TPS53632GRSMT - 48V GaN Half-Bridge D-CAP+ Controller | TI
MPN: TPS53632GRSMT ✓ NakahandaTPS53632GRSMT Ulas
A DC/DC switching controller is a power management IC that regulates output voltage by driving external power switches (here, GaN FETs) through a feedback-controlled PWM loop. Within the power-management hierarchy, the TPS53632G sits in the switching controller family above simple buck converters, targeting LLC-like half-bridge topologies for high-voltage server and telecom power systems.
Key features include D-CAP+ control for ultra-fast load transients without complex loop compensation, an I2C Rev 3.0 interface for dynamic output voltage control and current-monitor telemetry, and compatibility with TI GaN power stages for 48-V input conversion. FindIC lists conversion from 2.5 V to 24 V control supply with a step-down single output of 0.5 V to 1.52 V at up to 60 A, making it well suited to low-voltage, high-current CPU/ASIC core rails fed from 48-V infrastructure.
Technically, the D-CAP+ architecture combines a constant-on-time modulator with internal ripple compensation, delivering low output ripple and excellent transient behavior even with all-ceramic output capacitor banks. The I2C telemetry loop supports fault status readback, enabling power-system monitoring in datacenter and base-station designs.
Typical applications include 48-V server power shelves, GaN-based point-of-load converters, telecom rectifiers, and high-density networking equipment where a single-stage 48-V-to-1-V conversion eliminates an intermediate bus converter stage, improving efficiency and power density.
When designing, follow the TI datasheet layout guidelines: keep the switch-node loop compact, place GaN power stages adjacent to the controller, and use the exposed thermal pad soldered to a solid ground plane for heat spreading and EMI control.
Mga alternatibo na pwedeng ilagay na TPS53632GRSMT — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok TPS53632GRSMT (parehas na form factor at footprint) — pagkakaiba sa Function, Package, Topology.
TPS53632GRSMR
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
TPS53632GRSMT Mga Pinakamataas na Rating at Electrical Characteristics
| Fungsi | Half-Bridge PWM Controller, D-CAP+ |
| Topolohiya | Half-Bridge, Step-Up/Step-Down, Single-Output |
| Input Supply Voltage | 2.5 V to 24 V |
| Hanay ng Output Volte | 0.5 V to 1.52 V |
| Maksimum na Current ng Output | 60 A |
| Bus Voltage Target | 48 V (GaN converter) |
| Control Interface | I2C Rev 3.0 |
| Control Architecture | D-CAP+ (fast transient, low output capacitance) |
| Recommended Power Devices | TI GaN power stages |
| Packhaging | 32-VQFN (RSM), 4x4 mm, exposed pad |
| Uri ng Pagpapasok | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Telemetry | Current monitor via I2C |
| Tindminan RoHS | Compliant |
| Katayuan ng Lifecycle | Active (TI.com) |
Gabay sa Pin Configuration ng TPS53632GRSMT 32-vqfn (rsm), 4x4 mm, exposed pad
Pin configuration para sa TPS53632GRSMT (32-vqfn (rsm), 4x4 mm, exposed pad package). Ang power device na ito ay may gate, drain, at source terminals. Para sa mga non-polarized package, sumangguni sa datasheet ng manufacturer para sa eksaktong oryentasyon ng pin 1 at mga detalye ng footprint. Kasama sa mga karaniwang aplikasyon ang disenyo ng power supply, motor driving, at load switching.
Wala ng detalyadong pinout data na magagamit para sa TPS53632GRSMT.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
TPS53632GRSMT ay nararapat para sa 6 aplikasyons: 48-V Server Power Shelf, GaN-Based Point-of-Load Conversion, Telecom Rectifier and Base Station Power, High-Density Networking Equipment, GPU/AI Accelerator Board Power, Industrial 48-V Drive and Automation Power.
48-V Server Power Shelf
The TPS53632GRSMT fits hyperscale server 48-V power shelves where its half-bridge D-CAP+ topology converts the 48-V bus directly to a low-voltage 0.5 V to 1.52 V rail at up to 60 A in a single stage. According to the TI datasheet, this single-stage conversion removes the intermediate 12-V converter stage, improving end-to-end efficiency and raising power density. The I2C Rev 3.0 interface lets the shelf BMC adjust output setpoint dynamically and read back current telemetry, while the D-CAP+ loop maintains regulation during processor load steps with minimum output capacitance.
Inirekomenda
GaN-Based Point-of-Load Conversion
For GaN-based point-of-load converters, the TPS53632G is purpose-built: TI pairs it with its GaN power stages, whose fast switching edges reduce switching loss at 48 V. The controller's D-CAP+ architecture delivers the fast transient response and lowest output capacitance that POL designs demand, and the 0.5 V to 1.52 V output window with 60 A capability covers modern core rails. Designers should keep gate-drive loops short to exploit GaN speed without excessive ringing, and use the 4x4 mm VQFN exposed pad for compact thermal design in dense POL layouts.
