DC-DCコンバータ
製品 (770)
XL4016 - 12A 180kHz 40V Buck Converter | XLSEMI
The XLSEMI XL4016 is a fixed-frequency PWM buck DC-DC converter capable of driving a 12 A load from a 40 V-class input, with a 180 kHz switching frequency and an adjustable step-down output. It is supplied in a 5-pin package and uses internal frequency compensation and a fixed-frequency oscillator to simplify external circuitry. The verified manufacturer description emphasizes high efficiency, low ripple, and good line and load regulation. Some distributor records identify the device as an 8 A converter, so the applicable current limit must be confirmed against the manufacturer datasheet and the thermal design. A buck converter is a switching voltage-regulator category that converts a higher input voltage into a lower output voltage by repeatedly switching an inductor, diode, capacitor, and control loop. The XL4016 belongs to the DC-DC converter and power-management IC hierarchy and is suitable for equipment requiring a regulated intermediate rail from a higher-voltage supply. Its fixed 180 kHz PWM operation provides a defined switching point for component selection and electromagnetic-layout planning. Key features include a 180 kHz fixed-frequency PWM control scheme, internal frequency compensation, low external-component count, and support for a nominal 12 A load according to the manufacturer datasheet description. The converter is designed for step-down operation and is intended to provide good line and load regulation. Because the verified source set contains conflicting 8 A and 12 A descriptions, the target current rating must be treated as source-dependent and checked against the exact manufacturer PDF before production release. The XL4016's architecture is appropriate for high-current DC distribution where the input is above the desired output voltage. Designers should select the inductor, catch diode or synchronous switching arrangement, input capacitor, output capacitor, and feedback divider according to the manufacturer recommendations. The fixed-frequency architecture simplifies control-loop compensation, while PCB inductance and switching-node layout remain critical at high current. Typical applications include 12 V to 5 V or 12 V to 3.3 V conversion, laboratory and workshop power supplies, LED drivers, battery-charging systems, 24 V industrial rails, and embedded DC-DC modules. The converter's high-current capability can reduce the number of parallel stages in a power tree, subject to package heating and available copper area. A primary design consideration is thermal management. Estimated power loss must be checked at the actual input voltage, output voltage, switching frequency, output current, efficiency curve, diode forward drop, inductor resistance, and ambient temperature. Do not rely only on the nominal 12 A headline; validate current capability with the manufacturer electrical characteristics and PCB thermal constraints. This product page synthesizes the verified manufacturer description, datasheet links, application guidance, and strict data-quality notes. It distinguishes verified facts from unresolved current-rating and packaging information rather than inventing missing specifications. Use the official XL4016 datasheet as the controlling reference during schematic capture, PCB design, qualification, and production purchasing.
XL6009 - 400kHz 60V 4A Boost/Buck-Boost/Inverting DC/DC Converter | XLSEMI
The XLSEMI XL6009 is a 400kHz, 60V, 4A switching current boost / buck-boost / inverting DC/DC converter housed in a TO263-5L (DPAK-style) surface-mount package. The XL6009 uses a fixed-frequency current-mode architecture with a built-in N-channel power MOSFET, accepts a wide 3V to 32V input range, and is configurable as a boost, flyback, SEPIC, or inverting converter, with adjustable output up to 60V at up to 4A of switch current per the manufacturer datasheet. What is a boost DC/DC converter? A boost (step-up) DC/DC converter is a switching power supply topology that raises a lower input voltage to a higher, regulated output voltage using an inductor, a power switch, a diode, and output capacitance. It sits within the SMPS (switched-mode power supply) family, alongside buck (step-down) and buck-boost (step-up/step-down) topologies, and belongs to the broader class of PMIC (power management IC) devices used whenever a system rail must be generated locally from a non-regulated source. Key features include a 400kHz fixed switching frequency that allows the use of small external inductors and capacitors, 4A internal switch current capability, an internal 60V N-MOSFET, current-mode control for simple loop compensation, and thermal-shutdown protection. The XL6009's wide input range makes it popular for battery-powered, automotive, solar, and industrial applications where upstream rails vary substantially. The XL6009's current-mode control provides cycle-by-cycle current limiting, inherent input-voltage feed-forward, and a simplified single-loop compensation strategy versus older voltage-mode designs. The high-side drive and 60V switch rating let the IC tolerate harsh load-dump transients seen in automotive systems without external protection components. Typical applications include boost converters from 3-32V to 5-35V (the ubiquitous XL6009 module), buck-boost adapters for solar/battery systems, negative-voltage bias supplies for op-amps and LCDs, SEPIC converters for LED driver front-ends, and high-current point-of-load rails in industrial controls and hobby electronics. When designing with this device, choose an inductor rated for at least 4A saturation current and COUT/RC filter sized for the actual switching frequency (400kHz). The feedback resistor divider must use 1% parts to maintain set-point accuracy, and the IC's exposed pad should be soldered to a copper pour for thermal dissipation at full load. This page synthesizes distributor pricing, drop-in alternatives from the same TO263-5L family, and practical design notes not found on stock datasheet portals.