TPS61288: TPS61288 Excessive ripple

Part Number: TPS61288

Hello

I use TPS61288 and TLV69627 to drive LEDs, and the Vled ripple is approximately 200 mV at no load.Please take a look to find the problem. How can I lower the power ripple? 

The schematic diagram is shown below.

Vin_min = 5V and Vin_Max = 8.4V. 

Iout_max = 2A

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I also measured the waveforms of Vled and the SW pin.

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