropout voltage
and low quiescent current. Regulator ground current in-
creases only slightly in dropout, further prolonging the bat-
tery life.
Power supply rejection is better than 60 dB at low frequen-
cies and starts to roll off at 10 kHz. High power supply
rejection is maintained down to lower input voltage levels
common to battery operated circuits.
The device is ideal for mobile phone and similar battery
powered wireless applications. It provides up to 150 mA,
from a 2.5V to 6V input, consuming less than 1 μA in disable
mode and has fast turn-on time less than 200μs.
The LP3988 is available 5 pin SOT-23 package and 5 bump
thin micro SMD package. Performance is specified for 40C
to +125C temperature range and is available in 1.85, 2.5,
2.6, 2.85, 3.0 and 3.3V output voltages.
Key Specifications
n
2.5 to 6.0V input range
n
150mA guaranteed output
n
40dB PSRR at 10kHz
n
≤
1 μA quiescent current when shut down
n
Fast Turn-On time: 100 μs (typ.)
n
80 mV typ dropout with 150mA load
n
40 to +125C junction temperature range for operation
n
1.85V, 2.5V, 2.6V, 2.85V, 3.0V, and 3.3V
Features
n
5 bump thin micro SMD package
n
SOT-23-5 package
n
Power-good flag output
n
Logic controlled enable
n
Stable with ceramic and high quality tantalum capacitors
n
Fast turn-on
n
Thermal shutdown and short-circuit current limit
Applications
n
CDMA cellular handsets
n
Wideband CDMA cellular handsets
n
GSM cellular handsets
n
Portable information appliances
n
Tiny 3.3V
±
5% to 2.85V, 150mA converter
Typical Application Circuit
20020502
August 2004
L
2004 National Semiconductor Corporation
DS200205
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LP3988IMFX-3.0 | Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator With Power Good |
| LP3988IMF-3.3 | Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator With Power Good |
| LP3988IMF-3.0 | Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator With Power Good |
| LP3988IMF-2.85 | Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator With Power Good |
| LP3988 | Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator With Power Good |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LP3988ITL-1.85 | 制造商:Texas Instruments 功能描述:LDO Regulator Pos 1.85V 0.15A 5-Pin uSMD T/R |
| LP3988ITL-1.85/NOPB | 功能描述:低壓差穩壓器 - 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3988ITL-2.6 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:IC V REG LDO 0.15A 2.6V SMD 3988 |
| LP3988ITL-2.6/NOPB | 功能描述:低壓差穩壓器 - 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3988ITL-2.85 | 制造商:Texas Instruments 功能描述:V REG LDO 0.15A 2.85V SMD 3988 |
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