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參數(shù)資料
| 型號： | LM2703 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Micropower Step-up DC/DC Converter with 350mA Peak Current Limit |
| 中文描述： | 微功耗升壓型DC / DC 350mA的峰值電流限制轉換器 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 307K |
| 代理商： | LM2703 |
LM2703
Micropower Step-up DC/DC Converter with 350mA Peak
Current Limit
General Description
The LM2703 is a micropower step-up DC/DC in a small
5-lead SOT-23 package. A current limited, fixed off-time
control scheme conserves operating current resulting in high
efficiency over a wide range of load conditions. The 21V
switch allows for output voltages as high as 20V. The low
400ns off-time permits the use of tiny, low profile inductors
and capacitors to minimize footprint and cost in space-
conscious portable applications. The LM2703 is ideal for
LCD panels requiring low current and high efficiency as well
as white LED applications for cellular phone back-lighting.
The LM2703 can drive up to 4 white LEDs from a single
Li-Ion battery.
Features
n
350mA, 0.7
, internal switch
n
Uses small surface mount components
n
Adjustable output voltage up to 20V
n
2.2V to 7V input range
n
Input undervoltage lockout
n
0.01μA shutdown current
n
Small 5-Lead SOT-23 package
Applications
n
LCD Bias Supplies
n
White LED Back-Lighting
n
Handheld Devices
n
Digital Cameras
n
Portable Applications
Typical Application Circuit
20030601
FIGURE 1. Typical 20V Application
April 2003
L
2003 National Semiconductor Corporation
DS200306
www.national.com
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| LM2704MF-ADJ | Micropower Step-up DC/DC Converter with 550mA Peak Current Limit |
| LM2704MFX-ADJ | Micropower Step-up DC/DC Converter with 550mA Peak Current Limit |
| LM2704 | Micropower Step-up DC/DC Converter with 550mA Peak Current Limit |
| LM2705 | Micropower Step-up DC/DC Converter with 150mA Peak Current Limit |
| LM2705MF-ADJ | Micropower Step-up DC/DC Converter with 150mA Peak Current Limit |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM2703EV | 功能描述:電源管理IC開發(fā)工具 LM2703 EVAL UNIT 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 |
| LM2703EV/NOPB | 制造商:Texas Instruments 功能描述:Evaluation Board For LM2703 |
| LM2703MFADJ | 制造商:Texas Instruments 功能描述: |
| LM2703MF-ADJ | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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 安裝風格: 封裝 / 箱體:CPAK |
| LM2703MF-ADJ | 制造商:Texas Instruments 功能描述:IC PFM DC/DC CONV ADJ POWERWISE |
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