50A, 4.5V to 14V Input, Non-Isolated, Wide Output, Adjustable Power Module with TurboTrans


Product details


Iout (Max) (A) 50 Vin (Min) (V) 4.5 Vin (Max) (V) 14 Vout (Min) (V) 0.7 Vout (Max) (V) 3.6 Soft start Fixed Features Current Sharing, TurboTrans Operating temperature range (C) -40 to 85 Iq (Typ) (uA) 100000 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 750 Switching frequency (Min) (kHz) 550 Duty cycle (Max) (%) 100 Topology Buck open-in-new Find other Buck modules (integrated inductor)

Package | Pins | Size

Surface Mount Module (BCU) 22 1067 mm² 39.62 x 26.92 Surface Mount Module (ECU) 22 1067 mm² 39.62 x 26.92 Through-Hole Module (ECT) 22 1067 mm² 39.62 x 26.92 open-in-new Find other Buck modules (integrated inductor)


  • Up to 50-A output current
  • 4.5-V to 14-V input voltage
  • Wide-output voltage adjust (0.7 V to 3.6 V)
  • ±1.5% Total output voltage variation
  • Efficiencies up to 96%
  • Output overcurrent protection
    (Nonlatching, auto-reset)
  • Operating temperature: –40°C to 85°C
  • Safety agency approvals:
    • UL/IEC/CSA-C22.2 60950-1
  • Prebias start-up
  • On/off inhibit
  • Differential output voltage remote sense
  • Adjustable undervoltage lockout
  • Auto-Track™ sequencing
  • Multi-Phase, switch-mode topology
  • TurboTrans technology
  • Designed to meet ultra-fast transient
    Requirements up to 300 A/µs
  • SmartSync technology
  • Parallel operation
  • POLA™ compatible
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The PTH08T250W device is a high-performance 50-A rated, non-isolated power module. This module represents the 2nd generation of the popular PTH series power modules with a reduced footprint and improved features.

Operating from an input voltage range of 4.5 V to 14 V, the device requires a single resistor to set the output voltage to any value over the range of 0.7 V to 3.6 V. The wide input voltage range makes the this device particularly suitable for advanced computing and server applications that utilize a loosely regulated 8-V to 12-V intermediate distribution bus. Additionally, the wide input voltage range increases design flexibility by supporting operation with tightly regulated 5-V, 8-V, or 12-V intermediate bus architectures. The module incorporates a comprehensive list of features. Output overcurrent and overtemperature shutdown protects against most load faults. A differential remote sense ensures tight load regulation. An adjustable undervoltage lockout allows the turnon voltage threshold to be customized. Auto-Track sequencing is a popular feature that greatly simplifies the simultaneous power-up and power-down of multiple modules in a power system. Additionally, the capability to current share between multiple PTH08T250W modules allows for load currents greater than 50 A on a single rail.

The device includes TurboTrans and the new patent-pending SmartSync technologies. The TurboTrans feature optimizes the transient response of the regulator while simultaneously reducing the quantity of external output capacitors required to meet a target voltage deviation specification. Additionally, for a target output capacitor bank, TurboTrans technology can be used to significantly improve the regulators transient response by reducing the peak voltage deviation. SmartSync technology allows for switching frequency synchronization of multiple modules, thus simplifying EMI noise suppression tasks and reducing input capacitor RMS current requirements.

RSET is required to set the output voltage higher than 0.7 V. See the Electrical Characteristics table for more information.

Double-sided surface mount construction provides a low profile and compact footprint. Package options include both through-hole and surface mount configurations that are lead (Pb)-free and RoHS compatible.

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Technical documentation

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Type Title Date
* Data sheet PTH08T250W 50-A, 4.5-V to 14-V Input, Non-isolated, Wide Output Adjust, Power Module with TurboTrans Technology datasheet (Rev. J) Dec. 12, 2019
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. C) Feb. 27, 2018
Application note High-Temperatures Soldering Requirements for Plug-in Power, Surface-Mount Pdts (Rev. A) Aug. 13, 2009
Application note Paralleling power modules for high-current applications Mar. 11, 2009
Application note Q1 2009 Issue Analog Applications Journal Mar. 11, 2009
Application note Power management for processor core voltage requirements Dec. 14, 2006

Design & development

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Design tools & simulation

SLTM005A.ZIP (95 KB) - PSpice Model
SLTM006A.ZIP (50 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
T2 Capacitance Calculator
T2-SW — The TurboTrans software allows the user to determine the T2 module best suited to their design parameters (Vin, Vout, Iout, Ambient Temperature, Airflow) as well as the proper amount of bulk output capacitance required to meet their transient requirements (both using TurboTrans as well as without (...)

Reference designs

100-A Current Source Reference Design Using Two Power Modules in Parallel
TIDA-00582 A stand-alone, dual-phase power module like the Texas Instruments (TI) PTH08T250W can supply up to 50 A of output load current. However, the PTH08T250W incorporates TI's stackable controller feature that allows the outputs of multiple modules to be connected in parallel, thereby producing a reliable (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
Surface Mount Module (BCU) 22 View options
Surface Mount Module (ECU) 22 View options
Through-Hole Module (ECT) 22 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
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  • Qualification summary
  • Ongoing reliability monitoring

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