TSRN 1-2450

Non-Isolated DC/DC Converter (POL) • SIP-package fits existing TO-220 footprint • Suitable for positive & negative output circuit • Pin compatible with LMxx linear regulators • • • • Built in filter capacitors • • • Wide input range up to 36 VDC Operation temp. range –40°C to +85°C No heat-sink required Over-temperature & short circuit protection TSRN 1 Series, 1 A The new TSRN 1 series step-down switching regulators are drop-in replacement for inefficient 78xx linear regulators. A high efficiency up to 95% allows full load operation up to +70°C (+85°C with derating) ambient temperature without the need of any heat-sink or forced air cooling. The TSRN-1 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. 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. Excellent line/load regulation 3-year product warranty Models Order Code Output Current max. Input Voltage Range Output Voltage nom. Efficiency typ. 1.5 VDC 77 % (at Vin min.) 1.8 VDC 81 % (at Vin min.) 2.5 VDC 84 % (at Vin min.) TSRN 1-2415 TSRN 1-2418 4.6 - 36 VDC (12 VDC nom.) TSRN 1-2425 3.3 VDC 88 % (at Vin min.) 6.5 - 36 VDC (12 VDC nom.) 5 VDC 92 % (at Vin min.) TSRN 1-2465 8 - 36 VDC (12 VDC nom.) 6.5 VDC 93 % (at Vin min.) TSRN 1-2433 1'000 mA TSRN 1-2450 TSRN 1-2490 10.5 - 36 VDC (12 VDC nom.) 9 VDC 95 % (at Vin min.) TSRN 1-24120 13.5 - 36 VDC (24 VDC nom.) 12 VDC 95 % (at Vin min.) TSRN 1-24150 16.5 - 36 VDC (24 VDC nom.) 15 VDC 96 % (at Vin min.) Options Suffix A Note - Optional models with angular pin version (see outline dimensions) - For external circuit proposal for negative output voltage, refer to application note: www.tracopower.com/overview/tsrn1 www.tracopower.com June 3, 2022 Page 1 / 4 TSRN 1 Series, 1 A Input Specifications Input Current - At no load Reflected Ripple Current Recommended Input Fuse 12 Vin models: 2 mA typ. 24 Vin models: 3 mA typ. 100 mAp-p typ. 12 Vin models: 2'000 mA (slow blow) 24 Vin models: 2'000 mA (slow blow) (The need of an external fuse has to be assessed in the final application.) Internal Capacitor Input Filter Output Specifications Voltage Set Accuracy Regulation - Input Variation (Vmin - Vmax) - Load Variation (10 - 100%) Ripple and Noise (20 MHz Bandwidth) 24 Vin 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: Capacitive Load Minimum Load Temperature Coefficient Start-up Time Start-up Overshoot Voltage Short Circuit Protection Output Current Limitation Transient Response - Peak Variation - Response Time ±2% max. 0.2% max. 0.6% max. (1.5 Vout models, straight pin vers.) 1.2% max. (1.5 Vout models, angular pin vers.) 0.4% max. (1.8 Vout models, straight pin vers.) 1.2% max. (1.8 Vout models, angular pin vers.) 0.4% max. (other output models, both pin vers.) 75 mVp-p max. 50 mVp-p max. 50 mVp-p max. 50 mVp-p max. 50 mVp-p max. 50 mVp-p max. 50 mVp-p max. 75 mVp-p max. 470 µF max. Not required ±0.015 %/K max. 5 ms typ. 1% max. Continuous, Automatic recovery 200% typ. of Iout max. 150 mV typ. / 250 mV max. (50% Load Step) 250 µs typ. / 350 µs max. (50% Load Step) General Specifications Relative Humidity Temperature Ranges Power Derating Over Temperature Protection Switch Off - Operating Temperature - Case Temperature - Storage Temperature - High Temperature - Protection Mode - Measurement Point Cooling System Switching Frequency Insulation System Reliability Washing Process - Calculated MTBF 95% max. (non condensing) –40°C to +85°C +100°C max. –55°C to +125°C See application note: www.tracopower.com/overview/tsrn1 170°C typ. (Automatic recovery) Internal IC temperature Natural convection (20 LFM) 240 - 360 kHz (PWM) (1.5 - 3.3 Vout models) 464 - 696 kHz (PWM) (5 - 15 Vout models) Non-isolated 20'000'000 h (MIL-HDBK-217F, ground benign) Allowed (hermetical product) See Cleaning Guideline: www.tracopower.com/info/cleaning.pdf All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated. www.tracopower.com June 3, 2022 Page 2 / 4 TSRN 1 Series, 1 A Environment MIL-STD-810F EN 61373 MIL-STD-810F EN 61373 MIL-STD-810F Non-conductive Plastic (UL 94 V-0 rated) Silicone (UL 94 V-0 rated) Copper Nickel (2 - 3 µm) Tin (3 - 5 µm), matte Plastic Case PCB Mount THD (Through-Hole Device) SIP3 Wave Soldering 265°C / 10 s max. 1.9 g www.tracopower.com/info/reach-declaration.pdf REACH SVHC list compliant REACH Annex XVII compliant www.tracopower.com/info/rohs-declaration.pdf Exemptions: 7a, 7c-I (RoHS exemptions refer to the component concentration only, not to the overall concentration in the product (O5A rule). The SCIP number is provided on request.) - Vibration - Mechanical Shock - Thermal Shock Housing Material Potting Material Pin Material Pin Foundation Plating Pin Surface Plating Housing Type Mounting Type Connection Type Footprint Type Soldering Profile Weight Environmental Compliance - REACH Declaration - RoHS Declaration Supporting Documents Overview Link (for additional Documents) www.tracopower.com/overview/tsrn1 Outline Dimensions Straight pin version (Standard) 7.5 (0.30) Bottom view Pinout 2.4 (0.095) 0.25 (0.01) 0.5 (0.02) Pin Function 1 +Vin 2 GND 3 +Vout 3 4.1 2 3.3 2.542.54 (0.13) (0.1) (0.1) 10.2 (0.40) (0.16) 1 0.5 (0.02) 11.7 (0.46) Dimensions in mm (inch) Tolerances: x.xx ±0.5 (x.x ±0.02) Tolerances: x.xxx ±0.25 (x.xx ±0.01) Pin pich tolerances: ±0.25 (±0.01) Pin dimension tolerances: ±0.1 (±0.004) All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated. www.tracopower.com June 3, 2022 Page 3 / 4 TSRN 1 Series, 1 A Angular pin version (Suffix A) 0.5 (0.02) 1.5 (0.06) 7.5 (0.30) 2.3 (0.09) 4.1 (0.16) Bottom view Pinout Pin Function 1 +Vin 2 GND 3 +Vout 0.25 (0.01) 1 2 3 3.3 2.54 2.54 (0.13) (0.1) (0.1) 10.2 (0.40) 0.5 (0.02) 11.7 (0.46) Dimensions in mm (inch) Tolerances: x.xx ±0.5 (x.x ±0.02) Tolerances: x.xxx ±0.25 (x.xx ±0.01) Pin pich tolerances: ±0.25 (±0.01) Pin dimension tolerances: ±0.1 (±0.004) © Copyright 2022 Traco Electronic AG Specifications can be changed without notice. www.tracopower.com Rev. June 3, 2022 Page 4 / 4