http://www.tracopower.com Page 1 of 3
DC/DC Converter TSR 2 Series, 2 A
Models
◆ Ultra compact SIP package
0.55 0.30 0.40 inch
◆ Up to 96 % efficiency
– No heat-sink required
◆ Pin compatible with LMxx
linear regulators
◆ Built in filter capacitors
◆ Operating temperature range
-40°C to +85°C
◆ Excellent line / load regulation
◆ Short circuit protection
◆ 3-year product warranty The new TSR 2 series step-down switching regulators are drop-in replacement
for inefficient LMxx linear regulators. A high efficiency up to 96 % allows full load
operation up to +67°C ambient temperature without the need of any heat-sink
or forced cooling.
The TSR 2 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. The high efficiency and low standby
power consumption makes these regulators an ideal solution for many battery
powered applications.
Models
Order code Input voltage Output voltage Output current Efficiency typ. Capacitive
range max. @ Vin min. @
Vin max.
Load max.
TSR 2-0512 3.0 - 5.5 VDC 1.2 VDC 90 % 86 % 2500 µF
TSR 2-0515 3.0 - 5.5 VDC 1.5 VDC 91 % 88 % 2000 µF
TSR 2-0518 3.0 - 5.5 VDC 1.8 VDC 92 % 90 % 1600 µF
TSR 2-0525 3.8 - 5.5 VDC 2.5 VDC 95 % 92 % 1200 µF
TSR 2-2412 4.6 - 36 VDC* 1.2 VDC 84 % 75 % 2500 µF
TSR 2-2415 4.6 - 36 VDC* 1.5 VDC 86 % 77 % 2000 µF
TSR 2-2418 4.6 - 36 VDC* 1.8 VDC 2.0 A 87 % 79 % 1600 µF
TSR 2-2425 4.6 - 36 VDC* 2.5 VDC 89 % 83 % 120 0 µF
TSR 2-2433 4.75 - 36 VDC* 3.3 VDC 91 % 86 % 900 µF
TSR 2-2450 6.5 - 36 VDC* 5 VDC 94 % 89 % 600 µF
TSR 2-2465 9.0 - 36 VDC* 6.5 VDC 94 % 91 % 470 µF
TSR 2-2490 12 - 36 VDC* 9 VDC 95 % 92 % 330 µF
TSR 2-24120 15 - 36 VDC* 12 VDC 95 % 93 % 270 µF
TSR 2-24150 18 - 36 VDC* 15 VDC 96 % 94 % 200 µF
* For input voltage higher than 20 VDC an input capacitor 22 µF / 50 V is recommend, to prevent damage due to power-on
voltage peaks.
TSR 2 Series, 2 A
http://www.tracopower.com Page 2 of 3
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
Input Specifications
Input current no load 1 mA typ.
Input filter internal capacitor
Output Specifications
Voltage set accuracy ±2 % max.
Regulation – Input variation 0.5 % max.
– Load variation 0 – 100 % 1 % max.
Ripple and noise (20 MHz Bandwidth) 50 mVp-p typ. for Vout ≤ 6.5 VDC
75 mVp-p typ. for Vout ≥ 9.0 VDC
Start up time (constant resistive load) 5 ms typ.
Dynamic load response (50% load step change) 150 μs typ. response time
9, 12 & 15 VDC models: 300 mV typ. peak deviation
other models: 150 mV typ. peak deviation
Short circuit protection continuous, automatic recovery
Overload protection (hiccup mode) 5 Vin models: 8.0 A
other models: 3.6 A
General Specifications
Temperature ranges – Operating (convection cooling 20LFM, 0,1m/s) –40°C to +85°C
– Case temperature +105°C max.
– Storage temperature –55°C to +125°C
Derating see graph below
Humidity (non condensing) 5 - 95 % rel H max.
Shock and vibration acc MIL-STD-810F
Temperature coefficient ±0.02 %/K typ.
Reliability, calculated MTBF (MIL-HDBK-217F at +25°C, ground benign) 13‘520‘000 h
Switching frequency (Pulse frequency modulation) 5 Vin models: 1200 kHz typ.
other models: 410 kHz typ.
Environmental compliance – Reach www.tracopower.com/info/reach-declaration.pdf
– RoHS RoHS directive 2011/65/EU
60 70 80 90 100
100
80
60
40
20
0
Output Power [%]
Ambient Temperature [°C]
-40
30 Vin
24 Vin
15 Vin
12 Vin
Supporting Documents: www.tracopower.com/overview/tsr2
TSR 2 Series, 2 A
www.tracopower.com
© Copyright 2018 Traco Electronic AG Specifications can be changed without notice!
Page 3 of 3
Rev. September 10, 2018
Physical Specifications
Casing material plastic, non-conducting
Potting material Silicone (UL 94V-0 rated)
Package weight 2.6g (0.092oz)
Soldering temperature max. 260°C / 10 sec.
Outline Dimensions
Pin Single
1+Vin
2GND
3+Vout
Pin-Out
Dimensions in [mm], () = Inch
Tolerances: x.xx ±0.5 (±0.02)
x.xxx ±0.25(±0.01)
Pin pitch tolerances ±0.25 (±0.01)
pin dimension tolerance ±0.1 (±0.004)
0.5 (0.02)
10.1 (0.40)
4.1
(0.16)
2.54
0.46
2.54
(0.1) (0.1)
(0.018)
14.0 (0.55)
3.89 (0.16)
7.5 (0.30)
bottom view
123
0.46
(0.018)
4.5
(0.18)
