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Diodes推出降压型DC-DC转换器AP3403

关键词:Diodes 降压型DCDC转换器 AP3403

时间:2015-06-03 15:38:40      来源:中电网

国际即时新品(原文:英文)

Buck Converter from Diodes Incorporated Raises Portable Efficiency

Diodes Incorporated (Nasdaq: DIOD), a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete, logic and analog semiconductor markets, today introduced the AP3403. Achieving typical efficiencies greater than 95%, this miniature step-down DC-DC converter helps lengthen the battery lifetime of smartphones and other low-voltage portable products. The AP3403 is a synchronous PWM converter that drives a load at up to 600mA, maintaining high efficiency through a configuration of external resistor, capacitor and inductor components.

To support mini Li-Ion battery operation, the input voltage range is low at 2.7V to 5V, with no-load current being only 34µA. The buck converter ensures excellent line and load regulation and employs current mode control to deliver fastest possible transient response and cycle-by-cycle current limit.

By operating at a ripple-reducing fixed 2MHz, the AP3403 is able to help reduce the cost and size of external circuit components, while its ultra-small, thermally efficient U-DFN1616 package further aids a reduction in overall circuit footprint.

The converter’s output voltage range of 0.7V to 5.5V makes it easily configurable to application requirements. System integrity is maintained by a comprehensive array of built-in features that include under-voltage lockout, over-temperature protection, hiccup mode short-circuit protection, and soft-start functionality.









中文自动翻译,供参考

Diodes推出降压型DC-DC转换器AP3403

semiconductor markets, today introduced the AP3403.">Diodes公司(纳斯达克股票代码:DIOD),为广泛的分立,逻辑及模拟半导体市场的全球领先制造商和高品质的特殊应用标准产品和供应商,今天宣布推出AP3403。DC-DC converter helps lengthen the battery lifetime of smartphones and other low-voltage portable products.">实现典型效率大于95%,此微型降压型DC-DC转换器有助于延长智能手机和其他低电压便携产品的电池寿命。在AP3403是一个同步PWM变换器驱动一个负载高达600mA,通过外部电阻,电容和电感元件的结构保持高效率。

为了支持小型锂离子电池供电,输入电压范围是在低2.7V至5V,空载电流仅为34μA。降压转换器可确保卓越的电压和负载调节,并采用电流模式控制,提供最快的瞬态响应和逐周期电流限制。

通过在纹波降低固定2MHz的操作时,AP3403能够帮助减少外部电路元件的成本和尺寸,而其超小,热效率高的U-DFN1616封装,还有助于整个电路的足迹减少。

0.7V至5.5V的转换器的输出电压范围使其非常容易配置的应用需求。系统的完整性是通过内置的功能包括欠压锁定,过温保护,打嗝模式短路保护,软启动功能的综合阵列维护。

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