
Power Integrations Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 30 interview experiences · FREE TO READ
Which role are you interviewing for?
15 roles · 30 reportsCandidate interview experiences
First-hand accounts from people who interviewed at Power Integrations.
Human Resources
The scheduled interviewer/hiring manager didn't show up for the video interview at 7 am, even though I tried to accommodate their US time zone. A junior staff member ended up doing the interview instead. They seemed unprepared, just reading my CV on the spot and struggled to fill the 30 minutes with good questions. When I asked about the role, their answers were weak, and they cut the interview short saying they had to rush to another meeting, leaving me without good answers. No one followed up, and the hiring manager never apologized or explained their absence. It felt like a total lack of respect.
- Can you describe your previous work experience?
Quality Assurance Engineer
The interview process involved 5 separate sessions with various people, which was quite time-consuming. They promised to cover my flight expenses for the interview, but the finance team at PI didn't reimburse the full amount on time. Thankfully, the HR team stepped in and sorted it out, though there seemed to be some internal miscommunication or misunderstandings within their team.
- How familiar were you with Power Integrations?
Senior IC Design Engineer
I applied for the role in Cambridge, UK. First, I had a call with the senior design manager, which included general and technical questions. Then, I had a second technical interview with the same manager. After about 3 weeks, I interviewed with HR, who seemed new and just repeated the job ad. The hiring process then became strange. I heard nothing for 2 weeks, and after asking, they said they were still interviewing others and would update me soon. Two more weeks passed with no update. I inquired again, and they promised a decision by mid-April. It's now mid-May, and there's still no decision. I feel they weren't serious about hiring and I'm unsure if the position even exists. It feels like a waste of time.
- Can you tell me what you know about the PI?
Applications Engineer
It's a 2-level interview process. First, you'll talk with the manager, which is less technical. Then, you'll have a discussion with colleagues where you'll talk in-depth about power supply topologies and design. Good engineers will find it relatively easy. When the questions get more challenging, remember to get back to basics. If you claim you've done something in the past, be ready to provide evidence.
- As a representative for the customer's purchasing department, try to convince me to purchase your IC, focusing on the cost and benefits of your solution.
Power Integrations Interview Questions
Quoted word for word from Power Integrations interview reports.
“Describe the waveform of an SR latch.”
Read reports →“What are the characteristics of a Schmitt Trigger?”
Read reports →“Could you explain what occurs when a mosfet is used to replace the diode in a buck converter?”
Read reports →“Draw an RC circuit. How much time does it take to charge to 90% of the input voltage when Vin is applied?”
Read reports →“For a couple of circuits with PMOS and NMOS in a current mirror setup, what are the node voltages based on the input to one of the transistor's gates?”
Read report →“Explain the transfer characteristics of a CMOS inverter.”
Read report →“Describe the layout/cross-section of an inverter and provide the small signal model of a MOSFET.”
Read report →“What is the model for an LDO?”
Read report →“Can you explain the basic working principle of SMPS?”
Read report →Formats, difficulty and experience
Across all 30 Power Integrations interview reports.