Hot-selling and scarce TPS546D24RVFR Voltage Regulator IC Output QFN-40 spot stock

Product Descriptions

The TPS546D24 is a highly integrated, non-isolatedDC/DC converter capable of high frequency operationand 40-A current  output  from a 7-mm × 5-mmpackage . Two, three, and four TPS546D24 devicescan be interconnected to provide up to 160 A on asingle output . The device has an option to overdrivethe internal 5-V LDO with an external 5-V supply viathe VDD5 pin to improve efficiency and reduce powerdissipation of the converter .

The TPS546D24 uses a proprietary fixed-frequencycurrent-mode control   with input   feedforward andselectable internal   compensation components forminimal size and stability over a wide range of outputcapacitances .

The PMBus interface with 1-MHz clock support givesa convenient,   standardized digital    interface forconverter configuration as well  as monitoring of keyparameters including output voltage, output current,and internal   die temperature .   Response to faultconditions can be set to restart, latch off, or ignore,depending on system requirements .  Back-channelcommunication between stacked devices enables allTPS546D24 converters powering a single output railto share a single address to simplify systemsoftware/firmware design .  Key parameters includingoutput  voltage,  switching frequency,  soft-start  time,and overcurrent  fault  limits can also be configuredthrough   BOM  selection   without       PMBuscommunication to support program free power-up .

Product 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-mΩMOSFETs

•   Average Current Mode Control With Selectable Internal Compensation

•   2× , 3x, 4× Stackable With Current Sharing up to 160 A, Supporting a Single Address per Output

•   Selectable 0. 6-V to 5. 5-V Output via Pin Strap or 0.25-V to 5. 5-V via PMBus VOUT_ COMMAND

•   Extensive PMBus Command 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 kHz 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

Product Applications

•   Data Center Switches, Rack Servers

•   Active Antenna System, Remote Radio and Baseband Unit

•   Automated Test Equipment, CT, PET, and MRI

•   ASIC, SoC, FPGA, DSP Core, and I/O Voltage

Product Specifications

Product Photos

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