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Texas Instruments TPSM8S6C24 Synchronous Buck Power Module

Texas Instruments TPSM8S6C24 Synchronous Buck Power Module is a highly integrated, easy-to-use, non-isolated DC/DC buck power module with added manufacturer-specific PMBus® commands. It also includes the addition of EXTENDED_WRITE_PROTECT and PASSKEY, which improves security against malicious access to the PMBus by restricting Write capability with a greater resolution than the standard Write Protect command.

Texas Instruments TPSM8S6C24 is a 35A power module and can source up to 140A with four × stackability. The device has the option to overdrive the internal 5V LDO with an external 5V supply to enable a lower input voltage range down to 2.95V and improve the efficiency of the converter. TPSM8S6C24 power module uses a proprietary fixed-frequency current-mode control with input feed-forward and selectable internal compensation components for minimal size and stability over a wide range of output capacitances.

Features

Integrated extended security feature
4.25V to 16V with PVIN tied to AVIN with internal LDO
2.95V to 16V with PVIN and AVIN split rail or with external bias on VDD5
Integrated MOSFETs, inductors, and basic passives
Average current mode control with selectable internal compensation
0.5V to 3.6V output voltage range from through pin strap
0.25V to 3.6V PMBus VOUT_COMMAND range
Extensive PMBus command set with telemetry for V_OUT, I_OUT, and die temperature

Differential remote sensing with an internal FB divider for < 1% V_OUT error
–40°C to +125°C T_J
AVS and margining capabilities through PMBus
Multi-function select (MSEL) pins for pin strap programming PMBus defaults
Nine selectable switching frequencies from 275kHz to 1.1MHz
Frequency sync in, sync out
Supports pre-biased output
16mm × 11mm × 4.3mm, 45-pin MOY package

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

Texas Instruments TPSM8S6C24 Synchronous Buck Power Module

Features

Applications

Functional Block Diagram

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