Synchronous switching regulators and controllers employ two switched elements – a high-side switched element and a low-side switched element. This is in contrast to non-synchronous regulators that traditionally employ a single switched element for controlling the high-side voltage and a high speed Schottky diode which functions as the low-side switch.
Synchronous switching regulators generally integrate both switches into the device, while synchronous controllers provide only the switch drive signals. In both cases the switching elements are low RDS(ON), high-power FETs.
Synchronous switching regulators and controllers generally provide more efficient voltage regulation because the timing of both switches is controllable, plus FETs provide lower resistance than Schottky diodes.
Synchronous switching regulators and controllers are available in both step-up and step-down configurations. We offer the most advanced synchronous switching regulators and controllers available.
Step-Down (Buck) Synchronous Switching Regulators (Internal Switch)
Step-Down (Buck) Synchronous Switching Controllers (External Switch)
Step-Up (Boost) Synchronous Switching Regulators (Internal Switch)
Step-Up/Step-Down (Buck/Boost) Synchronous Switching Regulators
Learn about modern switching regulator technology to understand how to differentiate a modern switching regulator IC from those using older technology.
|Application Note||6129||Synchronous or Nonsynchronous Topology? Boost System Performance with the Right DC-DC Converter|
|Application Note||652||Synchronous Rectification Aids Low-Voltage Power Supplies|