Analog Devices Inc./Maxim Integrated

The MAX15157D is the evolution of the MAX15157B HV buck controller family. The MAX15157D implements a single-phase, PWM valley current-mode controller and drives two external power MOSFETs in a buck configuration. The output voltage can be dynamically set through the 1V to 2.2V reference input (REFIN) for modular design support.The switching frequency is controlled either through external resistor that sets the internal oscillator, or by synchronizing the regulator to an external clock. The device is designed to support 60kHz to 1MHz switching frequencies. The controller has a dedicated undervoltage lockout pin (UVLO) and an accurate enable input threshold for flexible power sequence configuration. The controller also has multiple fault-protection circuits to protect against overcurrent (OCP) adjustable through the ILIM pin, output overvoltage (OVP), input undervoltage (UVLO), and thermal shutdown.The MAX15157D features an adjustable internal compensation ramp. The device incorporates an accurate current-sense amplifier that reports output current through an analog output (IMON).The MAX15157D features lossless LS FET RDSONor resistor current sensing. The device allows programmable single-phase or multiphase operation, up to eight interleaved phases, and implements an accurate current balance scheme. The MAX15157D can operate with either discrete inductors or coupled inductors in case of multiphase operation.The device is available in a 5mm × 5mm, 32-pin TQFN package and supports a -40°C to +125°C junction temperature range.ApplicationsData CenterIndustrialMultiphase Buck

MAX15158/MAX15158A is a high-voltage multiphase boost controller designed to support up to two MOSFET drivers and four external MOSFETs in single-phase or dual-phase boost/inverting-buck-boost configurations. Two devices can be stacked up for quad-phase operation. The output voltage of MAX15158 can be dynamically set through the 1V to 2.2V reference input (REFIN) for modular design support. For MAX15158A the REFIN pin is removed, and the internal 2.0V reference voltage is selected by default.The switching frequency is controlled either through an external resistor setting the internal oscillator or by synchronizing the regulator to an external clock. The device is designed to support 120kHz to 1MHz switching frequencies. The controller has a dedicated enable/input undervoltage-lockout (EN/UVLO) pin to configure for flexible power sequencing.MAX15158/MAX15158A has a dedicated RAMP pin to adjust internal slope compensation. The device features adjustable overcurrent protection. The device incorporates current sense amplifiers to accurately measure the current of each phase across external sense resistors to implement accurate phase current sharing. The controller is also protected against output overvoltage, input undervoltage and thermal shutdown.The device is available in 5mm x 5mm, 32-pin TQFN package and supports -40°C to 125°C junction temperature range.ApplicationsAutomotiveCommunicationIndustrial

MAX15158Z is a high-voltage multiphase boost controller designed to support up to two MOSFET drivers and four external MOSFETs in single-phase or dual-phase boost/inverting-buck-boost configurations. Two devices can be stacked up for quad-phase operation. The output voltage of MAX15158Z can be dynamically set through the 1V to 2.2V reference input (REFIN) for modular design support.The switching frequency is controlled either through an external resistor setting the internal oscillator or by synchronizing the regulator to an external clock. The device is designed to support 120kHz to 1MHz switching frequencies. The controller has a dedicated enable/input undervoltage-lockout (EN/UVLO) pin to configure for flexible power sequencing.MAX15158Z has a dedicated RAMP pin to adjust internal slope compensation. The device features adjustable overcurrent protection. The device incorporates current sense amplifiers to accurately measure the current of each phase across external sense resistors to implement accurate phase current sharing. The controller is also protected against output overvoltage, input undervoltage and thermal shutdown.The device is available in 5mm x 5mm, 32-pin TQFN package and supports -40°C to 125°C junction temperature range.ApplicationsAutomotiveCommunicationIndustrialMultiphase Boost

The MAX15159, a high-voltage, multiphase boost/flyback controller with enhanced low-side MOSFET gate driver capability, is designed to support single-phase or dual-phase boost/flyback configurations. Two devices can be stacked up for triple-phase or quad-phase operation. The output voltage can be dynamically set through the 1.5V to 2.2V reference input (REFIN) for modular design support.The switching frequency is controlled either through an external resistor setting the internal oscillator or by synchronizing the regulator to an external clock. The device is designed to support 120kHz to 1MHz switching frequencies. When two devices are stacked up as controller-target for triple-phase or quad-phase operation, the SYNC pins of two devices are connected to ensure clock synchronization and phase interleaving. The controller has a dedicated enable/input undervoltage lockout (EN/UVLO) pin to configure for flexible power sequencing.The MAX15159 has a dedicated RAMP pin to adjust internal slope compensation. The device features adjustable overcurrent protection through the dedicated ILIM pin. The device incorporates current-sense amplifiers to accurately measure the current of each phase across external sense resistors to implement accurate phase current sharing. The controller is also protected against output overvoltage, input undervoltage, and thermal shutdown.APPLICATIONSCommunicationIndustrialMultiphase FlybackIEEE802.3bt Powered Device

The MAX15162/MAX15162A devices are dual-channel circuit-breaker ICs. The devices integrate a dual-channel controller with dual 140mΩ (in WLP, 180mΩ in TQFN) power MOSFETs and electronic circuit-breaker protection in a single package.These devices feature constant power control during startup to keep the MOSFET operating under Safe Operating Area (SOA). The devices provide robust overcurrent protection with programmable current-limit level, and adjustable overcurrent shutdown delay for better immunity against system noises and load transient. The current monitoring pins provide a current sense accuracy of ±3% for each channel. When there is short-circuit at the output, a fast current limit comparator turns off MOSFETs within 200ns to isolate the load from the input. During a fault condition, the MAX15162A enters auto-retry mode and the MAX15162 enters latch off mode. For both devices, the ALRT pin asserts a fault indication. The MAX15162/MAX15162A can be configured as two independent channels or two parallel channels for one common output.The devices feature a number of protection features including; IN-to-OUT short-circuit protection, output short-circuit protection, startup watchdog timer, input undervoltage lockout and internal overtemperature protection.The MAX15162/MAX15162A are available in a 24-pin, 4mm x 4mm TQFN package and 16-bump, 2mm x 2mm WLP package and are rated over the -40°C to +105°C operation temperature range.ApplicationsCommunicationIndustrialRadio Access Point System