TSR1-5E TRACOPOWER | Alldatasheet

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Technical content

Non-Isolated DC/DC Converter (POL) TSR 1.5E Series, 1.5 A

  • Highly cost efficient design
  • Pin compatible with TO-220 package 78xx linear regulators
  • Operation temperature range –40°C to +85°C without derating
  • Efficiency up to 97%
  • Wide input operating range 7-36 VDC
  • Short circuit protection
  • Excellent line / load regulation
  • 3-year product warranty The TSR 1.5E is a 1.5 Ampere step-down switching regulator series and a drop-in replacement for inefficient LM78xx linear regulators. This series comes in a compact SIP-3 open frame package and complements our existing POL portfolio with a series focusing strongly on a cost efficient design while main- taining our quality standards. There are 3 output voltages available: 3.3, 5.0 and 12VDC. The effective design allows full load operation up to +85°C ambi- ent temperature without the need of any heat sink or forced cooling. The TSR 1.5E switching regulators provide other significant features over linear regula- tors, i.e. better output accuracy, lower standby current and no requirement of external capacitors. The TSR 1.5E series offers a broad application range in many environments and is especially suited for high volume projects where the series will help to reduce production cost by delivering not only a highly cost ef- ficient but also reliable solution. Models Order Code Output Current Input Voltage Output Voltage Efficiency max. Range nom. typ. TSR 1.5-2433E 1'500 mA 7 - 36 VDC (24 VDC nom.) 3.3 VDC 93 % (at Vin min.) TSR 1.5-2450E 5 VDC 95 % (at Vin min.) TSR 1.5-24120E 1'000 mA 15 - 36 VDC (24 VDC nom.) 12 VDC 97 % (at Vin min.) Note - For input voltage higher 24 VDC an input capacitor of 22 µF is required www.tracopower.com November 30, 2022 Page 1 / 4

Input Current - At no load 15 mA max. Surge Voltage 40 VDC max. (1 s max.) Input Inrush Current 70 A typ. (12 Vout model) 30 A typ. (other models) Recommended Input Fuse 2'000 mA (fast acting) (The need of an external fuse has to be assessed in the final application.) Input Filter Internal Capacitor Input Specifications Voltage Set Accuracy ±4% max. (at 50% load) Regulation - Input Variation (Vmin - Vmax) 0.7% max. - Load Variation (25 - 100%) 0.7% max. Ripple and Noise (20 MHz Bandwidth) 3.3 Vout models: 40 mVp-p max. (w/ 47 µF) 5 Vout models: 75 mVp-p max. (w/ 47 µF) 12 Vout models: 75 mVp-p max. (w/ 47 µF) Capacitive Load 3.3 Vout models: 1'200 µF max. 5 Vout models: 660 µF max. 12 Vout models: 470 µF max. Minimum Load Not required Temperature Coefficient ±0.02 %/K max. Hold-up Time 40 µs min. (3.3 Vout model) 160 µs min. (5 Vout model) 1'400 µs min. (12 Vout model) Start-up Time 2.1 ms max. Short Circuit Protection Continuous, Automatic recovery Output Current Limitation 200 - 500% of Iout max. Transient Response - Peak Variation 70 mV max. (50% to 100% Load Step) (3.3 Vout model) 90 mV max. (50% to 100% Load Step) (5 Vout model) 130 mV max. (50% to 100% Load Step) (12 Vout model) - Response Time 75 µs typ. (50% to 100% Load Step) Output Specifications EMI Emissions - Conducted Emissions EN 55032 class A (with external filter) EN 55032 class B (with external filter) - Radiated Emissions EN 55032 class A (with external filter) EN 55032 class B (with external filter) External filter proposal: www.tracopower.com/overview/tsr1-5e EMC Specifications Relative Humidity 95% max. (non condensing) Temperature Ranges - Operating Temperature –40°C to +85°C - Case Temperature +130°C max. - Storage Temperature –55°C to +125°C Power Derating - High Temperature Depending on model See application note: www.tracopower.com/overview/tsr1-5e Over Temperature Protection Switch Off - Protection Mode 130°C to 140°C (Automatic recovery at 130°C typ.) - Measurement Point Internal IC temperature Cooling System Natural convection (20 LFM) Altitude During Operation 2'000 m max. General Specifications TSR 1.5E Series, 1.5 A All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated. www.tracopower.com November 30, 2022 Page 2 / 4

Switching Frequency 320 - 500 kHz (PWM) 410 kHz typ. (PWM) Insulation System Non-isolated Reliability - Calculated MTBF 16'000'000 h (12 Vout model) 6'800'000 h (other models) (MIL-HDBK-217F, ground benign) Washing Process Not allowed (non-hermetical product) Pin Material Copper Alloy Pin Foundation Plating Nickel (0.5 µm min.) Pin Surface Plating Gold (10 nm min.), bright Housing Type Open Frame Mounting Type PCB Mount Connection Type THD (Through-Hole Device) Footprint Type SIP3 Soldering Profile Wave Soldering 265 °C / 5 s max. Weight 2 g Thermal Impedance - Case to Ambient 60 K/W typ. Environmental Compliance - REACH Declaration www.tracopower.com/info/reach-declaration.pdf REACH SVHC list compliant REACH Annex XVII compliant - RoHS Declaration 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.) Supporting Documents Overview Link (for additional Documents) www.tracopower.com/overview/tsr1-5e TSR 1.5E Series, 1.5 A All specifications valid at nominal voltage, resistive full load and +25°C after warm-up time, unless otherwise stated. www.tracopower.com November 30, 2022 Page 3 / 4

TSR 1.5E Series, 1.5 A 14.87 (0.59) 6.45 (0.25) 2.54 (0.10) 4.50 (0.18) 2.82 (0.11) 0.64 (0.03) 5.08 (0.20) Pin 1 All dimensions in mm (inch) General Tolerances: ±0.5 (±0.02) Pin Pitch Tolerance: ±0.25 (±0.01) Pin Assignment Pin Function 1 + Vin

2 Common Ground

© Copyright 2022 Traco Electronic AG Specification s can be changed without notice. www.tracopower.com Rev. November 30, 2022 Page 4 / 4