In my design I have used MAX889resa+ IC which will convert positive voltage to negative voltage . In my design it will convert +3.3V to -3V with help of adjustable resistors . my load is 60 ohm , for this load voltage is dropping from -3V to 2.8V. But in data sheet it's mentioned it can handle 200mA load .Upto 200 ohm load the output voltage seems to stable without any dropout . Why this IC can't with stand this current ? why this issue is happening?