Datasheet Texas Instruments PTH12020LAZT — Даташит

PTH12020W/L
www.ti.com . SLTS208I – MAY 2003 – REVISED MARCH 2009 18-A, 12-V INPUT NON-ISOLATED WIDE-OUTPUT
ADJUST POWER MODULE
FEATURES APPLICATIONS 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) Efficiencies up to 95% 195 W/in3 Power Density On/Off Inhibit Output Voltage Sense Pre-Bias Startup Under-Voltage Lockout Auto-Trackв„ў Sequencing Margin Up/Down Controls Output Over-Current Protection
(Non-Latching, Auto-Reset) Over-Temperature Protection Operating Temperature: –40°C to 85°C Point-of-Load Alliance (POLA™) Compatible Safety Agency Approvals:
UL/IEC/CSA-22.2 60950-1 1 2 Complex multi-voltage, multi-processor
systems NOMINAL SIZE = 1.5 in x 0.87 in
(38,1 mm x 22,1 mm) 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 18A 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, 1.2V to 5.5V. The L-suffix parts have an adjustment range of 0.8V to
1.8V. The output voltage is set using a single resistor.
This series includes Auto-Trackв„ў 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. …