C C S S O O R R w E E M M T T P P R R a L L R I I E E A A r V V N N A N N T T r Buck regulator power module with integrated shielded inductor Features 28V maximum input voltage 2.5A maximum output current DC/DC Converter SCP, OCP, OTP, OVP and UVLO protection Power 4.5mm x 4mm low profile QFN pac kage Flip-Chip technology for improved thermal management Module RPX-2.5 Efficiency up to 91% Description 2.5 Amp 3 The RPX-2.5 is a buck converter with integrated inductor in a tiny 4.5mm x 4mm x 2mm thermally- QFN enhanced QFN package (the smallest in its class). The input range is from 4.5 to 28VDC, allowing 5V, 12V or 24V supply voltages to be used. The output voltage can be set with two resistors in the range from 1.2V up to 6V. The output current is up to 2.5A and is fully protected against continuous Package short-circuits, output overcurrent or over-temperature faults. The enable pin features an internal pull-up current source, so will operate with open-drain, open-collector, logic gate or switched inputs (leave open if not used). Selection Guide Part Input Voltage Vout Output Efficiency Max. Capacitive (2) (3) Number Range Adjust Range Current max. max. Load (1) (1) VDC VDC A % F RPX-2.5 4.5-28 1.2-6 2.5 91 500 Notes: Note1: Refer to Safe Operating Area Note2: Efficiency is tested at Vin= 12V, Iout= 1A, Vout= 5V Note3: Max. Cap Load is tested at nominal input and full resistive load 22++ RoHSRoHS REACHREACH compliantcompliant compliantcompliant 10 from 1010 from 10 Model Numbering RPX-2.5-CT (4) Output Current Packaging Notes: Note4: add suffix -CT for bag packaging for more details refer to PACKAGING INFORMATION without suffix, standard ta pe and reel packaging Specifications (measured ta= 25C, 12Vin, 3.3Vout, full load unless otherwise stated, refer to test set up) ABSOLUTE MAXIMUM RATINGS Parameter Condition Min. Typ. Max. -0.3VDC 30VDC Vin -0.3VDC 7VDC CTRL, FB (5) -0.3VDC 30VDC Absolute Maximum Voltage SW -5VDC 30VDC SW transient Vout -0.3VDC 7VDC according to MIL-STD-883D, method 1500G Shock 2002.3 1ms, 1/2 sine, mounted according to MIL-STD-883D, method 20G Vibration 2007.7 20Hz-2kHz EVAL -40C +125C Operating IC Junction Temperature (T ) J BOARD -40C +85C Operating Ambient Temperature (T ) AMB available Storage Temperature (T ) -55C +150C STO Notes: Note5: Stresses beyond those listed under absolute maximum ratings can cause permanent damage www.recom-power.com/eval-ref-boards to the device. (Values are at non-operating) www.recom-power.com REV.: 3/2020 RPX-1 O O P P E a C C R R O O Y M M n D D O O U U t C C C C E E y T T R R S SRPX-2.5 DC/DC Converter Series Specifications (measured ta= 25C, 12Vin, 3.3Vout, full load unless otherwise stated, refer to test set up) OPERATING RATINGS Parameter Condition Min. Typ. Max. (6) Input Voltage Range 4.5VDC 28VDC Under Voltage Lockout (UVLO) DC-DC ON 3.8VDC 4.1VDC 4.4VDC (7) (default setting) DC-DC OFF 3.3VDC 3.6VDC 3.9VDC 1.2VDC 6VDC Output Voltage Adjust Range refer to OUTPUT VOLTAGE SETTING CTRL Voltage Range 0VDC 6VDC DC-DC ON (or open) 1.21VDC 1.28VDC CTRL ON/OFF Thresholds DC-DC OFF (or short to GND) 1.1VDC 1.19VDC 1.6A V = 1.5VDC (DC-DC ON) CTRL Input Current of CTRL Pin 0.7A V = 1VDC (DC-DC OFF) CTRL Standby Current DC-DC OFF 2A (8) Output Current 0A 2.5A power on 10ms Start-up Time by using CTRL (without C ) 6ms OUT Rise-time (internal soft start) 5ms Switching Frequency 550kHz 750kHz 1MHz (9) Output Ripple and Noise 20Mhz BW 22mVp-p Notes: Note6: The minimum recommended input voltage is 4.5 V or (V 1.3), whichever is greater OUT Note7: Refer to UNDER VOLTAGE LOCKOUT SETTING Note8: The maximum output current that the RPX can deliver is a function of input voltage, output voltage, and ambient temperature Note9: Measurement with C = 10F, 50V 1210 ceramic, C = 100F, 35V electrolytic and C = 47F 16V, ceramic capacitors IN1 IN2 OUT1,2 Test Set-up DNC SW V V +V V IN OUT IN out C C C C C IN1 IN2 FF OUT1 OUTn R R . UVLO1 RPX-2.5 FBT CTRL FB GND V CTRL Q 1 R R UVLO2 FBB Safe Operating Area 32 min. Vin max. Vin 28 Typical operating conditions Nominal Vin Vout Iout , max 24 24VDC 5VDC 2.0A 20 24VDC 3.3VDC 2.1A 16 12VDC 5VDC 2.5A 12 12VDC 3.3VDC 2.5A 5VDC 3.3VDC 2.5A 8 5VDC 1.2VDC 2.5A 4 0 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 Output Voltage VDC www.recom-power.com REV.: 3/2020 RPX-2 Input Voltage VDC