Data Sheet

DC/DC Converters
TSRN-1 Series, 1 A Switching Regulator
Features
◆ 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 protection
The new TSRN-1 series step-down switching regulators are drop-in replacement
◆ Short circuit protection
for inefficient 78xx linear regulators. A high efficiency up to 95 % allows full load
◆ Wide input range up to 42 VDC
operation up to +70°C (+85°C with derating) ambient temperature without the need
◆ Excellent line / load regulation
of any heat-sink or forced air cooling.
The TSRN-1 switching regulators provide other significant features over linear regu◆ Low standby current
lators, i.e. better output accuracy (±2 %), lower standby current of ~2 mA and no
◆ 3-year product warranty
requirement of external capacitors. They are suitable for positive or negative output
circuits. The high efficiency and low standby power consumption make these regulators an ideal solution for energy sensitive applications.
Models
Order code 1)
straight pins
angular pins
Input voltage
Output voltage
Output current
range 2)/ (nominal)
max.
Efficiency typ.
@ Vin min.
@ Vin max.
Positive output circuit
TSRN 1-2415
TSRN 1-2415A
4.6 – 42 VDC (12 VDC)
1.5 VDC
77 %
66 %
TSRN 1-2418
TSRN 1-2418A
4.6 – 42 VDC (12 VDC)
1.8 VDC
80 %
70 %
TSRN 1-2425
TSRN 1-2425A
4.6 – 42 VDC (12 VDC)
2.5 VDC
TSRN 1-2433
TSRN 1-2433A
4.6 – 42 VDC (12 VDC)
3.3 VDC
TSRN 1-2450
TSRN 1-2450A
6.5 – 42 VDC (12 VDC)
5.0 VDC
TSRN 1-2465
TSRN 1-2465A
8.0 – 42 VDC (12 VDC)
6.5 VDC
1.0 A
83 %
75 %
87 %
79 %
91 %
83 %
93 %
86 %
TSRN 1-2490
TSRN 1-2490A
10.5 – 42 VDC (12 VDC)
9.0 VDC
94 %
88 %
TSRN 1-24120
TSRN 1-24120A
13.5 – 42 VDC (24 VDC)
12 VDC
95 %
91 %
TSRN 1-24150
TSRN 1-24150A
16.5 – 42 VDC (24 VDC)
15 VDC
95 %
92 %
Negative output circuit
TSRN 1-2415
TSRN 1-2415A
4.6 – 32 VDC (12 VDC)
TSRN 1-2418
TSRN 1-2418A
TSRN 1-2425
TSRN 1-2425A
TSRN 1-2433
–1.5 VDC
0.6 A
69 %
64 %
4.6 – 32 VDC (12 VDC)
–1.8 VDC
0.6 A
72 %
67 %
4.6 – 32 VDC (12 VDC)
–2.5 VDC
0.6 A
72 %
74 %
TSRN 1-2433A
4.6 – 32 VDC (12 VDC)
–3.3 VDC
0.6 A
74 %
77 %
TSRN 1-2450
TSRN 1-2450A
6.5 – 31 VDC (12 VDC)
–5.0 VDC
0.4 A
79 %
78 %
TSRN 1-2465
TSRN 1-2465A
8.0 – 29 VDC (12 VDC)
–6.5 VDC
0.3 A
84 %
80 %
TSRN 1-2490
TSRN 1-2490A
10.5 – 27 VDC (12 VDC)
–9.0 VDC
0.3 A
85 %
82 %
TSRN 1-24120
TSRN 1-24120A
13.5 – 24 VDC (12 VDC)
–12 VDC
0.3 A
85 %
85 %
TSRN 1-24150
TSRN 1-24150A
16.5 – 21 VDC (12 VDC)
–15 VDC
0.2 A
85 %
84 %
1) Same order code for positive and negative output operation, see page 3 for circuits.
2) For input voltage higher 36 VDC an input capacitor 22 µF/ 50 V is required
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DC/DC Converters
TSRN-1 Series
1A
Input Specifications
No load input current
<= 3..3 VDC output models: 1 mA typ.
