Data Sheet

Non-Isolated DC/DC Converter (POL)
TSR 1.5E Series, 1.5 A
•
Highly cost efficient design
•
Pin compatible with TO-220 package
78xx linear regulators
•
Operation temperature. range –40°C to
+85°C without derating
•
Efficiency up to 97%
•
Wide input operating range 7-36 VDC
•
Short circuit protection
•
Excellent line / load regulation
•
3-year product warranty
The TSR 1.5E is a 1.5 Ampere step-down switching regulator series and a
drop-in replacement for inefficient LM78xx linear regulators. This series comes
in a compact SIP-3 open frame package and complements our existing POL
portfolio with a series focusing strongly on a cost efficient design while main-
taining our quality standards. There are 3 output voltages available: 3.3, 5.0
and 12VDC. The effective design allows full load operation up to +85°C ambi-
ent temperature without the need of any heat sink or forced cooling. The TSR
1.5E switching regulators provide other significant features over linear regula-
tors, i.e. better output accuracy, lower standby current and no requirement of
external capacitors. The TSR 1.5E series offers a broad application range in
many environments and is especially suited for high volume projects where the
series will help to reduce production cost by delivering not only a highly cost ef-
ficient but also reliable solution.
Models
Order Code
Output Current
max.
Input Voltage
Range
Output Voltage
nom.
Efficiency
typ.
TSR 1.5-2433E
1'500 mA
7 - 36 VDC (24 VDC nom.)
3.3 VDC
93 % (at Vin min.)
TSR 1.5-2450E
5 VDC
95 % (at Vin min.)
TSR 1.5-24120E
1'000 mA
15 - 36 VDC (24 VDC nom.)
12 VDC
97 % (at Vin min.)
Note
- For input voltage higher 24 VDC an input capacitor of 22 µF is required
www.tracopower.com
February 12, 2021
Page 1 / 3