Data Sheet

Non-Isolated DC/DC Converter (POL)
TSR 1 Series, 1 A
•
Up to 96% efficiency – No heat-sink
required
•
Pin compatible with LMxx linear
regulators
•
SIP-package fits existing TO-220
footprint
•
Built in filter capacitors
•
Operation temp. range –40°C to +85°C
•
Short circuit protection
•
Wide input operating range
•
Excellent line / load regulation
•
Low standby current
•
3-year product warranty
The TSR 1 series step-down switching regulators are drop-in replacement for
inefficient 78xx linear regulators. A high efficiency up to 96% allows full load
operation up to +60°C ambient temperature without the need of any heat-sink
or forced cooling. The TSR 1 switching regulators provide other significant fea-
tures over linear regulators, i.e. better output accuracy (±2%), lower standby
current of 2 mA and no requirement of external capacitors. The high efficiency
and low standby power consumption makes these regulators an ideal solution
for many battery powered applications.
Models
Order Code
Output Current
max.
Input Voltage
Range
Output Voltage
nom.
Efficiency
typ.
TSR 1-2412
1'000 mA
4.6 - 36 VDC (9 VDC nom.)
1.2 VDC
74 % (at Vin min.)
TSR 1-2415
1.5 VDC
78 % (at Vin min.)
TSR 1-2418
1.8 VDC
82 % (at Vin min.)
TSR 1-2425
2.5 VDC
87 % (at Vin min.)
TSR 1-2433
4.75 - 36 VDC (9 VDC nom.)
3.3 VDC
91 % (at Vin min.)
TSR 1-2450
6.5 - 36 VDC (12 VDC nom.)
5 VDC
94 % (at Vin min.)
TSR 1-2465
9 - 36 VDC (12 VDC nom.)
6.5 VDC
93 % (at Vin min.)
TSR 1-2490
12 - 36 VDC (24 VDC nom.)
9 VDC
95 % (at Vin min.)
TSR 1-24120
15 - 36 VDC (24 VDC nom.)
12 VDC
95 % (at Vin min.)
TSR 1-24150
18 - 36 VDC (24 VDC nom.)
15 VDC
96 % (at Vin min.)
Note
- For input voltage higher than 32 VDC an external input capacitor (22 µF) is required.
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April 27, 2020
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