TSR 1-2425

Non-Isolated DC/DC Converter (POL) • Up to 96% efficiency – No heat-sink required • Pin compatible with LMxx linear regulators • SIP-package fits existing TO-220 footprint • • • • • • • Built in filter capacitors Operation temp. range –40°C to +85°C Short circuit protection Wide input operating range Excellent line / load regulation TSR 1 Series, 1 A The TSR 1 series step-down switching regulators are drop-in replacement for inefficient 78xx linear regulators. A high efficiency up to 96% allows full load operation up to +60°C ambient temperature without the need of any heat-sink or forced cooling. The TSR 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. The high efficiency and low standby power consumption makes these regulators an ideal solution for many battery powered applications. Low standby current 3-year product warranty Models Order Code Output Current Input Voltage Output Voltage Efficiency max. Range nom. typ. TSR 1-2412 1.2 VDC 74 % (at Vin min.) TSR 1-2415 1.5 VDC 78 % (at Vin min.) 1.8 VDC 82 % (at Vin min.) 2.5 VDC 87 % (at Vin min.) 4.75 - 36 VDC (9 VDC nom.) 3.3 VDC 91 % (at Vin min.) 6.5 - 36 VDC (12 VDC nom.) 5 VDC 94 % (at Vin min.) TSR 1-2465 9 - 36 VDC (12 VDC nom.) 6.5 VDC 93 % (at Vin min.) 4.6 - 36 VDC (9 VDC nom.) TSR 1-2418 TSR 1-2425 TSR 1-2433 TSR 1-2450 1'000 mA TSR 1-2490 12 - 36 VDC (24 VDC nom.) 9 VDC 95 % (at Vin min.) TSR 1-24120 15 - 36 VDC (24 VDC nom.) 12 VDC 95 % (at Vin min.) TSR 1-24150 18 - 36 VDC (24 VDC nom.) 15 VDC 96 % (at Vin min.) Note - For input voltage higher than 32 VDC an external input capacitor (22 µF) is required. www.tracopower.com September 20, 2023 Page 1 / 4 TSR 1 Series, 1 A Input Specifications Input Current - At no load 9 Vin models: 12 Vin models: 24 Vin models: 9 Vin models: 12 Vin models: 24 Vin models: - At full load Reflected Ripple Current Recommended Input Fuse - 9 Vin input 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: - 12 Vin input - 24 Vin input Input Filter 1 mA typ. 1 mA typ. 1 mA typ. 1'000 mA max. 1'000 mA max. 1'000 mA max. (at Vin min.) 150 mAp-p typ. 630 mA (slow blow) 800 mA (slow blow) 800 mA (slow blow) 1'250 mA (slow blow) 1'250 mA (slow blow) 1'600 mA (slow blow) 1'250 mA (slow blow) 1'250 mA (slow blow) 1'600 mA (slow blow) 1'600 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 (10 - 100%) Ripple and Noise (20 MHz Bandwidth) Capacitive Load Minimum Load Temperature Coefficient Start-up Overshoot Voltage Short Circuit Protection Output Current Limitation Transient Response - Peak Variation - Response Time ±2% max. 0.2% max. 0.6% max. (1.2 & 1.5 Vout models) 0.4% max. (other models) 9 Vin models: 50 mVp-p typ. 12 Vin models: 50 mVp-p typ. 24 Vin models: 75 mVp-p typ. 470 µF max. Not required ±0.015 %/K max. 1% max. Continuous, Automatic recovery 250% typ. of Iout max. 150 mV typ. / 200 mV max. (50% Load Step) 250 µs typ. / 350 µs max. (50% Load Step) EMC Specifications EMI Emissions - Conducted Emissions - Radiated Emissions EN 55032 class A (with external filter) EN 55032 class A (with external filter) External filter proposal: www.tracopower.com/overview/tsr1 General Specifications Relative Humidity Temperature Ranges Power Derating - Operating Temperature - Storage Temperature - High Temperature Over Temperature Protection Switch Off - Protection Mode - Measurement Point Cooling System 95% max. (non condensing) –40°C to +85°C –55°C to +125°C 2.4 %/K above 60°C See application note: www.tracopower.com/overview/tsr1 150°C typ. (Automatic recovery) Internal IC temperature Natural convection (20 LFM) All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated. www.tracopower.com September 20, 2023 Page 2 / 4 TSR 1 Series, 1 A Switching Frequency Insulation System Reliability Washing Process Environment 400 - 600 kHz (PWM) 500 kHz typ. (PWM) Non-isolated 25'710'000 h (MIL-HDBK-217F, ground benign) According to Cleaning Guideline www.tracopower.com/info/cleaning.pdf MIL-STD-810F 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 Lead-Free 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).) 9d15ed19-93d9-4ef5-b2ab-a4e3f77f58e2 - Calculated MTBF - Vibration - 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 - SCIP Reference Number Supporting Documents Overview Link (for additional Documents) www.tracopower.com/overview/tsr1 All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated. www.tracopower.com September 20, 2023 Page 3 / 4 TSR 1 Series, 1 A Outline Dimensions 0.5 (0.02) 4.1 1 2 3 (0.16) 10.1 (0.40) Pinout Pin Function 1 +Vin 2 GND 3 +Vout 0.5 (0.02) 2 x 2.54 (2 x 0.10) 3.3 (0.13) 11.7 (0.46) 5.5 (0.22) 7.5 (0.30) 0.50 x 0.25 (0.02 x 0.01) Bottom View Dimensions in mm (inch) Tolerances: ±0.5 (±0.02) Pin pich tolerances: ±0.25 (±0.01) Pins: ±0.05 (±0.002) © Copyright 2023 Traco Electronic AG Specifications can be changed without notice. www.tracopower.com Rev. September 20, 2023 Page 4 / 4