PTH12050W/L —12-V Input
6-A, 12-V Input Non-Isolated
Wide-Output Adjust Power Module
SLTS214C – MAY 2003 – REVISED MARCH 2003
Features
• Up to 6-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)
• Auto-Track™ Sequencing
• Output Over-Current Protection
(Non-Latching, Auto-Reset)
• IPC Lead Free 2
• Efficiencies up to 93 %
• 200 W/in³ Power Density
• On/Off Inhibit
• Under-Voltage Lockout
• Operating Temp: –40 to +85 °C
• Safety Agency Approvals:
UL 60950, cUL 600950, EN60950
(VDE is Pending)
• Point-of-Load Alliance (POLA)
Compatible
NOMINAL SIZE =
0.87 in x 0.5 in
(22,1 mm x 12,57 mm)
Pin Configuration
Description
Pin Function
ages. The output voltage of the W-suffix
device may set to any voltage over the
adjust range, 1.2 V to 5.5 V. The L-suffix
device has an adjustment range of 0.8 V
to 1.8 V. The output voltage is set within
the adjustment range using a single exter-
nal resistor.
Other operating features include an
on/off inhibit, output voltage adjust (trim),
and output over-current protection. For
high efficiency these parts employ a syn-
chronous rectifier output stage.
Target applications include telecom,
industrial, and general purpose circuits,
including low-power dual-voltage systems
that use a DSP, microprocessor, ASIC, or
FPGA.
The PTH12050 series is the smallest
non-isolated power modules from Texas
Instruments that features Auto-Track™
Sequencing. Auto-Track simplifies the
sequencing of supply voltages in power
systems by enabling modules to track each
other, or any other external voltage, during
power up and power down.
1
2
3
4
5
6
GND
Track
Vin
Inhibit *
Vo Adjust
Vout
*
Denotes negative logic:
Open
= Normal operation
Although small in size (0.87 in × 0.5 in),
these modules are rated for up to 6 A of
output current, and are an ideal choice in
applications where space, performance,
and a power-up sequencing capability are
important attributes.
The series operates from an input
voltage of 12-V to provide step-down
conversion to a wide range of output volt-
Ground = Function active
Standard Application
Track
VOUT
1
2
3
4
6
5
PTH12050
(Top View)
VIN
C1
C2
C3
100 µF
(Required)
10 µF
Ceramic
100 µF
(Optional)
RSET
1 %,
(Required)
Inhibit
GND
GND
R
= Required to set the output voltage higher than
the lowest value. (See spec. table for values)
set
C1 = Required 100 µF capacitor
C2 = 10 µF ceramic capacitor. Required for output
voltages 3.3 V and higher
C3 = Optional 100 µF capacitor
For technical support and further information, visit http://power.ti.com