TPS546D24A Datasheet | Texas Instruments

Features - Split rail support: 2.95-V to 16-V PVIN; 2.95-V to 18-V AVIN (4-VIN VDD5 for switching) - Integrated 4.5-mΩ/0.9-mΩ MOSFETs - Average current mode control with selectable internal pensation - 2×, 3×, 4× stackable with current sharing up to 160 A, supporting a single address per output - Selectable 0.5-V to 5.5-V output via pin strap or 0.25-V to 5.5-V using PMBus VOUT_MAND - Extensive PMBus mand set with telemetry for VOUT, IOUT and internal die temperature - Differential remote sensing with internal FB divider for < 1% VOUT error - 40°C to +150°C TJ - AVS and margining capabilities through PMBus - MSEL pins pin programming PMBus defaults - 12 Selectable switching frequencies from 225 k Hz to 1.5 MHz (8 pin-strap options) - Frequency sync in/sync out - Supports prebiased output - Supports strongly coupled inductor - 7-mm × 5-mm × 1.5-mm, 40-pin QFN, pitch = 0.5 mm - Create a Custom Design Using the TPS546D24A With WEBENCH® Power Designer 2 Applications - Data center switches, rack servers - Active antenna system, remote radio and baseband unit - Automated test equipment, CT, PET, and MRI - ASIC, So C, FPGA, DSP core, and I/O voltage 3 Description The TPS546D24A is a highly integrated, non-isolated DC/DC converter capable of high frequency operation and 40-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546D24A devices can be interconnected to provide up to 160 A on a single output. The device has an option to overdrive the internal 5-V LDO with an external 5-V supply via the VDD5 pin to improve efficiency and reduce power dissipation of the converter. The TPS546D24A uses a proprietary fixed-frequency current-mode control with input feedforward and selectable internal pensation ponents for minimal size and stability over a wide range of output capacitances. The PMBus interface with 1-MHz clock support gives a convenient, standardized digital interface for converter configuration as well as monitoring of key parameters including output...