125V/3A, High-Speed, Half-Bridge MOSFET Drivers

Thermally Enhanced, 8-Pin SO Package Handles Up to 1.9W Power Dissipation at +70°C Ambient Temperature

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The MAX15018A/MAX15018B/MAX15019A/MAX15019B high-frequency, 125V half-bridge, n-channel MOSFET drivers drive high- and low-side MOSFETs in high-voltage applications. These drivers are independently controlled, and their 35ns (typ) propagation delay, from input to output, are matched to within 2ns (typ). The high-voltage operation with very low and matched propagation delay between drivers, and high source-/sink-current capabilities in a thermally enhanced package make these devices suitable for high-power, high-frequency telecom power converters. The 125V maximum input voltage provides plenty of margin over the 100V input transient requirement of telecom standards. A reliable on-chip bootstrap diode connected between VDD and BST eliminates the need for an external discrete diode.

The MAX15018A/MAX15019A both offer noninverting drivers. The MAX15018B/MAX15019B offer a noninverting high-side driver and an inverting low-side driver (see the Selector Guide in the full data sheet). The MAX15018_ feature CMOS (VDD/2) logic inputs. The MAX15019_ feature TTL-logic inputs. The drivers are available in the industry standard 8-pin SO footprint and pin configuration with a thermally enhanced 8-pin SO package. All devices operate over the -40°C to +125°C automotive temperature range.
MAX15018, MAX15019: Typical Operating Circuit MAX15018, MAX15019: Typical Operating Circuit Enlarge+

Key Features

  • HIP2100IB/HIP2101IB Pin Compatible (MAX15018A/MAX15019A)
  • Up to 125V VIN Operation
  • 8V to 12.6V VDD Input Supply Range
  • 3A Peak Source and Sink Current
  • 35ns Propagation Delay
  • Guaranteed 8ns or Less Propagation Delay Matching Between High- and Low-Side Drivers
  • Both Noninverting/Noninverting and Noninverting/Inverting Logic-Input Versions Available
  • Up to 15V Logic Inputs, Independent of VDD Supply Voltage
  • Low 8pF Input Capacitance
  • Available in CMOS (VDD/2) or TTL Logic-Level Inputs with Hysteresis
  • Available in a Space-Saving, Thermally Enhanced 8-Pin SO-EP Package


  • Half-Bridge, Full-Bridge, and Two-Switch Forward Converters
  • Motor Control
  • Power-Supply Modules
  • Synchronous Buck DC-to-DC Converters
  • Telecom Power Supplies

See parametric specs for Full/Half-Bridge MOSFET Drivers (17)

Part NumberDriverDriverHigh Side Voltage
Logic InputOper. Temp.
High SideLow SidetyppeaktypSee Notes
MAX15018A Non-InvertingNon-Inverting1258.0 to 12.63 / 335CMOS-40 to +125
$1.98 @1k
MAX15018B InvertingCMOS
$1.80 @1k
MAX15019A Non-InvertingTTL
$2.48 @1k
MAX15019B InvertingTTL
$1.94 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Request Reliability Report for: MAX15018 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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