qx2304 是一款高效率、低功耗、低 纹波、高工作频率的pfm同步升压dc-dc 变换器。

qx2304 仅需要三个外围元件,就可 完成将低输入的电池电压变换升压到所需 的工作电压。

qx2304 的输出电压,可通过内部调 节进行选择(步进 0.1v),方便客户应用 于不同的输出负载情况。

qx2304 系统输 出电压具有低纹波,低噪声的特点。

qx2304 内置的同步开关管可极大降 低开关管上的损耗,使效率最高可达95%。

qx2304 工作于 pfm 模式,可有效降低轻 载模式下的损耗,提高设备的使用周期。 同时,芯片低的静态电流可进一步降低系 统损耗。

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qx2304

qx2304 is a pfm synchronous boost dc-dc converter with high efficiency, low power consumption, low ripple and high operating frequency.

the qx2304 requires only three peripheral components to convert and boost the low input battery voltage to the required operating voltage.

the output voltage of qx2304 can be selected by internal adjustment (step 0.1v), which is convenient for customers to apply to different output load conditions.

the output voltage of qx2304 system has the characteristics of low ripple and low noise.

the built-in synchronous switching tube of qx2304 can greatly reduce the loss on the switching tube, and the efficiency can reach up to 95%.

qx2304 works in pfm mode, which can effectively reduce the loss in light load mode and improve the service life of the device. at the same time, the low quiescent current of the chip can further reduce system losses.


ø maximum efficiency: 95%

ø maximum working frequency: 300 khz

ø low quiescent current: 15ua

ø optional output voltage: 2.5v ~ 3.6v

ø output accuracy: ± 2.5%

ø wide input voltage range: 0.9v ~ 3.6v

ø low ripple and low noise


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