Dear all
When I test the load capacity of the device, there is a question about it, as below, my design is according to EVM, Vout set 5V.
1. When my load is 1.4A, then Vin power on, but there is not any output, Why ? the below waveform is SW and Vin pins(blue is Vin, yellow is SW)
2. When Vin power on, then put on my load 1.4A, the device is normal , the output could be 5V.
3. When my load is below 1.2A, the device is normal, the output could be 5V.
Dear Tim
I had test start by load of 2Ω cement resistance, it can start in normal.
But in my board, I had test start with 4G module, it cann't start at sometimes.
I want to check below two questions:
1. If my load with capacitance is too heavy, it will be not start at sometimes, is it normal ? Like my test results ?
2. Is there any measure that can avoid to start fail ?
3. In the datasheet, as below picture, Fs=2.1MHz,64 clock,64*1/2.1M = 30us,that means the time of overcurrent more than 30us, the device cann't start ?
