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Many power-supply ICs are designed to work with a wide range of applications. However, some applications require precisely controlled voltages at high currents, calling for a more tailor-made power-supply solution.

Optical transceivers in data centers, for instance, require a unique power supply. Load transients must be regulated quickly to ensure that the supply voltage deviates only slightly from its nominal value. This is also the case for DRAM and other memory chips, which are evolving to use lower supply voltages. All in all, meeting these requirements is a challenging task for a power supply. Figure 1 shows the application of an optical transceiver in a wireless communication system or data center.