鈥?/div>
Point-of-Load Alliance (POLA)
Compatible
NOMINAL SIZE =
0.87 in x 0.5 in
(22,1 mm x 12,57 mm)
Description
The PTH05050 is one of the smallest
non-isolated power modules from Texas
Instruments that features Auto-Track鈩?
Auto-Track simplifies supply voltage
sequencing in power systems by enabling
modules to track each other, or any other
external voltage, during power up and
power down.
Although small in size (0.87 in
脳
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 product provides high-performance
step-down conversion from a 5-V input
bus voltage. The output voltage of the
PTH05050W can be set to any voltage
over the range, 0.8 V to 3.6 V, using a
single 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
synchronous rectifier output stage, but a
pre-bias hold-off capability ensures that
the output will not sink current during
startup.
Target applications include telecom,
industrial, and general purpose circuits,
including low-power dual-voltage systems
that use a DSP, microprocessor, ASIC, or
FPGA.
Package options include both through-
hole and surface mount configurations.
Pin Configuration
Pin
1
2
3
4
5
6
Function
GND
Track
V
in
Inhibit *
V
o
Adjust
V
out
* Denotes negative logic:
Open
= Normal operation
Ground = Function active
鈩?/div>
-Track g
Auto n c i n
e
Sequ
Standard Application
Rset = Required to set the output voltage to a value
higher than 0.8 V. (See spec. table for values)
Cin = Required 100 碌F
Co 1 = Optional 100 碌F capacitor
Co
2
= Optional 10 碌F ceramic capacitor for reduced
output ripple.
Track
1
2
6
V
OUT
V
IN
3
4
PTH05050W
(Top View)
5
Co
1
100 碌F
Electrolytic
(Optional)
Co
2
10 碌F
Ceramic
(Optional)
C
IN
100 碌F
(Required)
R
SET
1 %, 0.1 W
(Required)
Inhibit
GND
GND
For technical support and further information, visit http://power.ti.com
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