Analog Devices Inc./Maxim Integrated

The MAX16550A/MAX16550B are protection ICs with an integrated low-resistance MOSFET and lossless current-sense circuitry featuring SMBus/PMBus™ control and reporting. The ICs are designed to provide the optimum solution for distribution, control, monitoring and protection of the system’s 12V power supply. An internal LDO provides the supply voltage for the protection IC.If no fault is detected, the ICs initiate the startup and have been designed to provide controlled, monotonic startup. Programmable soft-start ramp and delay is implemented to limit the in-rush current during startup.The ICs monitor the current and voltage of the 12V system power rail and provide multiple levels of protection with fast turn-off if a fault is detected.Maxim’s patented, lossless current sense provides high accuracy current sensing over load and temperature, improving overall system-energy efficiency, and reducing dissipation.If, at any time, the output voltage falls below the programmable output undervoltage-lockout threshold, the PWRGD signal is asserted low. If at any time the input voltage falls below the programmable input undervoltage-lockout threshold, the PWRGD signal is asserted low.See the Basic Application Circuit utilizing the MAX16550A/ MAX16550B ICs.ApplicationsCircuit Breaker/E-Fuse, Hot SwapIntegrated Protection IC on 12VServers, Networking, Storage, Communication Equipment and AC/DC Power Supplies

The MAX16550A/MAX16550B are protection ICs with an integrated low-resistance MOSFET and lossless current-sense circuitry featuring SMBus/PMBus™ control and reporting. The ICs are designed to provide the optimum solution for distribution, control, monitoring and protection of the system’s 12V power supply. An internal LDO provides the supply voltage for the protection IC.If no fault is detected, the ICs initiate the startup and have been designed to provide controlled, monotonic startup. Programmable soft-start ramp and delay is implemented to limit the in-rush current during startup.The ICs monitor the current and voltage of the 12V system power rail and provide multiple levels of protection with fast turn-off if a fault is detected.Maxim’s patented, lossless current sense provides high accuracy current sensing over load and temperature, improving overall system-energy efficiency, and reducing dissipation.If, at any time, the output voltage falls below the programmable output undervoltage-lockout threshold, the PWRGD signal is asserted low. If at any time the input voltage falls below the programmable input undervoltage-lockout threshold, the PWRGD signal is asserted low.See the Basic Application Circuit utilizing the MAX16550A/ MAX16550B ICs.ApplicationsCircuit Breaker/E-Fuse, Hot SwapIntegrated Protection IC on 12VServers, Networking, Storage, Communication Equipment and AC/DC Power Supplies

The MAX1658/MAX1659 linear regulators maximize battery life by combining ultra-low supply currents and low dropout voltages. They feature Dual Mode™ operation, which presets the output to 3.3V (MAX1658) or 5V (MAX1659), or permits it to be adjusted between 1.25V and 16V. The regulator supplies up to 350mA, with a typical dropout of 650mV for the MAX1658 and 490mV for the MAX1659. With their p-channel MOSFET pass transistor, these devices maintain a low quiescent current from zero output current to the full 350mA, even in dropout. They support input voltages ranging from 2.7V to 16.5V.The MAX1658/MAX1659 feature a 1µA shutdown mode, reverse battery protection, short-circuit protection, and thermal shutdown. They are available in a special high-power (1.2W), 8-pin SO package designed specifically for compact applications.ApplicationsCell PhonesDigital Cordless PhonesElectronic PlannersHandheld Instruments (PDAs, Palmtops)ModemsPalmtop ComputersPCMCIA CardsPCS Phones

The MAX16602 IC provides a high-density, flexible and scalable solution to power AI cores or Intel®VR13.HC server CPUs. This Maxim controller IC employs coupled inductors and smart power-stage ICs to implement high-efficiency core regulators with enhanced transient response and low quiescent current. An additional single-phase output generates the VSA rail in the system using a single-phase smart power stage. The complete circuit is a highly efficient (8+1) multiphase synchronous buck converter with extensive status and parameter-measurement features. The controller also supports PWM paralleling to control up to 16 phases. A single, scalable PCB design with appropriate smart power stage IC selection can be used to produce regulators with a wide range of current ratings.The IC’s architecture simplifies design, reduces component count, enables advanced power management and telemetry, and increases energy savings over the full load range. Autonomous phase-shedding is implemented to maintain high efficiency across the entire load range.Regulator parameters for protection and shutdown can be set and monitored through the serial interface using the PMBus™ protocol. Power-stage faults, input and output voltage, input and output current, input power, and the temperature of each smart power-stage IC are readable over the serial interface. The critical fault retention feature prevents exothermic events after a power-device fault. The smart power-stage ICs communicate with the controller IC through analog and digital signals that are also readable through the registers in the controller IC. Preset and user configurations are programmed in nonvolatile memory (NVM). MTP-programmable NVM circuits allow for seven field modifications.An integrated 3.3V to 1.8V regulator supports both MAX16602 and power-stage ICs with 1.8V bias supplies. SNS_PS_BIAS monitoring also allows for flexible bias and sequencing.The MAX16602 is available in a 56-pin, 7mm x 7mm QFN package.ApplicationsHigh-Current Multiphase Voltage Regulators- AI Cores and XPUs- VR13.HC CPUs and Memory- Graphics Processors- Networking ASICsServers and WorkstationsEnterprise StorageCommunications and Networking Equipment Supply

The MAX16610/MAX16610A ICs are highly integrated, scalable, controllers for a switched tank converter (STC) topology. The STC provides highly efficient zero-current switching (ZCS) voltage conversion from a 60V–40V input bus to an intermediate bus voltage. The intermediate bus voltage is unregulated and is approximately a quarter of the input voltage.The 4:1 STC topology has 10 FETs that need to be driven, with only 3 of the FETs connected to ground. The MAX16610/MAX16610A provide an extremely dense solution with integrated drivers and generation of floating supplies.An adaptation algorithm tunes the STC on-times to maintain ZCS, regardless of variations in and tolerances of the STC components (e.g., temperature coefficient, aging, and voltage derating). With the adaptation algorithm, a MAX16610/MAX16610A-controlled STC can use Class II capacitors in the resonant tanks to save on cost and improve efficiency compared to Class I capacitor designs.Multiple fault protection features prevent damage to the STC converter and downstream components.ApplicationsDDR MemoryHigh-Power VR13.HC CPUsMachine Learning ASICs and Accelerator CardsNetworking ASICs