Non-Isolated DC/DC Converter (POL)
•
Ultra compact SIP package 0.55 x 0.30 x
0.40 inch
•
Up to 96% efficiency – No heat-sink
required
•
Pin compatible with LMxx linear
regulators
•
•
Built in filter capacitors
•
•
•
Excellent line / load regulation
Operating temperature range -40°C to
+85°C
Short circuit protection
3-year product warranty
TSR 2 Series, 2 A
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
Output Current
max.
Input Voltage
Range
TSR 2-0512
3 - 5.5 VDC (5 VDC nom.)
TSR 2-0515
TSR 2-0518
3.8 - 5.5 VDC (5 VDC nom.)
TSR 2-0525
TSR 2-2412
TSR 2-2415
TSR 2-2418
4.6 - 36 VDC (12 VDC nom.)
2'000 mA
TSR 2-2425
Output Voltage
nom.
Efficiency
typ.
1.2 VDC
90 %
1.5 VDC
91 %
1.8 VDC
92 %
2.5 VDC
95 %
1.2 VDC
84 %
1.5 VDC
86 %
1.8 VDC
87 %
2.5 VDC
89 %
TSR 2-2433
4.75 - 36 VDC (12 VDC nom.)
3.3 VDC
91 %
TSR 2-2450
6.5 - 36 VDC (12 VDC nom.)
5 VDC
94 %
TSR 2-2465
9 - 36 VDC (12 VDC nom.)
6.5 VDC
94 %
TSR 2-2490
12 - 36 VDC (24 VDC nom.)
9 VDC
95 %
TSR 2-24120
15 - 36 VDC (24 VDC nom.)
12 VDC
95 %
TSR 2-24150
18 - 36 VDC (24 VDC nom.)
15 VDC
96 %
Note
- If the input is switched electromechanically, a 22 µF / 50 V electrolytic capacitor at the input is recommended (12 & 24 Vin
models only)
www.tracopower.com
May 14, 2020
Page 1 / 3
TSR 2 Series, 2 A
Input Specifications
Input Current
- At no load
Recommended Input Fuse
- 12 Vin input
5 Vin models:
12 Vin models:
24 Vin models:
5 Vin models:
24 Vin models:
1.2 Vout models:
1.5 Vout models:
1.8 Vout models:
2.5 Vout models:
3.3 Vout models:
5 Vout models:
6.5 Vout models:
Input Filter
1 mA typ.
1 mA typ.
1 mA typ.
2'000 mA (slow blow)
3'150 mA (slow blow)
1'600 mA (slow blow)
1'600 mA (slow blow)
1'600 mA (slow blow)
2'500 mA (slow blow)
2'500 mA (slow blow)
2'500 mA (slow blow)
2'500 mA (slow blow)
(The need of an external fuse has to be assessed
in the final application.)
Internal Capacitor
Output Specifications
Voltage Set Accuracy
Regulation
- Input Variation (Vmin - Vmax)
- Load Variation (0 - 100%)
Ripple and Noise
(20 MHz Bandwidth)
1.2 Vout models:
1.5 Vout models:
1.8 Vout models:
2.5 Vout models:
3.3 Vout models:
5 Vout models:
6.5 Vout models:
9 Vout models:
12 Vout models:
15 Vout models:
1.2 Vout models:
1.5 Vout models:
1.8 Vout models:
2.5 Vout models:
3.3 Vout models:
5 Vout models:
6.5 Vout models:
9 Vout models:
12 Vout models:
15 Vout models:
Capacitive Load
Minimum Load
Temperature Coefficient
Start-up Time
Short Circuit Protection
Overload Protection
Output Current Limitation
Transient Response
- Peak Variation
- Response Time
±2% max.
0.5% max.
1% max.
50 mVp-p typ.
50 mVp-p typ.
50 mVp-p typ.
50 mVp-p typ.
50 mVp-p typ.
50 mVp-p typ.
50 mVp-p typ.
75 mVp-p typ.
75 mVp-p typ.
75 mVp-p typ.
2'500 µF max.
2'000 µF max.
1'600 µF max.
1'200 µF max.
900 µF max.
600 µF max.
470 µF max.
330 µF max.
270 µF max.
200 µF max.
Not required
±0.02 %/K max.
5 ms typ.
Continuous, Automatic recovery
Foldback Mode
400% typ. of Iout max.
(5 Vin models)
180% typ. (other input models)
300 mV typ. / 500 mV max. (50% Load Step)
(24 Vin models)
150 mV typ. / 250 mV max. (50% Load Step)
(other models)
150 µs typ. / 200 µs max. (50% Load Step)
All specifications valid at nominal voltage, full load and +25°C after warm-up time unless otherwise stated.
www.tracopower.com
May 14, 2020
Page 2 / 3
TSR 2 Series, 2 A
General Specifications
Relative Humidity
Temperature Ranges
- Operating Temperature
- Case Temperature
- Storage Temperature
- High Temperature
- Protection Mode
- Measurement Point
Power Derating
Over Temperature
Protection Switch Off
Cooling System
Switching Frequency
Insulation System
Reliability
Environment
- Calculated MTBF
- Vibration
- Thermal Shock
Housing Material
Potting Material
Pin Material
Pin Foundation Plating
Pin Surface Plating
Soldering Profile
Connection Type
Weight
Environmental Compliance - Reach
- RoHS
95% max. (non condensing)
–40°C to +85°C
+105°C max.
–55°C to +125°C
See application note: www.tracopower.com/overview/tsr2
150°C typ. (Automatic recovery)
Internal IC temperature
Natural convection (20 LFM)
1200 kHz typ. (PWM) (5 Vout models)
410 kHz typ. (PWM) (other models)
Non-isolated
13'520'000 h (MIL-HDBK-217F, ground benign)
MIL-STD-810F
MIL-STD-810F
Non-conductive Plastic (UL94 V-0 rated)
Silicone (UL 94 V-0 rated)
Copper
Nickel (2 - 3 µm)
Tin (3 - 5 µm), matte
260°C / 10 s max.
THD (Through-Hole Device)
2.6 g
www.tracopower.com/info/reach-declaration.pdf
www.tracopower.com/info/rohs-declaration.pdf
Supporting Documents
Overview Link (for additional Documents)
www.tracopower.com/overview/tsr2
4.1
0.5 (0.02)
Pinout
1
2
3
(0.16)
10.1 (0.40)
Outline Dimensions
0.5 (0.02)
2 x 2.54 (2 x 0.10)
Pin
Function
1
+Vin
2
GND
3
+Vout
4.5 (0.18)
(0.16)
3.89
7.50 (0.30)
14.0 (0.55)
0.46 x 0.46
Bottom View
(0.018 x 0.018)
Dimensions in mm (inch)
Tolerances: x.xx ±0.5 (±0.02)
Tolerances: x.xxx ±0.25 (±0.01)
Pin pich tolerances: ±0.25 (±0.01)
Pin dimension tolerance: ±0.1 (±0.004)
© Copyright 2020 Traco Electronic AG
Specifications can be changed without notice.
www.tracopower.com
Rev. May 14, 2020
Page 3 / 3
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