Switching circuit with a transistor having multiple pull down paths

A switching circuit, comprising:

• a first die, having a first transistor, a second transistor, and a third transistor, wherein the first transistor has a gate terminal configured to receive a first driving signal, a source terminal, and a drain terminal, the second transistor has a gate terminal configured to receive a first pull down control signal, a drain terminal coupled to the gate terminal of the first transistor, and a source terminal coupled to the source terminal of the first transistor, and the third transistor has a gate terminal configured to receive a second pull down control signal, a drain terminal coupled to the gate terminal of the first transistor, and a source terminal coupled to the source terminal of the first transistor;
• and
• a second die co-packed with the first die, having a fourth transistor and a driving circuit, wherein the fourth transistor has a gate terminal configured to receive a second driving signal, a source terminal and a drain terminal, the driving circuit is configured to receive a pulse width modulation signal, and provide the first driving signal, the second driving signal, the first pull down control signal and the second pull down control signal based on the pulse width modulation signal;
• wherein
• the first transistor is coupled to the fourth transistor to form a switch node, which is capable of alternately connecting to an input voltage and a reference ground in response to turning on and off of the first and fourth transistors respectively.