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 http://www.tracopower.com Page 1 of 3 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. http://www.tracopower.com Page 2 of 3 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 · [email protected] · www.tracopower.com Page 3 of 3