TDM3885XUMA1

TDM3885XUMA1 is a 4A IPOL synchronous buck voltage regulator with an integrated inductor. The module’s PWM controller, MOSFETs, and inductor make the device a space-efficient solution, providing accurate power delivery. The TDM3885 employs an enhanced stability engine that makes it stable with ceramic capacitors without compensation. TDM3885 can operate in forced continuous conduction mode (FCCM) or can enter diode emulation mode (DEM) during light loads to save power. With ultra-light loads, TDM3885 can enter a low quiescent current mode making it ideal for standby power supplies. It also features important protection functions, such as pre-bias startup, internal soft-start, hiccup over-current protection and thermal shutdown to give required system-level security in the event of fault conditions. Potential applications include server and computing, storage and applications, communications infrastructure, general DC-DC converters, and distributed point-of-load power architectures.

• 4.7V to 14V single input voltage, 600KHz switching frequency
• Enhanced stability IPOL engine stable with ceramic capacitors and no external compensation
• Enhanced light load efficiency with reduced switching frequency and diode emulation
• Thermally compensated internal over-current protection
• Internal soft-start, enable input, PreBias start-up, thermal shut down, power good output
• 0.22µA typical PVin standby supply current at (enable low, Ta = 25°C)
• 82mohm typical top switch at (VBoot –Vsw = 5.2V, Tj = 25°C)
• 0.2mV/µs typical soft start ramp rate at (Ta = 25°C)
• 20ns typical minimum on-time at (PVin = 12V, Vout = 0V, Ta = 25°C)
• Operating junction temperature range from -40°C to 125°C, LGA-15 package