| Integrated Circuits (ICs) | 4 | Active | |
| PMIC | 9 | Active | |
LTC3776Dual 2-Phase, No RSENSE™,Synchronous Controller for DDR/QDR Memory Termination | Voltage Regulators - Special Purpose | 5 | Active | The LTC3776 is a 2-phase dual output synchronous stepdown switching regulator controller for DDR/QDR memory termination applications. The second controller regulates its output voltage to 1/2 VREFwhile providing symmetrical source and sink output current capability.The No RSENSEconstant frequency current mode architecture eliminates the need for sense resistors and improves efficiency. Power loss and noise due to the ESR of the input capacitance are minimized by operating the two controllers out of phase.The switching frequency can be programmed up to 750kHz, allowing the use of small surface mount inductors and capacitors. For noise sensitive applications, the LTC3776 switching frequency can be externally synchronized from 250kHz to 850kHz, or can be enabled for spread spectrum operation. Forced continuous operation reduces noise and RF interference. Soft-start for VOUT1is provided internally and can be extended using an external capacitor.The LTC3776 is available in the tiny thermally enhanced (4mm × 4mm) QFN package or 24-lead SSOP narrow package.Protected by U.S. Patents including 5481178, 5929620, 6144194, 6580258, 6304066, 6611131, 6498466, patent pending on Spread Spectrum.ApplicationsDDR, DDR II and QDR MemorySSTL, HSTL Termination SuppliesServers, RAID SystemsDistributed DC Power Systems |
| PMIC | 2 | Active | |
| Integrated Circuits (ICs) | 2 | Active | |
| Integrated Circuits (ICs) | 6 | Active | |
| PMIC | 11 | Active | |
| Power Management (PMIC) | 8 | Active | |
| DC DC Switching Controllers | 16 | Active | |
LTC378510V, High Efficiency, Buck-Boost Controller with Power Good | Integrated Circuits (ICs) | 8 | Active | The LTC3785 is a high power synchronous buck-boost controller that drives all N-channel power MOSFETs from input voltages above, below and equal to the output voltage. With an input range of 2.7V to 10V, the LTC3785 is well suited for a wide variety of single or dual cell Li-Ion or multicell alkaline/NiMH applications.The operating frequency can be programmed from 100kHz to 1MHz. The soft-start time and current limit are also programmable. The soft-start capacitor doubles as the fault timer which can program the IC to latch off or recycle after a determined off time. Burst Mode operation is user controlled and can be enabled by driving the MODE pin high.Protection features include foldback current limit, shortcircuit and overvoltage protection.Power GoodLTC3785NoLTC3785-1YesApplicationsPalmtop ComputersHandheld InstrumentsWireless ModemsCellular Telephones |
