Highway09a Ic Datasheet -

or sourced through specialized distributors, it is commonly found in a PDIP16 (Plastic Dual In-line Package)

Standard 5V output with a maximum current of 1A . Power Consumption: Ultra-low quiescent current (~10μA). highway09a ic datasheet

While specific pin assignments can vary by exact manufacturer implementation (like Holtek), a typical HIGHWAY09A configuration focuses on regulation and protection: or sourced through specialized distributors, it is commonly

+-------------------\_/-------------------+ 1 --| VDD (Logic Supply) (Output Drive) HO |-- 16 2 --| RT (Timing Resistor) (Bootstrap Pin) VB |-- 15 3 --| CT (Timing Cap) (Output Return) VS |-- 14 4 --| CS (Current Sense) (Ground Ref) VSS |-- 13 5 --| COMP (Error Amp Out) (Enable Control) EN |-- 12 6 --| OVP (Overvoltage) (Channel Select S1) S1 |-- 11 7 --| VIN (Line Voltage) (Channel Select S0) S0 |-- 10 8 --| SS (Soft Start) (Analog Out) AOUT |-- 9 +-----------------------------------------+ Architectural Blocks or sourced through specialized distributors