DC/DC Converters TSR-3 Series, 3 A Features High performance 3 Amp. switching regulator Suitable for positive & negative output circuit High efficiency up to 95 % Adjustable output voltages Wide input voltage ranges 2.5-5.5, 4.5-14 and 10-30 VDC Short circuit protection Remote On/Off input Low output ripple & noise 3-year product warranty 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 50C and up to 85C 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 and over temperature the TSR 3 Series models are ideal point of load regulators for high reliable and energy critical applications. Models Order code * Input voltage range Output voltage adjustable 6) Output current max. Efficiency typ. Positive output circuit TSR 3-0533 2.5 - 5,5 VDC 1) 0.6 - 3.3 VDC TSR 3-1250 4.5 - 14 VDC 2) 0.59 - 6.0 VDC 10 - 30 VDC 3) 3.0 - 6.0 VDC 10 - 30 VDC 3) 5.0 - 15 VDC TSR 3-2450 TSR 3-24150 95 % at 2.5 VDC 3A 93 % at 3.3 VDC 91 % at 5.0 VDC 95 % at 12 VDC Negative output circuit TSR 3-1250 4.7 - 13 VDC 4) -0.59 - -6.0 VDC 1.5 A at |Vout| >3.3 VDC 2.2 A at |Vout| <3.3 VDC 90 % at -3.3 VDC TSR 3-2450 10 - 27 VDC 5) -3.0 - -6.0 VDC 2.2 A 90 % at -5.0 VDC 5) -5.0 - -15 VDC 1.2 A 91 % at -12 VDC TSR 3-24150 10 - 25 VDC * Suffix A for models with angular pins (see dimensions), availability on demand, no stocking item. 1) input voltage must be at least 0.5 V higher than output voltage 2) input voltage must be at least 2.0 V higher than output voltage, max. 9 VDC if output is <0.9 VDC 3) input voltage must be at least 3.0 V higher than output voltage 4) max. input voltage = 14-|Vout| 5) max. input voltage = 30-|Vout| 6) open trim input = min. output voltage http://www.tracopower.com Page 1 of 3 DC/DC Converters TSR-3 Series 3A Input Specifications Maximum input current (@ Vin min. and 3 A output current) TSR 3-0533: TSR 3-1250: TSR 3-2450: TSR 3-24150: No load input current - positive output circuit - negative output circuit Reflected ripple current - positive output circuit TSR 3-0533 and TSR 3-1250: TSR 3-2450 & TSR 3-24150: all models: - negative output circuit Input filter 3.0 A 2.6 A 2.2 A 3.0 A 25 mA typ. 35 mA typ., 60 mA typ. for TSR 3-24150 30 mA typ. 30 mA typ. with ext. filter, see fig. 1 page 3 30 mA typ. with ext. filter, see fig. 2 page 3 internal capacitors Output Specifications Voltage set accuracy 2 % (at full load) Output voltage adjustmentsee application note page 3 Regulation - Input variation >2.5 Vout: 0.2 %, <2.5 Vout: 5 mV - Load variation 0 - 100 % >2.5 Vout: 0.8 %, <2.5 Vout: 20 mV - Load variation 10 - 90 % >2.5 Vout: 0.6 %, <2.5 Vout: 15 mV Temperature coefficient 1 %/C max. Overshoot startup voltage 1.0 % max. Minimum load not required Ripple and noise (20 MHz Bandwidth) TSR 3-0533: TSR 3-1250: TSR 3-2450: TSR 3-24150: 30 mVp-p 60 mVp-p 75 mVp-p 150 mVp-p Dynamic load response 50 % load change (upper half) 150 mV max. peak variation (250 mV max. for TSR 3-24150) 120 s max. response time Startup rise time 10 % to 90 % Vout TSR 3-0533 & TSR 3-1250: 6 ms TSR 3-2450 & TSR 3-24150: 10 ms Short circuit protection continuous, automatic recovery Current limitation TSR 3-0533: 280 % typ. other models: 220 % typ. Capacitive load - positive output; ESR > 1 mOhm - positive output; ESR > 10 mOhm - negative output TSR 3-24150: other models: TSR 3-24150: other models: TSR 3-1250: TSR 3-2450: TSR 3-24150: 500 F max. 1000 F max. 1200 F max. 3000 F max. 780 F max. 2200 F max. 580 F max. General Specifications Temperature ranges - Operating (natural convection cooling 20 LFM) -40C to +85C - Storage -55C to +125C Derating 1.5 %/K above +50C Thermal shock acc. MIL-STD-810F Humidity (non condensing) 5 % to 95 % rel H max. Reliability, calculated MTBF (MIL-HDBK-217F, at +25C, ground benign) >4'500'000 h Isolation voltage none Switching frequency TSR 3-0533 & TSR 3-1250: 600 kHz typ. TSR 3-2450 & TSR 3-24150: 300 kHz typ. Remote On/Off - On TSR 3-0533: (pin 1 ref. to GND) other models: - Off - Off idle current: TSR 3-0533 & TSR 3-1250: TSR 3-2450 & TSR 3-24150: Environmental compliance open or Vin open or 1 to 12 VDC 0 to 0.3 VDC 1.5 mA typ. 6 mA typ. - Reach www.tracopower.com/info/reach-declaration.pdf - RoHS RoHS directive 2011/65/EU All specifications valid at nominal input voltage, full load and +25C after warm-up time unless otherwise stated. http://www.tracopower.com Page 2 of 3 DC/DC Converters TSR-3 Series 3A Applications notes Input filter to reduce reflected ripple current fig. 1 fig. 2 Positive output circuit L1 + 2 C1 Input TSR 3 C2 GND + 4 Output 3 Negative output circuit Input + 2 GND GND GND 4 TSR 3 C1 C2 Output 3 C1 = 220 F, ESR <0.1 Ohm C2 = 150 F L1 = 8.2 H C1, C2 =10 F, MLCC Output voltage adjustment (for negative and positive circuit) 4 TSR 3 5 Load 3 Rtrim Model R trim [KOhm] 1/16 W TSR 3-0533 1.2/(|Vout| -0.6)-0.01 TSR 3-1250 1.18/(|Vout| -0.59) TSR 3-2450 11.2/(|Vout| -3) TSR 3-24150 8.4/(|Vout| -5) (|Vout| = absolute value) Outline Dimensions Standard version W Angular Pin version (optional) 6.0 6.2 (0.24) (0.25) Pin-Out positive 1 1 3.3 5 (0.13) H 2 Square pins 0.64 x 0.64 (0.025 x 0.025) 4 x 1.70 3.7 (4 x 0.06) (0.14) 5.1 negative Remote On/Off +Vin (Vcc) 3 GND -Vout 4 +Vout GND 5 Trim (0.20) TSR 3-0533 & TSR 3-1250: W=9.4 (0.37) H=15.5 (0.61) TSR 3-2450 & TSR 3-24150: W=10.4 (0.41) H=16.5 (0.65) Dimensions in [mm], () = Inch Pin pitch tolerances: 0.25 (0.01) Pin profile tolerance: 0.1 (0.004) Other tolerances: 0.5 (0.02) (Component allocation is model specific) Weight TSR 3-0533 & TSR 3-1250: 1.7 g TSR 3-2450 & TSR 3-24150: 2.1 g Supporting documents: www.tracopower.com/overview/tsr3 Specifications can be changed without notice! Make sure you are using the latest documentation, downloadable at www.tracopower.com Rev. September 10, 2018 www.tracopower.com Page 3 of 3