Infineon Introduces New High Efficiency IPOL DC-DC Buck Regulator Power Modules
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Update time : 2022-07-23 15:38:35
Currently, servers, communications and network storage applications are doing their best to reduce power consumption and shrink the size of their solutions. At the same time, the fast-changing market requires system solution providers to meet market demands faster than ever. With this in mind, Infineon Technologies AG has further expanded its POL (load power) module portfolio with the introduction of highly efficient and reliable DC-DC buck converter modules. These modules are ideal for system designers who want compact, fully integrated and easy-to-design POL products to help them accelerate new product launches. They are aimed at space- and thermal-constrained applications, such as telecom and datacom applications, servers, and network storage applications.
The TDM3883 and 3885 IPOLs are fully integrated single output buck converters capable of delivering continuous loads up to 3A/4A with high efficiency, excellent line and load regulation, and support a wide input voltage range of 4.5 V - 14 V. The integrated inductor and capacitor components reduce the number of external components, facilitating easy implementation of higher power density designs. Compared to discrete solutions, this integrated solution reduces parasitic parameters and improves performance by minimizing PCB alignment. At the same time, due to the extremely small package size, these modules can save up to 80% of the PCB footprint, freeing up more possibilities for customers' solutions. For both optimized power modules, Infineon has rigorously tested the integrated inductive and capacitive components in both reliability testing and finished product testing (FT), which further reduces the customer's workload and eliminates the need for passive component selection and testing.
Both modules have a small supply current (10 μA) at shutdown, which extends the battery life of portable devices. In addition, with very small reference voltage (VREF) tolerance (0.5 V ± 1.0%) and low ripple, they are able to provide accurate output power, which contributes to system stability and reliability. To this end, they also feature a stability-enhancing COT (constant on-time) engine with ceramic capacitors and no external compensation, as well as a forced continuous conduction mode (FCCM) option. In addition, these modules feature thermally compensated internal overcurrent protection (OCP) to improve light-load efficiency by reducing the switching frequency, as well as utilizing diode emulation mode (DEM). Under ultra-light load conditions, they can enter low quiescent current mode, which makes them ideal for reducing standby power consumption. Not only that, they also have other features such as internal soft-start, enable input, pre-biased start, thermal shutdown, power normal output, over-voltage protection (OVP) and under-voltage lockout (UVLO).
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