TSR1 TRACOPOWER | Alldatasheet

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Technical content

Non-Isolated DC/DC Converter (POL) TSR 1 Series, 1 A

  • 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
  • Low standby current
  • 3-year product warranty 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 fea- tures 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. Models Order Code Output Current Input Voltage Output Voltage Efficiency max. Range nom. typ. TSR 1-2412 1'000 mA 4.6 - 36 VDC (9 VDC nom.) 1.2 VDC 74 % (at Vin min.) TSR 1-2415 1.5 VDC 78 % (at Vin min.) TSR 1-2418 1.8 VDC 82 % (at Vin min.) TSR 1-2425 2.5 VDC 87 % (at Vin min.) TSR 1-2433 4.75 - 36 VDC (9 VDC nom.) 3.3 VDC 91 % (at Vin min.) TSR 1-2450 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.) 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 November 30, 2022 Page 1 / 3

Input Current - At no load 9 Vin models: 1 mA typ. 12 Vin models: 1 mA typ. 24 Vin models: 1 mA typ. - At full load 9 Vin models: 1'000 mA max. 12 Vin models: 1'000 mA max. 24 Vin models: 1'000 mA max. (at Vin min.) Reflected Ripple Current 150 mAp-p typ. Recommended Input Fuse - 9 Vin input 1.2 Vout models: 630 mA (slow blow)

1.5 Vout models: 800 mA (slow blow)

1.8 Vout models: 800 mA (slow blow)

2.5 Vout models: 1'250 mA (slow blow)

3.3 Vout models: 1'250 mA (slow blow)

  • 12 Vin input 5 Vout models: 1'600 mA (slow blow)

6.5 Vout models: 1'250 mA (slow blow)

  • 24 Vin input 9 Vout models: 1'250 mA (slow blow)

12 Vout models: 1'600 mA (slow blow)

15 Vout models: 1'600 mA (slow blow)

(The need of an external fuse has to be assessed in the final application.) Input Filter Internal Capacitor Input Specifications Voltage Set Accuracy ±2% max. Regulation - Input Variation (Vmin - Vmax) 0.2% max. - Load Variation (10 - 100%) 0.6% max. (1.2 & 1.5 Vout models) 0.4% max. (other models) Ripple and Noise (20 MHz Bandwidth) 9 Vin models: 50 mVp-p typ. 12 Vin models: 50 mVp-p typ. 24 Vin models: 75 mVp-p typ. Capacitive Load 470 µF max. Minimum Load Not required Temperature Coefficient ±0.015 %/K max. Start-up Overshoot Voltage 1% max. Short Circuit Protection Continuous, Automatic recovery Output Current Limitation 250% typ. of Iout max. Transient Response - Peak Variation 150 mV typ. / 200 mV max. (50% Load Step) - Response Time 250 µs typ. / 350 µs max. (50% Load Step) Output Specifications EMI Emissions - Conducted Emissions EN 55032 class A (with external filter) - Radiated Emissions EN 55032 class A (with external filter) External filter proposal: www.tracopower.com/overview/tsr1 EMC Specifications Relative Humidity 95% max. (non condensing) Temperature Ranges - Operating Temperature –40°C to +85°C - Storage Temperature –55°C to +125°C Power Derating - High Temperature 2.4 %/K above 60°C See application note: www.tracopower.com/overview/tsr1 Over Temperature Protection Switch Off - Protection Mode 150°C typ. (Automatic recovery) - Measurement Point Internal IC temperature Cooling System Natural convection (20 LFM) General Specifications TSR 1 Series, 1 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 / 3

Switching Frequency 400 - 600 kHz (PWM) 500 kHz typ. (PWM) Insulation System Non-isolated Reliability - Calculated MTBF 25'710'000 h (MIL-HDBK-217F, ground benign) Washing Process Allowed (hermetical product) See Cleaning Guideline: www.tracopower.com/info/cleaning.pdf Environment - Vibration MIL-STD-810F - Thermal Shock MIL-STD-810F Housing Material Non-conductive Plastic (UL 94 V-0 rated) Potting Material Silicone (UL 94 V-0 rated) Pin Material Copper Pin Foundation Plating Nickel (2 - 3 µm) Pin Surface Plating Tin (3 - 5 µm), matte Housing Type Plastic Case Mounting Type PCB Mount Connection Type THD (Through-Hole Device) Footprint Type SIP3 Soldering Profile 265°C / 10 s max. Weight 1.9 g 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 Outline Dimensions TSR 1 Series, 1 A 1 2 3 10.1 (0.40) 4.1 (0.16) 0.5 (0.02) 0.5 (0.02) 7.5 (0.30) 5.5 (0.22) 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) 11.7 (0.46) Pinout Pin Function 1 +Vin

2 GND

© Copyright 2022 Traco Electronic AG Specification s can be changed without notice. www.tracopower.com Rev. November 30, 2022 Page 3 / 3