Datasheet

Non-Isolated DC/DC Converter (POL)
TSRN 1 Series, 1 A
•
SIP-package fits existing TO-220
footprint
•
Suitable for positive & negative output
circuit
•
Pin compatible with LMxx linear
regulators
•
Built in filter capacitors
•
Operation temp. range –40°C to +85°C
•
No heat-sink required
•
Over-temperature & short circuit
protection
•
Wide input range up to 42 VDC
•
Excellent line/load regulation
•
3-year product warranty
The new TSRN-1 series step-down switching regulators are drop-in replace-
ment for inefficient 78xx linear regulators. A high efficiency up to 95% allows
full load operation up to +70°C (+85°C with derating) ambient temperature
without the need of any heat-sink or forced air cooling.
The TSRN-1 switching regulators provide other significant features over linear
regulators, i.e. better output accuracy (±2%), lower standby current of ~2 mA
and no requirement of external capacitors. They are suitable for positive or neg-
ative output circuits. The high efficiency and low standby power consumption
make these regulators an ideal solution for energy sensitive applications.
Models
Order Code
Output Current
max.
Input Voltage
Range
Output Voltage
nom.
Efficiency
typ.
TSRN 1-2415
1'000 mA
4.6 - 42 VDC (12 VDC nom.)
1.5 VDC
77 % (at Vin min.)
TSRN 1-2418
1.8 VDC
81 % (at Vin min.)
TSRN 1-2425
2.5 VDC
84 % (at Vin min.)
TSRN 1-2433
3.3 VDC
88 % (at Vin min.)
TSRN 1-2450
6.5 - 42 VDC (12 VDC nom.)
5 VDC
92 % (at Vin min.)
TSRN 1-2465
8 - 42 VDC (12 VDC nom.)
6.5 VDC
93 % (at Vin min.)
TSRN 1-2490
10.5 - 42 VDC (12 VDC nom.)
9 VDC
95 % (at Vin min.)
TSRN 1-24120
13.5 - 42 VDC (24 VDC nom.)
12 VDC
95 % (at Vin min.)
TSRN 1-24150
16.5 - 42 VDC (24 VDC nom.)
15 VDC
96 % (at Vin min.)
Options
Suffix A
- Models with angular pin version (see outline dimensions)
Note
- For input voltage higher 36 VDC an input capacitor 22 µF is required
- For external circuit proposal for negative output voltage, refer to application note
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October 1, 2019
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