TSR1-2425

DC/DC Converters TSR-1 Series, 1 A Features ◆ 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 new 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. Models Order code TSR 1-2412 TSR 1-2415 TSR 1-2418 TSR 1-2425 TSR 1-2433 TSR 1-2450 TSR 1-2465 TSR 1-2490 TSR 1-24120 TSR 1-24150 Input voltage range 4.6 – 36 VDC* 4.6 – 36 VDC* 4.6 – 36 VDC* 4.6 – 36 VDC* 4.75 – 36 VDC* 6.5 – 36 VDC* 9.0 – 36 VDC* 12 – 36 VDC* 15 – 36 VDC* 18 – 36 VDC* Output voltage 1.2 VDC 1.5 VDC 1.8 VDC 2.5 VDC 3.3 VDC 5.0 VDC 6.5 VDC 9.0 VDC 12 VDC 15 VDC 1.0 A Output current max. 74 % 78 % 82 % 87 % 91 % 94 % 93 % 95 % 95 % 96 % Efficiency typ. @ Vin min. @ Vin max. 62 % 65 % 69 % 75 % 78 % 84 % 87 % 90 % 92 % 94 % * For input voltage higher than 32 VDC an input capcitor 22 µF / 50 V is required. See application notes (page 3) http://www.tracopower.com Page 1 of 3 DC/DC Converters TSR-1 Series Input Specifications Maximum input current (@ Vin min. and 1 A output current) No load input current Reflected ripple current Input filter 1A 1 mA typ. 150 mA see application notes (page 3) for to meet EN55022 class A internal capacitors ±2 % (at full load) – Input variation 0.2 % – Load variation (10 – 100 %) 1.2 & 1.5 VDC models: 0.6 % other models: 0.4 % 1.0 % max. not required 1.2 – 6.5 VDC models: 50 mVpk-pk max. 9 – 15 VDC models: 75 mVpk-pk max. ±0.015 % / °C max. 150 mV max. peak variation 250 µS max. response time 2 mS continuous, automatic recovery @ 2.5 A typ. 470 µF max. – Operating – Storage –40°C to +85°C –55°C to +125°C 2.4 %/K above 60°C acc. MIL-STD-810F 95 % rel H max. >5’350’000 h none – Input/Output – Input/Output 40 pF typ. >1‘000 Mohm 500 kHz typ. UL 60950-1, EN 60950-1, IEC 60950-1 non-conductive plastic epoxy (flammability to UL 94V-0 rated) 1.9 g (0.07 oz) max. 265°C / 10 sec. (wave soldering) 1A Output Specifications Voltage set accuracy Regulation Overshoot startup voltage Minimum load Ripple and noise (20 MHz Bandwidth) Temperature coefficient Dynamic load response 50% load change (upper half) Startup rise time 10 % to 90 % Vout Short circuit protection Current limitation Capacitive load General Specifications Temperature ranges Derating Thermal shock Humidity (non condensing) Reliability, calculated MTBF ( MIL-HDBK-217F, @ 25°C, ground benign) Isolation voltage Isolation capacity Isolation resistance Switching frequency Safety standards Physical Specifications Casing material Potting material Package weight Soldering profile 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 TSR-1 Series Applications notes For input voltage higher than 32 VDC (max. 36 VDC) +Vin +Vout 1A C1 = 22 µF / 50 V Load Input C1 TSR 1 GND Input filter to meet EN 55022 class A L1 Input C1 C2 C1 = 4.7 µF / 50 V C2 = 4.7 µF / 50 V L1 = 8.2 µH / 1.5 A / 0.08 Ohm +Vin +Vout TSR 1 GND Load Outline Dimensions Pin-Out 1 7.6 (0.30) 0.3 (0.01) Bottom view 2.0 (0.08) 0.5(0.02) +Vin GND +Vout 2 3 11.7 (0.46) 1 2 3 0.5 (0.02) 10.2 (0.40) (0.13) (0.1) (0.1) 3.3 2.542.54 Dimensions in [mm], () = Inch Pin pitch tolerances: ±0.25 (±0.01) Pin profile tolerance: ±0.1 (±0.004) Other tolerances: ±0.5 (±0.02) Specifications can be changed any time without notice. Rev. 06/09 Jenatschstrasse 1 · CH-8002 Zurich · Switzerland Tel. +41 43 311 45 11 · Fax +41 43 311 45 45 · info@traco.ch · www.tracopower.com (0.16) 4.1 Page 3 of 3