【选型】国产DCDC SCT2430可P2P替换TI TPS54340，并满足车规AEC-Q100

时间： 2021-08-06 来源：芯洲科技

技术问答

某T-box项目上一级电源DCDC原本用的是TI的TPS54340，但是这颗目前缺货非常严重，为了不影响项目的进度，在寻找可以P2P的车规级DCDC替换。国产芯洲科技的SCT2430，可以P2P替换TI TPS54340，并且满足车规AEC-Q100。

下表是SCT2430和TPS54340的主要参数性能对比：

从上面表格中的参数我们可以得知：

1、SCT2430与TPS54340相比，电压参数基本一致，工作温度范围完全一致，可以进行替代；

2、SCT2430的工作频率范围比TPS54340的范围稍微低一点，但是SCT2430的静态电流要远远比TPS54340小，说明了SCT2430的功耗可以做的很小，这大大地延长了芯片的使用寿命；

3、通过对比两个芯片的最大效率点，我们发现也是芯洲科技的SCT2430要高一点，替换TPS54340在性能上是可行的；

4，从管脚和封装来看，管脚排布和封装完全一致，能P2P兼容；

5，SCT2430最大的卖点是满足车规AEC-Q100，所以非常适合用在和汽车相关的产品上。

典型应用电路图对比：

从上图可以看到，SCT2430的外围电路比较简单，基本和TPS54340一致，输出电压通过调整R1和R2电阻来确定。

综上，SCT2430能从管脚封装以及性能上完全P2P替换TPS54340，一方面TI的产品缺货严重，另一方面很多国内企业都要求国产化，所以是芯洲产品有着非常明显的优势。

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思瑞浦（3PEAK）汽车应用线性/转换器/电源管理产品选型指南

描述- 3PEAK is committed to the research and development of high-performance, high-quality, and highly reliable integrated circuit products, including signal chains, power analog chips, mixed-signal frontends, and embedded processors to provide customers with all-around solutions.

型号- TPM27524Q-SO1R-S,TPQ50571Q-QFNR-S,TPL803133Q-DF6R-S,TPA1882Q-VR-S,TPA5562Q-VS1R-S,TPT1029Q-DFCR-S,TPC5120Q-TS7R-S,TPT1044Q-DFCR-S,TPT1029Q-SO1R-S,TPM2025Q-FC1R-S,TPL803150Q-DF6R-S,TPL910ADJQ-DF6R-S,TPT1042Q-SO1R-S,TPS42S40BQ-TSAR-S,TPA1882Q-SO1R-S,TPA1881Q-S5TR-S,TPA5561Q-S5TR-S,TPL853650Q-TSBR-S,TPA5562Q-SO1R-S,TPT1057Q-SO1R-S,TPV710NZQ-S5TR-S,TPQ5055Q-DFTR-S,TPT1044Q-SO1R-S,TPT1057Q-DFCR-S,TPT1462VQ-DFCR-S,TPT1044VQ-SO1R-S,TPT1024Q-QFXR-S,TPA2031Q-S5TR-S,TPC5121Q-TS8R-S,TPM27524Q-DF4R-S,TPT1051VQ-DF6R-S,TPT1043Q-SO2R-S,TPL803150Q-EV1R-S,TPT1021Q-DFCR-S,TPT1051Q-SO1R-S,TPL803133Q-EV1R-S,TPV8368SAQ-S6TR-S,TS2903Q-SO1R-S,TPA5572Q-VS1R-S,TPT1462Q-DFCR-S,TPA5571Q-S5TR-S,TPM5350MQ-SOAR-S,TPT10285Q-SO1R-S,TPT1022Q-DFKR-S,LM2903DQ-SO1R-S,TPT1051Q-DF6R-S,TPL8652FQ-ES1R-S,TPT1057VQ-SO1R-S,TPT1051VQ-SO1R-S,TPM2015Q-FC1R-S,TPA1862Q-SO1R-S,TPT10283Q-SO1R-S,TPT1042VQ-SO1R-S,TPL803133Q-ST4R-S,TPL803433Q-EV1R-S,TPL803450Q-EV1R-S,TPQ50551Q-DFTR-S,TPT29539Q-TS5R-S,TPM92611Q-EV1R-S,TPL855650Q-TSCR-S,TPL803150Q-ST4R-S,TPS42S40AQ-TSAR-S,TPM27524Q-EV1R-S,TPM6505BQ-S6TR-S,TPM6501AQ-S5TR-S,TPA5571NQ-S6TR-S,TPT1022Q-SO2R-S,TPT1043Q-DFKR-S,TPL855633Q-TSCR-S,TPT1044VQ-DFCR-S,TPL853633Q-TSBR-S,TPT1057VQ-DFCR-S,TPL8651Q-ES1R-S,TPT1145NQ-SO2R-S,TPT1462VQ-SO1R-S,TPT1145NQ-DFKR-S,TPM6505AQ-S6TR-S,TPT1462Q-SO1R-S,TPT10285Q-DFCR-S,TPL8151ADQ-ES1R-S,TPA1861Q-S5TR-S,TP28Q-VS1R-S,TPT1042VQ-DF6R-S,TPL8032ADQ-ES1R-S,TPW3188Q-TS3R-S,TPT1042Q-DF6R-S,TPT10283Q-DFCR-S,TPA5572Q-SO1R-S,TPT1021Q-SO1R-S

选型指南 - 思瑞浦 - Rev.3 - 2024/3/12 PDF 英文下载