Smart power stage module integrates a gate driver IC, bootstrap Schottky diode, two power MOSFETs, and a thermal monitor for synchronous buck DC-DC converters. The module supports 60 A current handling at 300 kHz and operates from a 4.5 V to 16 V output-stage supply with 4.5 V to 5.5 V VCC and PVCC supplies. Its 3-state 3.3 V PWM input, Auto DCM control through ZCD#, thermal monitor, programmable thermal shutdown, and HS-short fault shutdown support multiphase voltage-regulator designs. The 31-lead clip-bond PQFN package measures 5 mm by 5 mm and uses PowerTrench and SyncFET MOSFET technology. The device is rated for a -40 °C to +125 °C operating junction temperature range and is RoHS compliant with green packaging.
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| Current rating | 60A |
| Output current at 1 MHz | 55A |
| Output stage supply voltage | 4.5 to 16V |
| Control circuit supply voltage | 4.5 to 5.5V |
| Gate drive circuit supply voltage | 4.5 to 5.5V |
| PWM input type | 3-state 3.3 V |
| Maximum switching frequency | 1.5MHz |
| Minimum controllable PWM on-time | 30ns |
| Shutdown current | <3µA |
| Operating junction temperature | -40 to +125°C |
| Package size | 5.0 x 5.0mm |
| Pin count | 31 |
| Junction-to-ambient thermal resistance | 12.4°C/W |
| Quiescent current | 2 typmA |
| UVLO threshold | 3.5 to 4.1V |
| Thermal monitor current at 25 °C | 39.3 to 41.0µA |
| RoHS | Compliant |
| Green Packaging | Compliant |
These are design resources that include the Fairchild Semiconductor FDMF5820DC
Design document for DC2174A demo board featuring the LTC3882 dual-phase buck converter with PMBus for power system management and high current output up to 70A.
