TSR 3-1250A

Non-Isolated DC/DC Converter (POL) • High performance 3 Amp. switching regulator • Suitable for positive & negative output circuit • • • High efficiency up to 95 % • • • • Short circuit protection Adjustable output voltages Wide input voltage ranges 2.5–5.5, 4.5–14 and 10–30 VDC Remote On/Off input Low output ripple & noise 3-year product warranty TSR 3 Series, 3 A The TSR 3 models are non isolated step down switching regulators. Since production May 2013 they can also be operated with negative output voltage. They come in a very compact open frame package of 15.5 x 9.4 x 6.2mm. The high efficiency of up to 95% admits a full load operation up to 50°C and up to 85°C with 50% current reduction. A low standby current, a very wider input range and no requirement for heatsink give these switching regulators a significant advantage over linear regulators. Togther with a remote On/Off input and protection against short circuit the TSR 3 Series models are ideal point of load regulators for high reliable and energy critical applications. Models Order Code Output Current Input Voltage Output Voltage max. Range nom. (adjustable) typ. 2.5 - 5.5 VDC (5 VDC nom.) 0.6 VDC (0.6 - 3.3 VDC) 95 % (at 2.5 Vout) 4.5 - 14 VDC (12 VDC nom.) 0.6 VDC (0.6 - 6.0 VDC) 93 % (at 3.3 Vout) 3 VDC (3.0 - 6.0 VDC) 91 % (at 5.0 Vout) 5 VDC (5.0 - 15.0 VDC) 95 % (at 12 Vout) TSR 3-0533 TSR 3-1250 3'000 mA TSR 3-2450 10 - 30 VDC (24 VDC nom.) TSR 3-24150 Efficiency Options Suffix A Note - Optional models with angular pins (see outline dimensions) - TSR 3-1250: max. 9 Vin if Vout