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Pre-Bias Startup
Over-Temperature Protection
Surface Mountable
Operating Temp: 鈥?0 to +85 擄C
DSP Compatible Output Voltages
IPC Lead Free 2
NOMINAL SIZE =
0.75 in x 0.5 in
(19,05 mm
x
12,7 mm)
Description
The PTH05000 series of non-isolated
power modules are small in size and high
on performance. Using double-sided sur-
face mount construction and synchronous
rectification technology, these regulators
deliver up to 6 A of output current while
occupying a PCB area of about half the
size of a standard postage stamp. They
are an ideal choice for applications where
space, performance and cost are impor-
tant design constraints.
The series operates from an input
voltage of 5 V to provide step-down
power conversion to any output voltage
over the range, 0.9 V to 3.6 V. The out-
put voltage of the PTH05000W is set
within this range using a single resistor.
Operating features include an on/off
inhibit, output voltage adjust (trim), an
output current limit, and over-tempera-
ture protection.
For high efficiency these parts employ
a synchronous rectifier output stage. An
output pre-bias holdoff capability ensures
that the output will not sink current dur-
ing startup.
Target applications include telecom,
industrial, and general purpose circuits,
including low-power dual-voltage systems
that use a DSP, microprocessor, or ASIC.
Package options include both through-
hole and surface mount configurations.
Pin Configuration
Pin
1
2
3
4
5
Function
GND
V
in
Inhibit *
V
o
Adjust
V
out
* Denotes negative logic:
Open
= Output On
Ground = Output Off
Standard Application
V
OUT
V
IN
1
5
2
PTH05000W
(Top View)
4
Inhibit
3
R
SET
1 %, 0.1 W
(Required)
GND
For technical support and more information, see inside back cover or visit www.ti.com
+
+
C
IN
330 碌F
(Required)
C
OUT
100 碌F
(Optional)
GND
R
set
= Reistor to set the desired output
voltage (see spec. table for values)
Cin = Required electrolytic 330 碌F
Cout = Recommended 100 碌F electrolytic