>= 5.0 VDC Output models: 3 mA typ
Reflected ripple current
100 mA typ.
Input filter internal capacitors
Output Specifications
Voltage set accuracy ±2 % (at full load)
Regulation
– Input variation
– Load variation (10 – 100 %)
1.5 VDC models:
1.8 VDC models:
other models: 0.2 %
0.6 % straight pin vers., 1.2 % angular pin vers.
0.4 % straight pin vers., 1.2 % angular pin vers.
0.4 % (all versions)
Startup voltage overshoot 1.0 % max.
Minimum load not required
Ripple and noise (20 MHz Bandwidth)
1.5 – 6.5 VDC models: 50 mVpk-pk max.
9 – 15 VDC models: 75 mVpk-pk max.
Temperature coefficient ±0.015 % / °C max.
Dynamic load response (change of 50% to 100% load)
150 mV max. peak variation
250 µS max. response time
Startup time
– start up time at nominal Vin, constant resistive load 5 mS typ.
– rise time for 10 % to 90 % Vout 3.5 mS typ.
Short circuit protection continuous, automatic recovery
Current limitation (for positive output circuit)
at 2.0 A typ.
Capacitive load
470 µF max.
General Specifications
Temperature ranges
– Operating –40°C to +85°C
– Max. casing temperature
+100°C
– Storage –55°C to +125°C
Derating 2.7 %/K above +70°C
Thermal shock, mechanical shock & vibration EN 61373, MIL-STD-810F
– Test conditions
www.tracopower.com/products/mil810.pdf
Overtemperature protection at +170°C (on internal IC)
Humidity (non condensing) 90 % rel H max.
Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign) >6’000’000 h
Isolation voltage none
Switching frequency
1.5 – 3.3 VDC models: 300 kHz typ.
5.0 – 15 VDC models: 580 kHz typ.
Physical Specifications
Casing material non-conductive plastic
Potting material
silicon (flammability to UL 94V-0 rated)
Weight 1.9 g (0.07 oz)
Soldering profile max. +265°C / 10 sec. (wave soldering)
Environmental compliance
– Reach www.tracopower.com/products/tsrn1-reach.pdf
– RoHS RoHS directive 2011/65/EU
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
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DC/DC Converters
TSRN-1 Series
1A
Applications notes
Positive output operation:
+Vin
1
TSRN 1
C1
Input
+Vout
3
Output
2
GND
C1 = 22 µF/ 50 V (required only if input
voltage is higher than 36 V)
GND
Negative output operation:
GND
+Vin
1
C1
GND
3
TSRN 1
C2
C1 = 10 µF / 50 V, 1210 X5R MLCC
C2 = 10 µF / 25 V, 1206 X5R MLCC
2
-Vout
Outline Dimensions
Straight pin version
Angular pin version (suffix A)
0.5 (0.02)
0.5 (0.02)
1.5 (0.06)
7.5 (0.30)
2.3 (0.09)
4.1
11.7 (0.46)
(0.16)
7.5 (0.30)
Bottom view
2.4 (0.095)
0.3 (0.01)
Bottom view
0.3 (0.01)
11.7 (0.46)
3.3
2.54 2.54
3.3
2
3
10.2 (0.40)
10.2 (0.40)
1
0.5 (0.02)
3
4.1
2
(0.16)
1
0.5 (0.02)
Pin-Out
2.54 2.54
(0.13) (0.1) (0.1)
(0.13) (0.1) (0.1)
Pin
pos.
neg.
1
+Vin
+Vin
2
GND
-Vout
3
+Vout
GND
Dimensions in [mm], () = Inch
Pin pitch tolerances: ±0.25 (±0.01)
Pin profile tolerance: ±0.1 (±0.004)
Other tolerances: ±0.5 (±0.02)
Solder Pad Layout: www.tracopower.com/products/tsrn1-solderpadlayout.pdf
Specifications can be changed any time without notice.
Rev. 11/12
Jenatschstrasse 1 · CH-8002 Zurich · Switzerland
Tel. +41 43 311 45 11 · Fax +41 43 311 45 45 · info@traco.ch · www.tracopower.com
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