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MAX15158/MAX15158A
High-Voltage Multiphase Boost Controller
General Description
Benefits and Features
● Wide Operating Range
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.
• 8V to 76V Input Voltage Range for Booost
Configuration and -8V to -76V Input Voltage Range
for Inverting-Buck-Boost Configuration
• 3.3V to 60V Output Voltage Range on the Top of
Input Voltage
• 120kHz to 1MHz Switching Frequency Range
• -40°C to +125°C Temperature Range
• Single/Dual/Quad-Phase Operation
• Active Phase Current Balance Control
● Integration Reduces Design Footprint
• Internal LDO for Bias Supply Generation
• Multiphase Multiple Controller Synchronization and
Interleave
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.
• Output Voltage Sense Level Shifter
● Robust Fault Protection Improves Quality and
Reliability
• Adjustable Input Undervoltage Lockout
• Adjustable Cycle-by-Cycle Peak Current Limit
and Fast Overcurrent Protection
• Selectable Feedback Overvoltage Protection
• Thermal Shutdown
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 control-
ler is also protected against output overvoltage, input
undervoltage and thermal shutdown.
● Flexible and Simple System Design
• Adjustable Slope Compensation
• Low-Side MOSFET Gate Monitoring for Accurate
Current Sensing
The device is available in 5mm x 5mm, 32-pin TQFN
package and supports -40°C to 125°C junction temperature
range.
• Discontinuous-Conduction-Mode Operation is
Supported when Using a Diode in Place of the
High-Side MOSFET
Applications
● Communication
● Industrial
● Small 5mm x 5mm TQFN package, 0.5mm pitch
Ordering Information appears at end of data sheet.
● Automotive
● Multiphase Boost
19-100365; Rev 2; 11/19