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參數(shù)資料
| 型號： | LM4510 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Synchronous Step-Up DC/DC Converter with True Shutdown Isolation |
| 中文描述： | 同步升壓型DC / DC轉(zhuǎn)換器，具有真關(guān)斷隔離 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大小： | 2362K |
| 代理商： | LM4510 |
October 2007
LM4510
Synchronous Step-Up DC/DC Converter with True
Shutdown Isolation
General Description
The LM4510 is a current mode step-up DC/DC converter with
a 1.2A internal NMOS switch designed to deliver up to 120
mA at 16V from a Li-Ion battery.
The device's synchronous switching operation (no external
Schottky diode) at heavy-load, and non-synchronous switch-
ing operation at light-load, maximizes power efficiency.
True shutdown function by synchronous FET and related cir-
cuitry ensures input and output isolation.
A programmable soft-start circuit allows the user to limit the
amount of inrush current during startup. The output voltage
can be adjusted by external resistors.
The LM4510 features advanced short-circuit protection to
maximize safety during output to ground short condition. Dur-
ing shutdown the feedback resistors and the load are discon-
nected from the input to prevent leakage current paths to
ground.
The LM4510 is available in a 10-pin thermally enhanced
Leadless Leadframe Package: LLP-10.
Features
■
18V@80 mA from 3.2V input
■
5V@280 mA from 3.2V input
■
No external Schottky diode required
■
85% peak efficiency
■
Soft start
■
True shutdown isolation
■
Stable with small ceramic or tantalum output capacitors
■
Output short-circuit protection
■
Feedback fault protection
■
Input under-voltage lock out
■
Thermal shutdown
■
0.002 μA shutdown current
■
Wide input voltage range: 2.7V to 5.5V
■
1.0 MHz fixed frequency operation
■
Low-profile 10–pin LLP package (3mm x 3mm x 0.8mm)
Applications
■
Organic LED Panel Power Supply
■
Charging Holster
■
White LED Backlight
■
USB Power Supply
■
Class D Audio Amplifier
■
Camera Flash LED Driver
Typical Application Circuit
30031001
FIGURE 1. Typical Application Circuit
2007 National Semiconductor Corporation
300310
www.national.com
L
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| LM4510SDX | Synchronous Step-Up DC/DC Converter with True Shutdown Isolation |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4510SD | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Up 2.7V to 5.5V 10-Pin LLP EP T/R |
| LM4510SD/NOPB | 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 |
| LM4510SDEV | 功能描述:電源管理IC開發(fā)工具 LM4510S EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LM4510SDEV/NOPB | 制造商:Texas Instruments 功能描述:SYNCHRONOUS STEP-UP DC/DC CONVERTER WITH - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:KIT EVAL STEPUP DC/DC FOR LM4510 制造商:Texas Instruments 功能描述:Eval Mod AN-1697 LM4510 |
| LM4510SDX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Synchronous Step-Up DC/DC Converter with True Shutdown Isolation |
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