MAX15158ZATJ+ Analog Devices

EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX15158Z High-Voltage Multiphase Boost Controller General Description Benefits and Features MAX15158Z is a high-voltage multiphase boost controller Wide Operating Range designed to support up to two MOSFET drivers and four 8V to 76V Input Voltage Range for Booost external MOSFETs in single-phase or dual-phase boost/ Configuration and -8V to -76V Input Voltage Range for Inverting-Buck-Boost Configuration inverting-buck-boost configurations. Two devices can be stacked up for quad-phase operation. The output voltage 3.3V to 60V Output Voltage Range on the Top of Input Voltage of MAX15158Z can be dynamically set through the 1V to 2.2V reference input (REFIN) for modular design support. 120kHz to 1MHz Switching Frequency Range -40C to +125C Temperature Range The switching frequency is controlled either through Single/Dual/Quad-Phase Operation an external resistor setting the internal oscillator or by Active Phase Current Balance Control synchronizing the regulator to an external clock. The Integration Reduces Design Footprint device is designed to support 120kHz to 1MHz switching Internal LDO for Bias Supply Generation frequencies. The controller has a dedicated enable/input Multiphase Multiple Controller Synchronization and undervoltage-lockout (EN/UVLO) pin to configure for flex- Interleave ible power sequencing. Output Voltage Sense Level Shifter MAX15158Z has a dedicated RAMP pin to adjust inter- Robust Fault Protection Improves Quality and nal slope compensation. The device features adjustable Reliability overcurrent protection. The device incorporates current Adjustable Input Undervoltage Lockout sense amplifiers to accurately measure the current of Adjustable Cycle-by-Cycle Peak Current Limit and each phase across external sense resistors to implement Fast Overcurrent Protection accurate phase current sharing. The controller is also pro- Selectable Feedback Overvoltage Protection tected against output overvoltage, input undervoltage and Thermal Shutdown thermal shutdown. Flexible and Simple System Design The device is available in 5mm x 5mm, 32-pin TQFN Adjustable Slope Compensation package and supports -40C to 125C junction tempera- Low-Side MOSFET Gate Monitoring for Accurate ture range. Current Sensing Discontinuous-Conduction-Mode Operation is Applications Supported when Using a Diode in Place of the Communication High-Side MOSFET Industrial Small 5mm x 5mm TQFN Package, 0.5mm Pitch Automotive Multiphase Boost Ordering Information appears at end of data sheet. 19-100586 Rev 0 6/19MAX15158Z High-Voltage Multiphase Boost Controller Typical Application Circuit VIN- = -8V TO -65V 3.3V TO 60V OUTPUT MAX15158Z V V IN- IN- EN/UVLO RAMP DH1 VIN- MOSFET DL1 DRIVER V IN- 8.5V TO 14V BIA S W.R.T. V DRV IN- DLFB1 REFIN 1V TO 2.2V DAC W.R.T. V IN- POWER STAGE SYSTEM CLK FREQ/CLK CSP1 CURRENT SENSE CSN1 COMP VIN- VIN- V IN- VIN- V V IN- IN- OPEN-DRAIN POWER GOOD PGOOD DH2 MOSFET DL2 DRIVER SYNC MULTIPHASE SUPPORT/SYNCHRONIZATION CSIO DLFB2 SS POWER STAGE V IN- CSP2 CURRENT SENSE CSN2 BIAS VIN- VIN- ILIM OUTN OUTP OVP FB GND VIN- V IN- Maxim Integrated 2 www.maximintegrated.com