CXSU63183是一款电流模式的同步升压转换器，在其内部集成软启动、过流和过温等保护功能。由于在片内集成了两个同步整流管，使得此IC具有高达95%的峰值效率。在关断模式下，该转换器能实现输入、输出完全断开，负载电流为零。500KHz的工作频率允许使用更小的外围器件，从而节约板上空间。
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产品概述 返回TOP
CXSU63183是一款电流模式的同步升压转换器，在其内部集成软启动、过流和过温等保护功能。由于在片内集成了两个同步整流管，使得此IC具有高达95%的峰值效率。在关断模式下，该转换器能实现输入、输出完全断开，负载电流为零。500KHz的工作频率允许使用更小的外围器件，从而节约板上空间。内部补偿和软启动功能更进一步减少外围器件并限制启动时的电流过冲。当输入电压为2.2V，输出电压为3.3V最大输出能力达400mA。CXSU63183采用TSOT23-5封装。The CXSU63183 is a highly efficient, synchronous, fixed frequency, current-mode step-up converter with output to input disconnect. When CXSU63183 is disabled, the internal conduction path from SW to OUT is fully blocked and the OUT pin is isolated from the battery. This output disconnect feature reduces the shutdown current to typically only 50nA. The 500KHz switching frequency allows for smaller external components producing a compact solution for a wide range of load currents. Highly integration and internal compensation network minimizes as 5 external components, N-Channel switch and P-Channel Synchronous switch integration will greatly improve converter efficiency. Internal soft-start function also reduce inrush current. The CXSU63183 regulates the output voltage up to 6V from either a 2-cell NiMH/NiCd or a single-cell Li-Ion battery. The CXSU63183is offered in a thin SOT23-5 package.
产品特点 返回TOP
• 效率>90%
• 实现输入、输出完全断开
• 同步整流管内置
• 内置软启动功能
• 内部补偿
• 1.6A电流极限
• 500KHz工作频率
• 内置过温保护
• 零关断电流
• TSOT23-5封装
• 符合RoHS规范及Pb-Free
z Over 90% Efficiency
z 1.6A Typical Switch Current Limit
z 500KHz Fixed Switching Frequency
z Output to Input Disconnect at Shutdown Mode
z Internal Synchronous Rectifier
z Internal Soft-Start
z Internal Compensation
z 50nA Shutdown Current
z Thermal Shutdown
z 5-Pin TSOT-23 Package
z RoHS compliant and 100% lead(Pb)-free
应用范围 返回TOP
• MP3播放器
• 手持式电脑和PDAs
• 数码相机和摄像机
• 外置调制解调器
• 小型LCD面板
z GPS PND
z Handheld Digital Audio
z Digital Still and Video Cameras
z White LED Flash
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
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电路原理图 返回TOP
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升压变换器/控制器 |
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Part Number |
remark |
Vin (V) |
Vout (max) (V) |
FB (V) |
IQ (mA) |
Isw (A) |
Freq. (KHz) |
Peak Efficency (%) |
Package |
|
2.5A, 500KHz Synchronous Boost Converter |
2.7~5.0 |
5.5 |
1.25 |
2.5 |
2.5 |
500 |
95 |
SOT23-5 |
|
|
6A Peak Current Synchronous Step-up Converter with Output Disconnect |
1.8~5.0 |
5.5 |
1.2 |
0.35 |
6 |
500 |
95 |
TQFN-10 |
|
|
1.6A, 500KHz Synchronous Rectified Step-up Converter |
2.6 ~ 5.5 |
6 |
1.25 |
0.39 |
1.6 |
500 |
90 |
TSOT23-5 |
|
|
500kHz Synchronous Step-Up Converter / 600mA Low Noise LDO |
2.2~5.5 |
6 |
1.25 |
0.57 |
1.6 |
500 |
95 |
TDFN-10 |
|
|
750kHz/1.2MHz Step-up DC/DC Converter |
2.5 ~ 5.5 |
12 |
1.24 |
0.5 |
1.9 |
750/1200 |
90 |
MSOP-8 |
|
|
1MHz Boost Regulator with 18V Integrated FET Switch in Tiny SOT-23 |
2.6 ~ 5.5 |
18 |
1.25 |
0.4 |
2 |
1000 |
90 |
SOT23-5 |
|
|
1.2MHz Step-Up PWM Controller |
2.6 ~ 5.5 |
- |
0.6 |
0.5 |
2 |
1200 |
90 |
SOT23 |
|
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