Power
2MHz Synchronous DC-DC Converters Enable All-Ceramic-Capacitor Designs
Maxim has introduced the MAX15038/MAX15039, small, synchronous DC-DC converters that deliver up to 4A and 6A of output current, respectively. Operating from a 500kHz to 2MHz switching frequency, these devices enable the implementation of compact, all-ceramic-capacitor designs. User-selectable, fixed-frequency PWM, and pulse-skipping modes ensure high efficiency during light loads, while integrated low-resistance MOSFETs maximize conversion efficiency at heavy loads.
In aThe MAX15038/MAX15039 integrate a high-bandwidth (28MHz) voltage-error amplifier, which can be combined with a voltage-mode control architecture to enable the implementation of type III compensation. This topology maximizes bandwidth, improves transient response, and minimizes output capacitance, thus allowing an all-ceramic-capacitor design.
These devices operate from a 2.9V to 5.5V supply, and provide ±1% output-voltage accuracy over line, load, and temperature variations. Other features include two 3-state inputs to select one of nine preset outputs, an external reference input for tracking applications, programmable soft-start, and the ability to sink and source current at the output for memory applications. Additionally, the output voltage can be adjusted to any customer value with two external resistors.
Featured products
MAX17793
Analog Devices Inc.
3V to 80V, 3A, High-Efficiency, Synchronous Step-Down DC-DC Converter
| SKU: | MAX17793 |
|---|---|
| Stock: | 9316 |
| Cost: | $3.64 |
MAX22516
Analog Devices Inc.
IO-Link Data Link Controller with Transceiver and Integrated DC-DC
| SKU: | MAX22516 |
|---|---|
| Stock: | 8000 |
| Cost: | $5.42 |
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