Features

• MTBF: MIL-HDBK-217F @ +25°C Derating: 1.7 %/K above +55°C (positive circuit) Derating: 2.5 %/K above +65°C (negative circuit) For input voltage higher than 36 Vdc an input capacitor 22 μF/ 50 V is required Load regulation is shown at 0-100 %, for 10-90% the load regulation would be 0.3 %. 3. Traco 1A SMD Step Down Switching Regulator - TSRN-1SM Series. TSRN-1SM series step-down switching regulators with a wide input voltage range of up to 42 Vdc and a high efficiency of up to 95% which allows full load operation without the need for a heatsink or forced air cooling. These TSRN-1SM series 1A step-down switching regulators are suitable for positive and negative output circuits (see table for additional data) and have trim input for output voltage adjustment. A low standby power consumption and high efficiency makes these switching regulators ideal for *** in energy saving applications. Compact SMD package Input voltage range up to 42 VDC Built in filter capacitors No heat-sink required Adjustable output voltage Low standby current: Positive output circuit : 1.5 mA for stock number ; 755-3447 755-3447 , 4 mA for all other models. Negative output circuit : -3.3 / -5.5 V models: 3 mA, -9.0 / -12 V models: 7 mA and 10 mA for stock number ; 755-3457 755-3457 Excellent line and load regulation Over-temperature and short circuit protection Remote On/Off input Moisture sensitivity level (MSL) 1