PTH12020W/L
www.ti.com
SLTS208E–MAY 2003–REVISED OCTOBER 2005
18-A, 12-V INPUT NON-ISOLATED WIDE-OUTPUT
ADJUST POWER MODULE
FEATURES
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Point-of-Load Alliance (POLA™) Compatible
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Up to 18 A Output Current
12-V Input Voltage
Wide-Output Voltage Adjust (1.2 V to
5.5 V)/(0.8 V to 1.8 V)
APPLICATIONS
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Complex multi-voltage, multi-processor
systems
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Efficiencies up to 95%
195 W/in3 Power Density
On/Off Inhibit
Output Voltage Sense
Pre-Bias Startup
Under-Voltage Lockout
Auto-Track™ Sequencing
Margin Up/Down Controls
Output Over-Current Protection
(Non-Latching, Auto-Reset)
NOMINAL SIZE =
1.5 in x 0.87 in
(38,1 mm x 22,1 mm)
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Over-Temperature Protection
Operating Temperature: –40°C to 85°C
Safety Agency Approvals: UL/cUL 60950,
EN60950 VDE
DESCRIPTION
The PTH12020 series of non-isolated power modules offers OEM designers a combination of high performance,
small footprint, and industry leading features. As part of a new class of power modules, these products provide
designers with the flexibility to power the most complex multi-processor digital systems using off-the-shelf catalog
parts.
The series employs double-sided surface mount construction and provides highperformance step-down power
conversion for up to 18 A of output current from a 12-V input bus voltage. The output voltage of the W-suffix
parts can be set to any value over the range, 1.2 V to 5.5 V. The L-suffix parts have an adjustment range of
0.8 V to 1.8 V. The output voltage is set using a single resistor.
This series includes Auto-Track™ sequencing. Auto-Track sequencing simplifies the task of supply voltage
sequencing in a power system by enabling modules to track each other, or any external voltage, during power up
and power down.
Other operating features include an on/off inhibit, output voltage adjust (trim), margin up/down controls, and the
ability to start up into an existing output voltage or prebias. For improved load regulation, an output voltage sense
is provided. A non-latching over-current trip and overtemperature shutdown feature protects against load faults.
Target applications include complex multivoltage, multiprocessor systems that incorporate the industry's
high-speed DSPs, microprocessors and bus drivers.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
POLA, TMS320 are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2003–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.