New Automotive-Compliant Synchronous Buck Converter Supports High Efficiency Operation and Reduces EMI
Diodes Incorporated has added the newAP64060Qto its family of automotive-compliant DC-DC converters. The new AP64060Q is a 600mA synchronous buck converter device that incorporates a 600mΩ high-side power MOSFET along with a 300mΩ low-side power MOSFET so that high-efficiency step-down conversion (reaching 90%) can be delivered and with minimal PCB board space. With an input voltage range of 4.5V to 40V, this converter is targeted for use in automotive powertrains, infotainment systems, and instrumentation clusters, as well as vehicles’ exterior lighting.
This AP64060Q converter has a very low quiescent current (IQ), typically only 90μA, which translates into enhanced light load efficiency and features synchronous rectification that eliminates the need for an external Schottky diode, while the use of a peak current mode control and built-in loop compensation network further reduces the overall component count. It has an operating ambient temperature range of -40°C to +125°C and the proprietary gate driver scheme employed in the AP64060Q alleviates switching node ringing without impacting MOSFET turn-on and turn-off times.
Features
AEC-Q100 Qualified with the Following Results
Device Temperature Grade 1: -40°C to +125°C TA Range
Device HBM ESD Classification Level H2
Device CDM ESD Classification Level C5
VIN 4.5V to 40V
600mA Continuous Output Current
Less than 0.1% Output Ripple at 12V
90µA Low Quiescent Current (Pulse Frequency Modulation)
2MHz Switching Frequency
Supports Pulse Frequency Modulation (PFM)
专用门驱动程序设计Best EMI Reduction
Precision Enable Threshold to Adjust UVLO
Protection Circuitry
Applications
5V, 12V, and 24V Distributed Power Bus Supplies
eMeter
Automotive
White Goods and Small Home Appliances
FPGA, DSP, and ASIC Supplies
General Purpose Point of Load
Availability and Pricing
The AP64060Q converter is AEC-Q100 Grade 1 qualified and is available at $0.23 in 1000 piece quantities.