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參數(shù)資料
| 型號(hào)： | LM3354-37 |
| 廠(chǎng)商： | National Semiconductor Corporation |
| 英文描述： | Regulated 90mA Buck-Boost Switched Capacitor DC/DC |
| 中文描述： | 穩(wěn)壓九零毫安降壓開(kāi)關(guān)電容升壓式DC / DC |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 394K |
| 代理商： | LM3354-37 |
LM3354
Regulated 90mA Buck-Boost Switched Capacitor DC/DC
Converter
General Description
The LM3354 is a CMOS switched capacitor DC/DC con-
verter that produces a regulated output voltage by automati-
cally stepping up (boost) or stepping down (buck) the input
voltage. It accepts an input voltage between 2.5V and 5.5V.
The LM3354 is available with standard output voltages of
1.8V, 3.3V, 4.1V (ideal for white LED applications), and 5.0V.
If other output voltage options between 1.8V and 5.0V are
desired, please contact your National Semiconductor repre-
sentative.
The LM3354’s proprietary buck-boost architecture enables
up to 90mA of load current at an average efficiency greater
than 75%. Typical operating current is only 375 μA and the
typical shutdown current is only 2.3 μA.
The LM3354 is available in a 10-pin MSOP package. This
package has a maximum height of only 1.1 mm.
The high efficiency of the LM3354, low operating and shut-
down currents, small package size, and the small size of the
overall solution make this device ideal for battery powered,
portable, and hand-held applications.
See the LM3352 for up to 200mA of output current or the
LM3355 for up to 50mA of output current.
Features
n
Regulated V
OUT
with
±
3% (5.0V, 4.1V, and 3.3V
options) or
±
n
Standard output voltages of 1.8V, 3.3V, 4.1V, and 5.0V
n
Custom output voltages available from 1.8V to 5.0V in
100 mV increments with volume order
n
2.5V to 5.5V input voltage range
n
Up to 90mA (5.0V, 4.1V, and 1.8V options) or 70mA
(3.3V option) output current
n
>
75% average efficiency
n
Uses few, low-cost external components
n
Very small solution size
n
375 μA typical operating current
n
2.3 μA typical shutdown current
n
1 MHz typical switching frequency
n
Architecture and control methods provide high load
current and good efficiency
n
MSOP-10 package
n
Over-temperature protection
Applications
n
White LED display backlights
n
1-cell Lilon battery-operated equipment including PDAs,
hand-held PCs, cellular phones
n
Flat panel displays
n
Hand-held instruments
n
Li-Ion, NiCd, NiMH, or alkaline battery powered systems
Typical Operating Circuit
DS200188-1
February 2002
L
2002 National Semiconductor Corporation
DS200188
www.national.com
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PDF描述 |
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| LM3354 | Regulated 90mA Buck-Boost Switched Capacitor DC/DC Converter |
| LM336(中文) | 2.5-V Intergrated Reference Circuits(2.5V基準(zhǔn)電壓源) |
| LM336 | 2.5-V Intergrated Reference Circuits(2.5V基準(zhǔn)電壓源) |
| LM337M | MEDIUM CURRENT THREE-TERMINAL ADJUSTABLE NEGATIVE VOLTAGE REGULATOR |
| LM337MT | MEDIUM CURRENT THREE-TERMINAL ADJUSTABLE NEGATIVE VOLTAGE REGULATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3354-4.1EVAL | 功能描述:BOARD EVALUATION LM3354-4.1 RoHS:否 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC（離線(xiàn)）SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類(lèi)型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開(kāi)關(guān):3MHz 板類(lèi)型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM3354A E WAF | 制造商:Texas Instruments 功能描述: |
| LM3354A-HV E WAF | 制造商:Texas Instruments 功能描述: |
| LM3354MM-1.8 | 制造商:Texas Instruments 功能描述:CONVERTER 90MA SWITCH CAP MSOP10 |
| LM3354MM-1.8/NOPB | 功能描述:IC REG MULTI CONFIG 1.8V 10MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:降壓（降壓） 輸出類(lèi)型:固定 輸出數(shù):1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:125mA 同步整流器:無(wú) 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應(yīng)商設(shè)備封裝:SOT-6 其它名稱(chēng):MAX1836EUT33#TG16DKR |
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