PTH08T250W (ACTIVE)

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

 

Description

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, 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 over-temperature shutdown protects against most load faults. A differential remote sense ensures tight load regulation. An adjustable under-voltage lockout allows the turn-on 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.

Features

  • 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 Startup
  • 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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Parametrics Compare all products in Step-Down (Buck) Module

 
Iout (Max) (A)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Soft Start
Features
Regulated Outputs (#)
Package Size: mm2:W x L (PKG)
Switching Frequency (Max) (kHz)
Switching Frequency (Min) (kHz)
Switching Frequency (Typ) (kHz)
Topology
Operating Temperature Range (C)
Pin/Package
PTH08T250W LMZ31520 PTH08T210W PTH08T220W PTH08T221W PTH08T230W PTH08T240W PTH08T255W PTH08T260W
50    20    30    16    16    6    10    40    3   
4.5    3    5.5    4.5    4.5    4.5    4.5    8    4.5   
14    14.5    14    14    14    14    14    14    14   
0.7    0.6    0.7    0.7    0.7    0.7    0.7    3    0.69   
3.6    3.6    3.6    5.5    5.5    5.5    5.5    5.25    5.5   
  Adjustable                 
TurboTrans    EMI Tested
Enable
Light Load Efficiency
Power Good
Remote Sense   
TurboTrans    TurboTrans    TurboTrans    TurboTrans    TurboTrans    TurboTrans    TurboTrans   
1    1    1    1    1    1    1    1    1   
22Surface Mount Module: 1067 mm2: 26.92 x 39.62(Surface Mount Module)
22Through-Hole Module: 1067 mm2: 26.92 x 39.62(Through-Hole Module)   
72BQFN: 240 mm2: 15 x 16(BQFN)    14Surface Mount Module: 600 mm2: 16.76 x 35.81(Surface Mount Module)
14Through-Hole Module: 600 mm2: 16.76 x 35.81(Through-Hole Module)   
11Surface Mount Module: 461 mm2: 19.94 x 23.11(Surface Mount Module)
11Surface Mount Module: 461 mm2: 23.11 x 19.94(Surface Mount Module)
11Through-Hole Module: 418 mm2: 18.93 x 22.1(Through-Hole Module)   
11Surface Mount Module: 461 mm2: 19.94 x 23.11(Surface Mount Module)
11Surface Mount Module: 461 mm2: 23.11 x 19.94(Surface Mount Module)
11Through-Hole Module: 418 mm2: 18.93 x 22.1(Through-Hole Module)   
10Surface Mount Module: 334 mm2: 16.76 x 19.94(Surface Mount Module)
10Through-Hole Module: 334 mm2: 16.76 x 19.94(Through-Hole Module)   
11Surface Mount Module: 387 mm2: 16.76 x 23.11(Surface Mount Module)
11Through-Hole Module: 348 mm2: 15.75 x 22.1(Through-Hole Module)   
22Surface Mount Module: 1067 mm2: 26.92 x 39.62(Surface Mount Module)
22Through-Hole Module: 1067 mm2: 26.92 x 39.62(Through-Hole Module)   
10Surface Mount Module: 334 mm2: 16.76 x 19.94(Surface Mount Module)
10Through-Hole Module: 334 mm2: 16.76 x 19.94(Through-Hole Module)   
  850                 
  300                 
  500                 
Buck    Buck    Buck    Buck    Buck    Buck    Buck    Buck    Buck   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
22Surface Mount Module
22Through-Hole Module   
72BQFN    14Surface Mount Module
14Through-Hole Module   
11Surface Mount Module
11Surface Mount Module
11Through-Hole Module   
11Surface Mount Module
11Surface Mount Module
11Through-Hole Module   
10Surface Mount Module
10Through-Hole Module   
11Surface Mount Module
11Through-Hole Module   
22Surface Mount Module
22Through-Hole Module   
10Surface Mount Module
10Through-Hole Module   
New! Interactive Design
Click to instantly view a schematic, charts, Bill of Materials, and Operating Values.

WEBENCH® Designer PTH08T250W

  Min   Max Range
Vin  V 4.5 to 14.0V
Vout  V 0.7 to 3.6V
Iout  A ≤ 50A
Ambient Temp  °C -40 to 130°C


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