Datasheet

Non-Isolated DC/DC Converter (POL)
TSRN 1SM Series, 1 A
•
Compact SMD package
•
Suitable for positive & negative output
circuit
•
Adjustable output voltage
•
Wide input up to 42 VDC
•
Remote On/Off input
•
Built in filter capacitors
•
Operation temp. range –40°C to +85°C
•
Excellent line/load regulation
•
Low standby current
•
3-year product warranty
The new TSRN-1SM series are step-down non–isolated switching regulators in
compact SMD package. They are an ideal solution to replace inefficient linear
regulators. The high efficiency up to 95% allows full load operation up to
+55°C (+85°C with derating) ambient temperature without the need of forced
air cooling.
The TSRN-1SM switching regulators provide other significant features over lin-
ear regulators, i.e. better output accuracy (±2%), lower standby current of ~4
mA and no requirement of external capacitors. They are suitable for positive or
negative output circuits and offer a trim input for output voltage adjustment.
The high efficiency, low standby power consumption and remote On/Off func-
tion make these regulators an ideal solution for energy sensitive applications.
Models
Order Code
Output Current
max.
Input Voltage
Range
Output Voltage
nom. (adjustable)
Efficiency
typ.
TSRN 1-0525SM
1'000 mA
3 - 5.5 VDC (5 VDC nom.)
2.5 VDC (1.2 - 3.63 VDC)
96 %
TSRN 1-2433SM
4.6 - 42 VDC (12 VDC nom.)
3.3 VDC (1.5 - 5.5 VDC)
88 %
TSRN 1-2450SM
6.5 - 42 VDC (12 VDC nom.)
5 VDC (2.5 - 8.0 VDC)
92 %
TSRN 1-2490SM
10.5 - 42 VDC (12 VDC nom.)
9 VDC (4.5 - 12.6 VDC)
95 %
TSRN 1-24120SM
13.5 - 42 VDC (24 VDC nom.)
12 VDC (4.5 - 13.5 VDC)
95 %
TSRN 1-24150SM
16.5 - 42 VDC (24 VDC nom.)
15 VDC (4.5 - 15.5 VDC)
96 %
Note
- For input voltage higher 36 VDC an input capacitor 22 µF is required
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October 1, 2019
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