Inirekomenda
Telecom Rectifier and Base Station Power
Telecom infrastructure runs on a native -48 V/48-V bus, making the TPS53632GRSMT's direct 48-V single-stage conversion a natural fit for rectifier auxiliary outputs and base-station processing boards. Its 2.5 V to 24 V control supply range simplifies housekeeping-rail generation, while I2C telemetry supports remote current monitoring demanded by network-management systems. The D-CAP+ control tolerates wide-line transients typical of telecom buses with minimal output capacitance, reducing BOM cost in high-reliability outdoor equipment where board space and component count drive cost.
Inirekomenda
High-Density Networking Equipment
Switches and routers increasingly adopt 48-V power distribution to cut I2R losses; the TPS53632GRSMT converts this bus straight to ASIC core voltages (0.5 V to 1.52 V, 60 A) without an intermediate stage, freeing board area in 1U platforms. The controller's fast D-CAP+ transient response handles the sharp current steps of traffic burst processing, and current-monitor telemetry via I2C enables thermal and power budgeting in the chassis manager. The 32-VQFN 4x4 mm footprint suits the compact power sections typical of high-port-count switching designs.
Inirekomenda
GPU/AI Accelerator Board Power
AI accelerator boards need hundreds of amps at sub-1.5 V from a 48-V rack bus; TPS53632GRSMT-based single-stage half-bridge converters eliminate the 12-V intermediate stage, directly improving deliverable compute per watt. The 60 A per-controller rating allows paralleling stages, and D-CAP+ control absorbs the extreme load transients of training workloads with reduced output capacitor banks. The I2C interface supports per-rail telemetry needed for fleet-level power management, making the controller well matched to 48-V datacenter GPU and TPU accelerator power architectures.
Inirekomenda
Industrial 48-V Drive and Automation Power
Industrial automation increasingly uses 48-V DC microgrids for drives, robotics, and motion control. The TPS53632GRSMT provides the control logic to build efficient 48-V-to-low-voltage converters for controllers, sensors, and FPGA banks, with the 0.5 V to 1.52 V, 60 A output window covering FPGA core rails. Its D-CAP+ loop responds quickly to the pulsating loads of motor-drive logic, and I2C control lets a PLC host trim voltages for margining tests. Designers should observe the datasheet layout rules for switching-loop inductance in electrically noisy factory environments.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for TPS53632GRSMT — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | TPS53632GRSMR | TPS536C9RSLR | TPS53622RSBT |
|---|---|---|---|---|
| Package | 32-VQFN (RSM) 4x4 mm EP | 32-VQFN (RSM) - same | VQFN (RSL) - different | VQFN-32 (RSB) - different pinout |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Topology | Half-Bridge (48-V GaN) | Half-Bridge (48-V GaN) | Multiphase D-CAP+ buck | 3-2-1 phase buck |
| Control Interface | I2C Rev 3.0 with telemetry | I2C Rev 3.0 with telemetry | I2C/PMBus, richer telemetry | I2C |
| Control Architecture | D-CAP+ half-bridge | D-CAP+ half-bridge | D-CAP+ multiphase | D-CAP+ |
| Target Bus Voltage | 48 V single-stage | 48 V single-stage | Intermediate-bus (low V) | Intermediate-bus (low V) |
| Drop-in Replacement | - | Yes (same die/package) | No - redesign required | No - different topology/pinout |
Pangunahing mga Pagkakaiba
- Single-stage 48-V conversion (kumpara saTPS53622RSBT)
- GaN-optimized half-bridge control (kumpara saTPS536C9RSLR)
- Identical drop-in twin exists (kumpara saTPS53632GRSMR)
Talaan ng Disenyo
Keep the half-bridge switch-node loop as small as possible by placing the TI GaN power stages directly adjacent to the TPS53632G. Short, wide gate-drive traces are essential because GaN devices switch with very fast edges; excess loop inductance causes gate ringing that can exceed device ratings. Solder the 32-VQFN exposed pad to a continuous ground plane with an array of thermal vias for both heat dissipation and a low-inductance return path.
The 48-V single-stage conversion concentrates switching losses in the power stage rather than the controller, but verify the GaN power stage thermal budget at full 60 A load using the TI datasheet efficiency curves for your output voltage setpoint. Size the output capacitor bank per the D-CAP+ guidance - one benefit of D-CAP+ is minimum output capacitance for a given transient, so do not over- or under-design the ceramic bank without simulating the worst-case load step.
Do not confuse the TPS53632G with the non-G TPS53632, which is a different 3-2-1 phase buck controller with a different pinout. Also confirm the I2C address mapping and telemetry register behavior against the TI datasheet before tying multiple controllers to a shared bus in shelf designs; the I2C Rev 3.0 interface supports dynamic VOUT changes that must be bounded by your board's voltage-margining limits.
Impormasyon ng Pagsunod sa Kautusan
RoHS compliance per standard TI catalog part listing; detailed REACH/halogen status available on TI.com product page for TPS53632G.
