The ZSPM9000 DrMOS is a fully optimized, ultracompact, integrated MOSFET plus driver powerstage solution for high-current, high-frequency, synchronous buck DC-DC applications. The device incorporates a driver IC, two power MOSFETs, and a bootstrap Schottky diode in a thermally enhanced, ultra-compact 6mmx6mm PQFN40 package.

With an integrated approach, the ZSPM9000’s complete switching power stage is optimized for driver and MOSFET dynamic performance, system inductance, and power MOSFET RDS(ON). It uses innovative high-performance MOSFET technology, which dramatically reduces switch ringing, eliminating the snubber circuit in most buck converter applications.

An innovative driver IC with reduced dead times and propagation delays further enhances performance. An internal 12V to 5V linear regulator enables the ZSPM9000 to operate from a single 12V supply. A thermal warning function warns of potential overtemperature situations. The ZSPM9000 also incorporates features such as Skip Mode (SMOD) for improved light-load efficiency with a tri-state 3.3V pulse-width modulation (PWM) input for compatibility with a wide range of PWM controllers.

The ZSPM9000 DrMOS is ideally compatible with ZMDI’s ZSPM1000, a leading-edge configurable digital power-management system controller for nonisolated point-of-load (POL) supplies.

Features

• Based on the Intel® 4.0 DrMOS standard
• Internal 12V to 5V linear regulator (LDO)
• High-current handling: up to 50A
• High-performance copper-clip package
• Tri-state 3.3V PWM input driver
• Skip Mode (low-side gate turn-off) input (SMOD#)
• Warning flag for over-temperature conditions
• Driver output disable function (DISB# pin)
• Internal pull-up and pull-down for SMOD# andDISB# inputs, respectively
• Integrated Schottky diode technology in thelow-side MOSFET
• Integrated bootstrap Schottky diode
• Adaptive gate drive timing for shoot-throughprotection
• Under-voltage lockout (UVLO)
• Optimized for switching frequencies up to 1MHz

Benefits

• Fully optimized system efficiency: >93% peak
• Clean switching waveforms with minimal ringing
• 72% space-saving compared to conventional discrete solutions
• Optimized for use with ZMDI's ZSPM1000 true digital PWM controller

Available Support

• ZSPM8000-KIT: Evaluation Kit for ZSPM9000and ZSPM1000

Physical Characteristics

• Operation temperature: -40°C to +125°C
• VIN: 8V to 15V (typical 12V)
• IOUT: 40A (average), 50A (maximum)
• Low-profile SMD package: 6mmx6mm PQFN40
• ZMDI green packaging and RoHS compliant