1FEATURES
2· 50-A Output Current
· 8-V to 14-V Input Voltage
· Wide-Output Voltage Adjust (0.8 V to 5.5 V)
· Efficiencies up to 96%
· On/Off Inhibit
· Differential Output Sense
· Output Overcurrent Protection
(Nonlatching, Auto-Reset)
· Overtemperature Protection
· Auto-Track™ Sequencing
· Start Up Into Output Prebias
· Margin Up/Down Controls
· Operating Temperature: –40°C to 85°C
· Multi-Phase, Switch-Mode Topology
· Programmable Undervoltage Lockout (UVLO)
· Safety Agency Approvals:
UL/cUL 60950, EN60950, VDE

APPLICATIONS
· Advanced Computing and Server Applications

DESCRIPTION
The PTH12040W is a high-performance 50-A rated, non-isolated, power module, which uses the latest
multiphase switched-mode topology. This provides a small, ready-to-use module, that can power the most densly
populated multiprocessor systems.
Operating from an input voltage range of 8 V to 14 V, the PTH12040W requires a single resistor to set the output
voltage to any value over the range, 0.8 V to 5.5 V. The wide input voltage range makes the PTH12040W
particularly suitable for advanced computing and server applications that utilize a loosely regulated 12-V
intermediate distribution bus.
The modules incorporate a comprehensive list of features. They include on/off inhibit and margin up/down
controls. A differential remote output voltage sense ensures tight load regulation, and an output overcurrent and
overtemperature shutdown protect against most load faults. The programmable under-voltage lockout allows the
turn-on and turn-off voltage thresholds to be customized.
The PTH12040W incorporates Auto-Track™. The Auto-Track feature of the PTH family allows the outputs of
multiple modules to track a common voltage during power up and power down transitions. This simplifies power
up and power down supply-voltage sequencing in a power supply system.
The modules use double-sided surface mount construction to provide a low profile and compact footprint.
Package options include both through-hole and surface mount configurations.