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English0.85V启动，500mA PWM 3-PIN 同步升压转换器CXSU6385是一款0.85V启动、PWM控制，并只有3个引脚的同步升压转换器。CXSU6385一般可满足500mA的输出电流，输出电压固定为3.3V或者5V。在空载待机时，功耗在100uA左右。同时CXSU6385是一款轻载高效的PWM控制升压转换器，不同于简单的PFM升压，没有PFM升压所必须的输出电容必须要有ESR来稳定环路的要
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档）</span>
5.产品封装 6.电路原理图</strong> 7.相关产品
CXSU6385是一款0.85V启动、PWM控制，并只有3个引脚的同步升压转换器。CXSU6385一般可满足500mA的输出电流，输出电压固定为3.3V或者5V。在空载待机时，功耗在100uA左右。同时CXSU6385是一款轻载高效的PWM控制升压转换器，不同于简单的PFM升压，没有PFM升压所必须的输出电容必须要有ESR来稳定环路的要求，可使用体积超小的陶片电容。加之其1M开关频率，可采用超小的电感以及本身SOT89-3的小体积封装，特别适合PCB空间有限的手持设备。</span>
The CXSU6385 is a step-up converter that provides a boosted output voltage from a low voltage source. Because of its proprietary design, it starts up at a very low input voltage down to 850mV, making it an ideal choice for single cell alkaline/NiMH battery operations. A switching frequency of 1MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current mode PWM design is internally compensated, reducing external parts count. CXSU6385 is housed in a tiny SOT23-5 package.
◆</span>0.85V启动
◆</span>0.9A输出电流
◆</span>高达95%的转换效率</span>
◆</span>2MHz开关频率</span>
◆</span>PWM控制方式
◆</span>空载待机电流100uA
◆</span>可使用MLCC输出电容
◆</span>固定输出电压3.3V/5.0V
◆</span>Low Vin Start-up Voltage down to 850mV Ideal for Single Alkaline Cell operations
◆</span> Capable of delivering 500mA output current at Vin=3.0V, V out=3.3V
◆</span> 1MHz Switching Frequency allows small inductor and output cap
◆</span> Input boost-strapping allows using small or no input cap
◆</span> Low Noise PWM control
◆</span> Internally Compensated Current Mode Control
◆</span> Internal Synchronous Rectifier
◆</span> Logic Control Shutdown (IQ<1uA)
◆</span> Available in SOT89-3
◆</span>智能电视遥控器鼠标</span>
◆</span>无线鼠标
◆</span>玩具
◆</span>血压计
◆</span>3D眼镜
◆</span>其他电池供电类设备</span>
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持</span>！</span>
| DC-DC>同步升压 | |||||||||||
| Device | Device | Archi tecture | VIN | VOUT | Isw | Vfb | Switching | IQ | Package | ||
| Description | (min) | (max) | (min) | (max) | (max) | (V) | Frequency | (uA) | |||
| (V) | (V) | (V) | (V) | (A) | (Hz) | ||||||
| CXSU6382 | 12W/20V异步升压 | 外部补偿 | 2.7 | 5.5 | Vin | 20 | 可调 | 0.6 | 可调 | 600 | ESOP8 |
| CXSU6383 | 10uA Iq 同步升压 | 内部补偿 | 0.85 | 4.5 | 2.1 | 5 | 0.7 | 0.6 | 1M | 10 | SOT23-5 |
| CXSU6384 | 500mA同步升压 | 内部补偿 | 0.85 | 4.5 | 2.1 | 5 | 1 | 0.6 | 1M | 60 | SOT23-5 |
| CXSU6385 | 500mA 3-Pin同步升压 | 内部补偿 | 0.85 | 4.5 | 3.3 | 5 | 1 | N/A | 1M | 60 | SOT89-3 |
| CXSU6386 | 900mA真关断同步升压</td> | 内部补偿 | 0.85 | 4.5 | 2.1 | 5 | 1.5 | 0.6 | 2M | 40 | DFN2x2-6 |
| CXSU6387 | 3W真关断同步升压</td> | 内部补偿 | 0.85 | 4.5 | 2.1 | 5 | 1.5 | N/A | 2M | 40 | SOT23-5 |
| CXSU6388 | 5V/2.5A真关断同步升压</td> | 内部补偿 | 2.65 | 4.5 | 5 | 5 | 5 | N/A | 1M | 120 | DFN3x3-12 |
| CXSU6389 | 5V/2A真关断同步升压</td> | 内部补偿 | 3.1 | 4.5 | 5 | 5 | 5 | N/A | 1M | 120 | DFN3x3-12 |
| CXSU6390 | 5V/2.5A真关断同步升压</td> | 内部补偿 | 3.1 | 4.5 | 5 | 5 | 5 | N/A | 1M | 120 | DFN3x3-12 |
| CXSU6391 | 5V/2.5A真关断同步升压</td> | 内部补偿 | 1.8/3.1 | 5 | Vin | 5.5 | 6 | 0.6 | 1M | 50 | DFN3x3-12 |
| CXSU6392 | 5V/2.5A真关断同步升压</td> | 内部补偿 | 1.8/3.1 | 5 | Vin | 5.5 | 6 | 0.6 | 1M | 50 | QFN3x3-16 |
| CXSU6393 | 5V/2.5A真关断同步升压</td> | 纯PWM/内部补偿 | 1.8/3.1 | 5 | Vin | 5.5 | 6 | 0.6 | 1M | 10000 | QFN3x3-16 |
| CXLE8201 | 高效单串10颗LED驱动 | 外部补偿 | 2.7 | 6 | Vin | 40 | 0.7 | 0.2 | 600K | 600 | SOT23-6 |
| CXLE8202 | 高效单串10颗LED驱动 | 外部补偿 | 2.7 | 6 | Vin | 40 | 0.7 | 0.2 | 600K | 600 | DFN2x2-6 |
| CXLE8203 | 10W/24V异步升压 | 内部补偿 | 2.7 | 6 | Vin | 24 | 3 | 0.2 | 1M | 250 | SOT23-6 |
| CXLE8204 | 高效单串10颗LED驱动 | 内部补偿 | 2.7 | 6 | Vin | 40 | 1 | 0.2 | 800K | 250 | SOT23-6 |
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