Analog Devices Inc./Maxim Integrated

The LT8652S is a dual step-down regulator that delivers up to 8.5A of continuous current from both channels and supports loads up to 12A from each channel. The LT8652S uses second generation Silent Switcher technology including integrated bypass capacitors to deliver a high frequency, high efficiency, small solution with excellent EMI performance. The LT8652S is ideal for noise sensitive applications such as PLLs and high bandwidth data and communications systems.The fast, clean, low overshoot switching edges enable high efficiency operation even at high switching frequencies, enabling a wide control loop bandwidth for fast transient response. Output current monitoring and limiting allows inductors to be selected for the maximum output current in a given application. Differential output voltage sensing provides accurate voltage regulation at the point of load for high current applications. The two channels can be combined to deliver 17A, and two LT8652S ICs can be combined for a 4-phase, 34A supply.ApplicationsServer Power ApplicationsGeneral Purpose Step-Down

The LT8672 is an active rectifier controller for reverse input protection. It drives an external N-channel MOSFET to replace a power Schottky diode. Its very low quiescent current and fast transient response meet the tough requirements in automotive applications where AC input signals of up to 100kHz are present. These signals are rectified with minimum power dissipation on the external FET, simplifying thermal management on the PCB.With a drop of only 20mV, the LT8672 solution eases the minimum input voltage requirement during cold crank and start-stop, allowing simpler and more efficient circuits. If the input power source fails or is shorted, a fast turn-off minimizes reverse current transients. An available shutdown mode reduces the quiescent current to 3.5μA.An integrated auxiliary boost regulator provides the required boost voltage to turn the external FET fully on. A power good pin signals when the external FET is ready to take load current.ApplicationsAutomotive Battery ProtectionIndustrial SuppliesPortable Instrumentation

The LT8685S is a highly flexible, four channel, current mode, monolithic regulator able to power a wide range of automotive and industrial applications while occupying minimal board space.The LT8685S combines two 42V capable 2.5A buck regulators with two 8V capable 4A buck regulators. The two 42V regulators may be combined to provide up to 5A of output current using a single inductor. Similarly, the two 8V regulators may be combined to provide up to 8A of output current using a single inductor. Individual channel enable, track/soft-start and power good pins provide flexible power supply sequencing and control. The LT8685S features a Silent Switcher 2 architecture, plus selectable spread spectrum mode, to provide ultralow EMI/EMC emissions while delivering high efficiency at high switching frequencies.The LT8685S incorporates thermal shutdown and individual channel cycle-by-cycle current limit for short circuit protection and robust operation.APPLICATIONSAutomotive SystemsIndustrial Controls and Power Supplies

The LT8686S is a highly flexible, four-channel, current mode, monolithic regulator able to power a wide range of automotive and industrial applications while occupying minimal board space.The LT8686S combines two 42V capable 2A buck regulators with two 8V capable 2A buck regulators. The two 42V regulators may be combined to provide up to 4A of output current using a single inductor. Similarly, the two 8V regulators may be combined to provide up to 4A of output current using a single inductor. Individual channel enable, track/soft-start and power good pins provide flexible power supply sequencing and control. The LT8686S features a Silent Switcher 2 architecture, plus selectable spread spectrum mode, to provide ultralow EMI/EMC emissions while delivering high efficiency at high switching frequencies.The LT8686S incorporates thermal shutdown and individual channel cycle-by-cycle current limit for short-circuit protection and robust operation.APPLICATIONSAutomotive SystemsIndustrial Controls and Power Supplies

The LT8692S is a quad channel step-down, current mode, monolithic buck switching regulator. All regulators are synchronized to a single oscillator with a fixed frequency of 2MHz. The "S" at the end of the part number refers to the second-generation Silent Switcher®technology which includes integrated bypass capacitor to deliver a high frequency and small solution size with excellent EMI performance. The integrated capacitors also make it easier to achieve the advertised EMI performance by reducing layout sensitivity. This performance makes the LT8692S ideal for noise sensitive applications and environments. The highly integrated four-channel solution saves space and simplifies the design of compact boards.Burst Mode operation enables ultralow standby current consumption, forced continuous mode can be used to control frequency harmonics across the entire output load range or spread spectrum operation can further reduce EMI emissions.The fast, clean, low overshoot switching edges enable high efficiency operation at high switching frequencies, leading to a small solution size with wide control loop bandwidth for fast transient response.APPLICATIONSCamera ModulesAutomotive SystemsIndustrial Controls and Power Supplies

The LT8705A is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the LT8705A is compatible with most solar, automotive, telecom and battery-powered systems. The LT8705A is an improved pin compatible version of the LT8705 and is recommended for new designs. See LT8705A vs LT8705 in the Applications Information section for more information.The LT8705A includes a MODE pin to select among Burst Mode®operation, discontinuous or continuous conduction mode at light loads. Additional features include a 3.3V/12mA LDO, a synchronizable fixed operating frequency, and onboard gate drivers.LT8705LT8705AImproved, pin-to-pin compatible version of LT8705. Recommended for all new designsApplicationsHigh Voltage Buck-Boost ConvertersInput or Output Current Limited Converters

The LT8705A is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8V to 80V input and 1.3V to 80V output range, the LT8705A is compatible with most solar, automotive, telecom and battery-powered systems. The LT8705A is an improved pin compatible version of the LT8705 and is recommended for new designs. See LT8705A vs LT8705 in the Applications Information section for more information.The LT8705A includes a MODE pin to select among Burst Mode®operation, discontinuous or continuous conduction mode at light loads. Additional features include a 3.3V/12mA LDO, a synchronizable fixed operating frequency, and onboard gate drivers.LT8705LT8705AImproved, pin-to-pin compatible version of LT8705. Recommended for all new designsApplicationsHigh Voltage Buck-Boost ConvertersInput or Output Current Limited Converters