TPS65381无Vsout1输出，求大神指导

TPS65381完全按照datasheet设计的，按照6.2.2.4章节电路供电，其中VBATP=VBAT_SAFING=VSIN=7V，VTRCAK1=VDD3/5=3.3V,能够输出稳定的5V与1.2V，这边都是期望结果。但是VSOUT1=0V，初次使用，实在找不出原因，求各位论坛大神指导，谢谢大家

Wu JW：

请先提供一下你的原理图。

siyu you：

如下，是否有可能是下面的原因导致：

当VSIN 使用VBAT供电时，输出电压最好在5V 以上，低于5v时估计可能是热功率过高损坏了。

VSOUT1 Voltage RegulatorVSIN is the supply pin of VSOUT1 voltage regulator. If VSIN is connected to VDD6, lower powerdissipation can be achieved. VSIN is supplied by VDD6 by placing a jumper to short pin 26 and 28 ofCON2. If VSIN is connected to VBATP, output voltages higher than 5V are possible at the expense ofhigher power dissipation. To supply VSIN from VBATP, place a jumper to short pin 24 and 26 of CON2.The capacitor C3 stabilizes the input voltage. The voltage regulator can be used in tracking or nontracking mode. Additionally, the voltage dividers R11 and R12 are used to define the output voltage. Thecapacitor C4 is needed for stable operation. The output voltage VSOUT1 is available at CON2, pin 30.