
For technical support and more information, see inside back cover or visit www.ti.com
Standard Application
Features
10W Output Power
Input Voltage: 18V to 36V
Output Voltages: 1.2V to 13.2V
1500 VDC Isolation
Temp Range: –40°C to +85°C
Remote On/Off Control
Undervoltage Lockout
Output Current Limit
Ordering Information
PT 4241
=1.8V/3A
PT 4242
=3.3V/3A
PT 4243
=5.0V/2A
PT 4244
=12.0V/0.85A
PT 4245
=2.5V/3A
PT 4246
=1.5V/3A
PT 4247
=1.3V/3A
(5.4W)
(7.5W)
(4.5W)
(3.9W)
Adjustable to 1.2V
Description
The PT4240 power modules are a
series of DC/DC converters housed in
an ultra-low profile (8mm) solderable
copper case. The series includes a num-
ber of preset output voltages ranging
from 1.3V
for Telecom use. They may also be used
in many other applications that require
input-output isolation over an extended
temperature range. The modules are an
ideal choice for low-power digital and
analog circuits, including DSPs and
microcontrollers. The flexibility of
input-output isolation also allows the
output to be configured for negative
voltage operation.
The PT4240 series is made available
in both horizontal and vertical pin con-
figurations, including surface mount.
up to 12V, all fully approved
Short-Circuit Protection
Low-Profile Package (8mm)
Space Saving Package
Solderable Copper Case
Safety Agency Approvals:
UL 60950
CSA 22.2 60950
PT Series Suffix
(PT1234
x
)
Case/Pin
Configuration
Vertical
Horizontal
SMD
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)
Order
Suffix
N
A
C
Package
C ode
(EPE)
(EPF)
(EPG)
PT4240 Series
10-W Low-Profile 24V-Input
Isolated DC/DC Converter
SLTS145A
(Revised 1/14/2002)
PT4240
+Vout
-Vout
+Vin
-Vin
Remote
On/Off
V
o
(adj)
1
3
5
8, 9
6, 7
10
L
O
A
D
+V
in
-V
in
+V
out
-V
out
Pin-Out Information
Pin Function
1
2
3
Remote On/Off *
Do not connect
–V
in
Do not connect
+V
in
-V
out
-V
out
+V
out
+V
out
10 V
out
Adj *
For further information, see
application notes.
4
5
6
7
8
9
*