C C S S O O R R E E M M T T P P R R L L I I E E A A V V N N N N T T Buck regulator power module with integrated shielded inductor Features 36VDC input voltage, 1.5A output current DC/DC Converter SCP, OCP, OTP, and UVLO protection 3.0 x 5.0mm low profile QFN package Power Flip-chip technology for improved thermal management Module RPX-1.5 Enable, power good, soft start, and sync functions Description 1.5 Amp The RPX-1.5 is a buck converter with an integrated inductor in a compact 3mm x 5mm x 1.6mm 3 thermally-enhanced QFN package. The input range is from 4 to 36VDC, allowing 5V, 12V, or 24V supply QFN voltages to be used. The output voltage can be set with two resistors in the range from 0.8 up to 30VDC. The output current is up to 1.5A and is fully protected against continuous short-circuits, output overcurrent, Package or over-temperature faults. Selection Guide Efficiency Part Input Output Output (1) (2) Number Voltage Range Voltage Current typ. VDC VDC mA % RPX-1.5 4 - 36 0.8 - 30 1500 87 Notes: Note1: Refer to SAFE OPERATING AREA Note2: Efficiency tested at V = 12VDC, full load, and V = 3.3VDC IN OUT 2+ RoHS REACH compliant compliant 10 from 10 Model Numbering RPX-1.5- (3) Packaging Output Current Notes: Note3: Add suffix -R for tape and reel packaging Add suffix -CT for bag packaging (refer toPACKAGING INFORMATION) Specifications ABSOLUTE MAXIMUM RATINGS (exceeding these ratings may damage the device) Parameter Symbol Min. Typ. Max. V -0.3VDC 40VDC IN V -0.3VDC V + 0.3VDC SW IN Absolute Maximum Voltage V -0.3VDC V + 0.3VDC OUT IN V V + 6VDC BST SW others -0.3VDC 6VDC (4) Maximum Continuous Power Losses T = 25C 2.7W AMB Junction Temperature T 150C J Lead Temperature 260C Storage Temperature -65C +150C Notes: RPX-1.5 DC/DC Converter Series Specifications OPERATING CONDITIONS (V = 12VDC, T = -40C to +125C, unless otherwise noted, typical values are at T = +25C) IN J J Parameter Condition Min. Typ. Max. Input Voltage Range 4VDC 36VDC V Under-voltage Lockout Threshold Rising 3VDC 3.5VDC 3.8VDC IN V Under-voltage Lockout Threshold Hysteresis 330mV IN Output Voltage Range refer to SAFE OPERATING AREA 0.8VDC 30VDC Standby Current DC-DC OFF 8A Quiescent Current 0.6mA Switching Frequency 1800kHz 2200kHz 2600kHz T = 25C 795mV 819mV AMB Feedback Voltage 807mV T = -40C to +125C 790mV 824mV AMB Feedback Current V = 820mV 10nA 50nA FB Rise-time internal soft start 1.7ms Typical Application V V VIN VOUT IN out R 1 C RPX-1.5 C C C C C 6 12 7 8 9 10 R3 CTRL PGS FB R2 R4 PG PG AGND PGND (5) C6 (C ) R1 R2 C12 (C ) R3 R4 (R ) C7-C10 (C ) IN FF TRIM OUT 10F, 50V 100kW 100kW Vout= 2VDC, 22pF 75kW Refer to OUTPUT VOLTAGE TRIMMING 10F Notes: Note5: C12 (C ) is required for low output voltages (<2VDC) FF The typical performance and circuit waveforms are shown in the Typical Performance Characteristics section. For more device applications, please refer to the related evaluation board datasheet RPX-1.5-EVM-1 SAFE OPERATING AREA 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Output Voltage VDC POWER GOOD OPERATING CONDITIONS (V = 12VDC, T = -40C to +125C, unless otherwise noted, typical values are at T = +25C) IN J J Parameter Condition Min. Typ. Max. Rising Threshold 0.83VDC 0.88VDC 0.93VDC Falling Threshold 0.78VDC 0.83VDC 0.88VDC www.recom-power.com REV.: 0/2020 I-2 Input Voltage VDC