New Industry Products

5.5V, 1A Synchronous Buck COT Converters for High-Efficiency Automotive Point of Load Applications

October 29, 2020 by Hailey Stewart

This article highlights AP61100Q and AP61102Q 1A automotive-compliant synchronous buck converters with a wide 2.3V to 5.5V input voltage range.

Diodes Incorporated announces the AP61100Q and AP61102Q 1A automotive-compliant synchronous buck converters with a wide 2.3V to 5.5V input voltage range.  They are AEC-Q100 grade 1 qualified to provide high-efficiency step-down DC-DC conversion. Both devices integrate a 110mΩ high-side power MOSFET and an 80mΩ low-side power MOSFET.

The AP61100Q/AP61102Q can be set to operate in either Pulse Width Modulation (PWM) regardless of load for low output voltage ripple or Pulse Frequency Modulation (PFM) with up to 89% efficiency at 5mA light load.

The AP61100Q and AP61102Q both minimize external component count, due to their adoption of Constant On-Time (COT) control enabling them to achieve fast transient response, easy loop stabilization, and low output voltage ripple.

Both devices are available in the SOT563 package. 


About Diodes Incorporated

Diodes Incorporated is a leading global manufacturer and supplier of high-quality application-specific standard products within the broad discrete, logic, analog and mixed-signal semiconductor markets. Diodes serve the consumer electronics, computing, communications, industrial, and automotive markets. Diodes’ products include diodes, rectifiers, transistors, MOSFETs, protection devices, function-specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors, power management devices, including LED drivers, AC-DC converters and controllers, DC-DC switching and linear voltage regulators, and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers.