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參數(shù)資料
| 型號(hào)： | LM3475 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Hysteretic PFET Buck Controller |
| 中文描述： | 遲滯PFET的降壓控制器 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 305K |
| 代理商： | LM3475 |
LM3475
Hysteretic PFET Buck Controller
General Description
The LM3475 is a hysteretic P-FET buck controller designed
to support a wide range of high efficiency applications in a
very small SOT23-5 package. The hysteretic control scheme
has several advantages, including simple system design
with no external compensation, stable operation with a wide
range of components, and extremely fast transient re-
sponse. Hysteretic control also provides high efficiency op-
eration, even at light loads. The PFET architecture allows for
low component count as well as 100% duty cycle and ultra-
low dropout operation.
Features
n
Easy to use control methodology
n
0.8V to V
IN
adjustable output range
n
High Efficiency (90% typical)
n
±
0.9% (
±
1.5% over temp) feedback voltage
n
100% duty cycle capable
n
Maximum operating frequency up to 2MHz
n
Internal Soft-Start
n
Enable pin
n
SOT23-5 package
Applications
n
TFT Monitor
n
Auto PC
n
Vehicle Security
n
Navigation Systems
n
Notebook Standby Supply
n
Battery Powered Portable Applications
n
Distributed Power Systems
Typical Application Circuit
20070101
October 2004
L
2004 National Semiconductor Corporation
DS200701
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3475MF | Hysteretic PFET Buck Controller |
| LM3475MFX | Hysteretic PFET Buck Controller |
| LM3480IM3-12 | 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator |
| LM3480IM3-3.3 | 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator |
| LM3480IM3-5.0 | 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3475EVAL | 功能描述:電源管理IC開發(fā)工具 LM3475 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LM3475EVAL | 制造商:Texas Instruments 功能描述:EVAL BOARD, LM3475 HYSTERITIC STEP-DOWN |
| LM3475MF | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| LM3475MF/NOPB | 功能描述:DC/DC 開關(guān)控制器 HYSTERETIC PFET BUCK CONTROLLER RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| LM3475MFX | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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