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Auto-Track鈩?Sequencing
Dual-Phase Topology
Under-Voltage Lockout
Output Over-Current Protection
(Non-Latching, Auto-Reset)
Over-T
emperature Protection
Surface Mountable
Operating Temp: 鈥?0 to +85 擄C
DSP Compatible Output Voltages
IPC Lead Free 2
NOMINAL SIZE =
1.37 in x 1.12 in
(34,8 mm x 28,5 mm)
Description
The PTH12030 is a series of high-
current non-isolated power module from
Texas Instruments. This product is char-
acterized by high efficiencies, and up to
26 A of output current, while occupying
a mere 1.64 in虜 of PCB area. In terms of
cost, size, and performance, the series
provides OEM鈥檚 with a flexible module
that meets the requirements of the most
complex and demanding mixed-signal
applications. These include the most
densly populated, multi-processor sys-
tems that incorporate high-speed DSP鈥檚,
microprocessors, and ASICs.
The series uses double-sided surface
mount construction and provides high-
performance step-down power conversion
from a 12-V input bus voltage. The out-
put voltage of the PTH12030W can be
set to any value over the range, 1.2 V to
5.5 V, using a single resistor.
This series includes Auto-Track鈩?
Auto-Track simplifies power-up and
power-down supply voltage sequencing
in a system by enabling modules to track
each other, or any other external voltage.
Each model also includes an on/off
inhibit, output voltage adjust (trim), and
margin up/down controls. An output
voltage sense ensures tight load regulation,
and an output over-current and thermal
shutdown feature provide for protection
against external load faults.
Package options inlude both through-
hole and surface mount connfigurations.
Pin Configuration
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
Function
GND
V
in
GND
Inhibit *
V
o
Adjust
V
o
Sense
GND
V
out
V
out
GND
Track
Margin Down *
Margin Up *
ADVANCE INFORMATION
* Denotes negative logic:
Open
= Normal operation
Ground = Function active
Standard Application
Track
Margin Down
Margin Up
13
1
12
11
10
k聶
-Trac g
Auto ncin
e
Sequ
R
set
= Resistor to set the desired output
voltage (see spec. table for values).
Cin = Required electrolytic 560 碌F
Cout = Optional 330 碌F electrolytic
V
IN
2
PTH12030W
(Top View)
9
8
7
V
OUT
3
4
5
6
Inhibit
V
o
Sense
L
O
A
D
GND
For technical support and more information, see inside back cover or visit www.ti.com
+
+
C
IN
560 碌F
(Required)
R
SET
0.5 %, 0.1 W
(Required)
C
OUT
330 碌F
(Optional)
GND
1
2
3
4
5
6
7
8
