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TSR1-2418
DC/DC Step-Down Converter TSR 1 Series, 1 Amp • 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 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 Input voltage range Output voltage Output current max. Efficiency typ. @ Vin min. @ Vin max. TSR 1-2412 4.6 – 36 VDC* 1.2 VDC 74 % 62 % TSR 1-2415 4.6 – 36 VDC* 1.5 VDC 78 % 65 % TSR 1-2418 4.6 – 36 VDC* 1.8 VDC 82 % 69 % TSR 1-2425 4.6 – 36 VDC* 2.5 VDC 87 % 75 % TSR 1-2433 4.75 – 36 VDC* 3.3 VDC 91 % 78 % TSR 1-2450 6.5 – 36 VDC* 5.0 VDC 94 % 84 % TSR 1-2465 9.0 – 36 VDC* 6.5 VDC 93 % 87 % TSR 1-2490 12 – 36 VDC* 9.0 VDC 95 % 90 % 15 – 36 VDC* 12 VDC 95 % 92 % 18 – 36 VDC* 15 VDC 96 % 94 % Models TSR 1-24120 TSR 1-24150 1.0 A * For input voltage higher than 32 VDC an input capacitor 22 µF / 50 V is required. See application notes (page 3) http://www.tracopower.com Page 1 of 3
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