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Safety Agency Approvals:
UL/cUL 60950, EN60950
VDE
NOMINAL SIZE =
0.75 in x 0.5 in
(19,05 mm
x
12,7 mm)
Description
The PTH12000 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 volt-
age of 12 V to provide step-down power
conversion to a wide range of output volt-
ages. W-suffix devices are adjustable from
1.2 V to 5.5 V, and L-suffix devices are
adjustable from 0.8 V to 1.8 V. The out-
put voltage is set within the adjustment
range using a single external resistor.
Operating features include an on/off
inhibit, output voltage adjust (trim), and
the ability to start up into an existing
output voltage or prebias. A non-latching
over-current trip provides protection
against load faults.
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
R
set
= Required to set the output voltage higher than
the lowest value (see spec. table for values).
C
1
= Required 100 渭F capacitor
C
2
= Optional 100 渭F capacitor
C
3
= Optional 10 渭F ceramic capacitor
V
IN
1
5
V
OUT
2
PTH12000x
(Top View)
4
+
Inhibit
3
GND
For technical support and further information visit http://power.ti.com
+
C
IN
100 碌F
(Required)
C
OUT
100 碌F
(Optional)
R
SET
, 1%
(Required)
GND