Contemporary server, communications, and network storage applications struggle to minimize power losses and solution size. The rapidly changing market also requires system solution providers to respond to market needs more quickly than usual.
To solve these problems, Infineon Technologies has introduced highly efficient and reliable step-down DC-DC converter modules. Adding to the Point of Load (POL) family, these modules are ideal for system designers looking for compact, fully integrated, and easy-to-design POL products to help them accelerate time to market.
They mainly address space- and thermally-constrained applications, telecommunications and data communications applications, servers, and network storage.
TDM3883 and 3885 IPOL are fully integrated single output buck converters offering high efficiency 3A/4A continuous load capability and line regulation over a wide input power range (4.5 – 14V). Integrated inductor and capacitors reduce external components and allow for easier designs with much higher power density. Integration offers better performance compared to discrete solutions due to low parasitic parameters, minimizing PCB wiring trace required.
At the same time, thanks to their small package size, the modules can fit into the restricted PCB space, offering up to 80% area savings in the customer's solution. In both optimized modules, Infineon over-tests the inductor and integrated capacitors in reliability and final testing (FT), eliminating the effort of selecting and testing passive components.
Both modules feature a low supply current (10 μA) at shutdown, resulting in longer battery life for portable applications. Furthermore, due to their narrow reference voltage V REFERENCE tolerance (0.5 V±1.0 percent) and low ripple, they provide accurate power delivery and contribute to system stability and reliability. To further support this, they employ an enhanced stability (constant time) COT motor with ceramic capacitors without external compensation, as well as a forced continuous conduction mode (FCCM) option.
Additionally, the modules come with internal thermally compensated overcurrent protection (OCP), increased light load efficiency with reduced switching frequency, and diode emulation mode (DEM). With ultra-light loads, they can enter a low quiescent current mode, making them ideal for standby power supplies. Other features include internal soft start, enable input, pre-bias startup, thermal shutdown, power good output, overvoltage protection (OVP), and UVLO.
TDM3883 and TDM3885 integrated POL 3A/4A high efficiency single output buck regulator modules with integrated inductor are available in 2.7×3.1×2.3 mm 3 Package PG-LGA-15-1 and 3.1×3 .8×2.3 mm 3 PG-LGA-15-2, respectively.
