【应用】同步升压转化器SGM6611CYTQV11G/TR用在GNSS接收机中，最高可支持90%效率

时间： 2023-03-28 来源：世强

技术问答

GNSS接收机首先是对卫星信号进行接收，然后通过内部处理电路将射频信号转化为数字信号进行数据处理，最终解调出准确的位置坐标。在建筑领域，测绘使用的GNSS接收机需要实时移动到相应的位置进行位置测量，因此GNSS接收机中往往会采用锂电池供电的方式。

在某GNSS接收机的设计中需要用到BOOST升压芯片来为后端电路提供稳定的电压，要求输入电压范围宽，并且封装尺寸小。推荐圣邦微的一颗同步升压转化器 SGM6611CYTQV11G/TR，具有宽输入电压范围、高效率等特点。

同步升压转化器SGM6611CYTQV11G/TR在GNSS接收机中的应用有以下特点：

1、输入电压范围为2.7V至12V，具有宽输入电压范围的特点，有利于由单节或两节锂离子/聚合物电池供电的应用。

2、在输入电压为3.3V、输出电压为9V和输出电流为1.5A时，效率高达90%。

3、在PWM模式下采用固定1.1MHz的开关频率。

4、具有13.2V内部输出过压保护、热关断保护等，有利于提高产品的稳定性。

5、采用全集成的方案，带有一个15mΩ的主电源开关和一个27mΩ的整流器开关，有利于简化外部电路设计，降低成本。

6、采用TQFN-2×2.5- 11L的小封装形式，有利于节省PCB空间的设计。

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描述- SGMICRO specializes in high-performance and high-quality analog and mixed-signal integrated circuits, and is committed to building a comprehensive portfolio of the highest quality analog and mixed-signal integrated circuits to address all customer needs.

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型号- SGM51242R8,SGM5353-16,SGM8634C,SGM71612R82Z,SGM71612R81ZXG/TR,SGM51652H8,SGM58200,SGM61720,SGM5209-14,SGM58201,SGM71612R82,SGM51652H4,SGM42403,SGM452,SGM5347-12,SGM51652H4XTS38G/TR,SGM51652HXTS16G-S/TR,SGM58602,SGM71612R82M,SGM2048,SGM58600,SGM71612R81,SGM58601,SGM5347-10,SGM58031Q,SGM42402,SGM42401,SGM8T245XS,SGM71612R81Z,SGM48751X,SGM12UB1D2,SGM51652HX,SGM4029A,SGM6143X,SGM4573,SGM7SZ244,SGM8253,SGM2033,SGM51242R4,74LVC245A,SGM51652H4XTS38G-S/TR,SGMXXXXX,SGM51242R2,SGM58600XTRL20G/TR,SGM5351-16,SGM61030,SGM51622S8XLFH64G/TR,SGM4875XX,SGM58600XSS20G/TR,SGM25701,SGM8270,SGM51610S,SGM58601XSS28G/TR,SGM2050,SGM58031,SGM5200,SGM862,SGM71612R8XX,SGM6130X,SGM2054,SGM860,SGM8277,SGM,SGM51622H,SGM204X,SGM2059,SGM51622D,SGM51610C,SGM89XB,SGM5202-14,74AHC14,SGM61410,SGM5353,SGM51613HXTS16G/TR,SGM71612R8,SGM51652HBXTS38G-S/TR,74AHC08,SGM61411,SGM5208-14,SGM8610,SGM51652H,SGM58601XTQK28GITR,SGM71612R81ZXTSG16G/TR,SGM51652D,SGM5348-10,SGM51652S8XLFH64G/TR,SGM5348-8,SGM5348-12,SGM5349,SGM5355-16,GRM2030,SGM51613HXTQE16G/TR,SGM823,SGM61630,SGM71612R81ZXTS16G/TR,SGM51613H,SGM51622S8,SGM5349-16,SGM8249,SGM51613D,SGM8255B,SGM5860X,SGM5352-16,SGM05FB4D2,SGM4027A,SGM51652H8XTS38G/TR,SGM4551,SGM05FB8D2,SGM5200Q,SGM51652S8,SGM5347-8,SGM80XB

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