Highly-Efficient IPOL DC-DC Buck Regulator Power Modules for Smart Enterprise Systems

Published  July 15, 2022   0
IPOL DC-DC Buck Regulator Power Modules

Infineon Technologies AG has introduced the new highly efficient and reliable step-down DC-DC converter modules that primarily address space and thermally constrained applications like telecom and datacom applications, servers, and network storage and are ideal for system designers looking for compact, fully integrated, and easy-to-design POL products to help them expedite time-to-market. The new TDM3883 and 3885 IPOL are fully integrated single-output buck converters, offering a high-efficiency continuous 3A/4A load capability and line regulation over a wide input supply range (4.5 – 14 V). 

Both modules feature a low supply current (10 μA) at shutdown resulting in longer battery life for portable applications and integrated inductor and capacitors reduce external components and allow easier designs with much higher power density. The integration offers improved performance compared to discrete solutions due to the low parasitic parameters by minimizing the PCB wiring trace needed. Also with a tiny package size, these modules can fit into the restricted PCB space offering up to 80 percent area saving on the customer solution. 

With tight reference voltage V REF tolerance (0.5 V±1.0 percent) and low ripple, these modules provide accurate power delivery and contribute to system stability and reliability. These modules employ an Enhanced Stability COT (constant on time) engine with ceramic capacitors without external compensation and a forced continuous conduction mode (FCCM) option. They come with thermally-compensated internal over-current protection (OCP), enhanced 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 it ideal for standby power supplies.


TDM3883 and TDM3885 integrated POL 3A/4A single output high-efficiency buck regulator modules with integrated inductor are now available in a 2.7x3.1x2.3 mm 3 PG-LGA-15-1 package and a 3.1x3.8x2.3 mm 3 PG-LGA-15-2, respectively.