DC/DC Converters
TSR-3 Series, 3 A
Features
◆ High performance 3 Amp. switching regulator
◆ Suitable for positive & negative output circuit
◆ High efficiency up to 95 %
◆ Adjustable output voltages
◆ Wide input voltage ranges 2.5–5.5,
4.5–14 and 10–30 VDC
◆ Over-temperature protection
◆ Short circuit protection
◆ Remote On/Off input
◆ Low output ripple & noise
The TSR 3 models are non isolated step down switching regulators. Since production
◆ 3-year product warranty
May 2013 they can also be operated with negative output voltage.
They come in a very compact open frame package of 15.5 x 9.4 x 6.2mm. The high
efficiency of up to 95% admits a full load operation up to 50°C and up to 85°C
with 50% current reduction. A low standby current, a very wider input range and
no requirement for heatsink give these switching regulators a significant advantage
over linear regulators.
Togther with a remote On/Off input and protection against short circuit and over
temperature the TSR 3 Series models are ideal point of load regulators for high reli-
able and energy critical applications.
Models
Order code *
Input voltage range
Output voltage
adjustable 6)
Output current max.
Efficiency typ.
Positive output circuit
2.5 – 5,5 VDC 1)
4.5 – 14 VDC 2)
10 – 30 VDC 3)
TSR 3-0533
TSR 3-1250
TSR 3-2450
TSR 3-24150
0.6 – 3.3 VDC
0.59 – 6.0 VDC
3.0 – 6.0 VDC
5.0 – 15 VDC
95 % at 2.5 VDC
93 % at 3.3 VDC
91 % at 5.0 VDC
95 % at 12 VDC
3 A
10 – 30 VDC 3)
Negative output circuit
1.5 A at |Vout| >3.3 VDC
2.2 A at |Vout| <3.3 VDC
TSR 3-1250
4.7 – 13 VDC 4)
-0.59 – -6.0 VDC
90 % at -3.3 VDC
TSR 3-2450
10 – 27 VDC 5)
10 – 25 VDC 5)
-3.0 – -6.0 VDC
-5.0 – -15 VDC
2.2 A
1.2 A
90 % at -5.0 VDC
91 % at -12 VDC
TSR 3-24150
* Suffix A for models with angular pins (see dimensions), availability on demand, no stocking item.
1) input voltage must be at least 0.5 V higher than output voltage
2) input voltage must be at least 2.0 V higher than output voltage, max. 9 VDC if output is <0.9 VDC
3) input voltage must be at least 3.0 V higher than output voltage
4) max. input voltage = 14-|Vout|
5) max. input voltage = 30-|Vout|
6) open trim input = min. output voltage
http://www.tracopower.com
Page 1 of 3