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相位补偿定时锁存短路保护PWM/PFM开关控制电路CXSU6352输入电压1.8V至5.5V输出电流2.0A | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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） 一.产品概述 The CXSU6352 series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an oscillation circuit, an error amplifier, a phase compensation circuit, a timer latch short-circuit protection circuit, a PWM / PFM switching control circuit. With an external low-ON-resistance Nch Power MOS, this product is ideal for applications requiring high efficiency and a high output current. During light-load, CXSU6352 Series switches its operation to the PFM control by the PWM / PFM switching control circuit in order to prevent efficiency decline due to the IC operating current. Ceramic capacitors can be used for output capacitor. 二.产品特点 ●Input voltage range: 1.8 V to 5.5 V ●Duty ratio: Built-in PWM/PFM switching control circuit 28% to 85% ●oscillator frequency：1.2MHz ●Reference voltage : 0.6 x (1±2%) V ● Maximum output current: 2.0A typ. (VDD=3V, Vout=5.0V) ●Soft start function: 8ms typ. ●Low current consumption: 70μA typ. at switching off ●Shutdown function: Current consumption 1.0μA max. at shutdown ●External parts: Inductor, diode, capacitor, transistor ●Timer latch short-circuit protection circuit: Selectable with / without short-circuit protection circuit for each product; ●Settable delay time by external capacitor (in the product with short-circuit protection) ●UVLO (under-voltage lockout) function: Selectable with UVLO for each product 三.应用范围 MP3 players, digital audio players Digital cameras, GPS, wireless transceiver Portable devices 四.技术规格书（产品PDF) 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！ 五.产品封装图 六.电路原理图
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发表时间：2020-06-03浏览次数：289
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