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New Double Data Rate Termination Regulators

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New Double Data Rate Termination Regulators

On semiconductor has strengthened its low drop-out (LDO) linear voltage regulator portfolio with the launch of new series of devices to support double data rate (DDR) memory. These devices are suitable for smartphones, computing and automotive applications.

A LDO regulator is a DC linear voltage regulator which can regulate the output voltage even when the supply voltage is very close to the output voltage. The advantages of a LDO regulator over other DC to DC regulators include the absence of switching noise (as no switching takes place), smaller device size (as neither large inductors nor transformers are needed) and greater design simplicity. The DDR on the other hand transfers data on both the rising and falling edges of the clock signal.

Referring to the press release, “The NCP51200, NCP51400, NCP51510 and NCP51199 feature built-in Power MOSFETS with under-voltage lockout mechanisms (UVLO), high speed differential amplifier, soft-start and on-chip thermal shutdown. The LDOs support DDR1, DDR2, DDR3, LPDDR3, DDR4 and LPDDR4 standards with termination voltages (VTT) down to 500 mV. Each device is capable of actively sourcing and sinking a full 2.0A when used with DDR4 and LPDDR4. Additionally, the NCP51145 can support up to 1.2A when used with DDR4 and LPDDR4. The NCP/NCV51199 can source and sink 2.0 A and 1.5 A currents for DDR2 and DDR3 respectively, while the NCP51200 and NCP51510 are specified for 3A peak current operation and support remote sensing.” The release also mentions that the LDOs can operate over a wide temperature range of -40 °C to +125 °C is specified, with an extended temperature range of +150 °C offered for automotive versions.

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“We now offer a comprehensive portfolio of game-changing devices for the entire DDR market that are suitable for new design projects, as well as serving as drop-in replacements for existing devices, but with the higher degree of performance to allow for future memory upgrades. The NCP51400 and NCP51510 are highly advanced ICs with the capability to support next generation DDR technologies as they arrive, while the NCP51145 combines superior performance with attractive price points. Furthermore, we have automotive qualified (AEC-Q100) versions to enable the latest Infotainment and Safety Systems to keep pace with the data demands new car customers expect” said Simon Keeton, vice president Integrated Circuit Products at ON Semiconductor.

According to the company, three different packaging is being offered for the expanded family of 15 NCP51xxx LDO solutions. These packages include an 8-pin SOIC-EP, an 8-pin 2×2 mm DFN and a 10-pin 3mm x3mm DFN package with price range starting from US$ 0.07 to US$ 0.195 per unit in 3000 unit volumes.

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