End of Life QPO-1 QUIETPOWER QPO-1 Output Ripple Attenuation SIP Description: Features: The QPO-1 output ripple attenuator SiP uses active filtering to > 30 dB PARD attenuation, 500 Hz to 500 kHz reduce output the periodic and random disturbances (PARD) over 30 dB from 500 Hz to 500 kHz and it can be extended 3 - 30 V operating range DC down to 50 Hz with additional capacitance added to the VREF 10A rating (1) pin . The QPO-1 operates over a voltage range from 3 to 30 Supports precise point-of load regulation Vdc and supports load currents as high as 10 A. Output Up to 99% efficiency regulation is maintained with remote sense or trim User selectable performance optimization for adjustment of the power supply. The closed loop architecture attenuation, power dissipation, and transient response improves transient response and ensures quiet point-of-load 25.3 x 25.3 x 5.0 mm Lidded SiP (System-in-Package) regulation when used in conjunction with the power supplys 24.9 x 24.9 x 4.4 mm Open-frame SiP control loop or trim node. Low profile LGA package Closed control loop improves transient response of The waveforms in Figure 2 show the most DC-DC converters and power supplies QPO-1s ability to both filter a Reduces required number of output capacitors to converters output ripple and support dynamic loads. maintain a constant output voltage during a load transient. The input Applications voltage of the QPO-1 (dark blue) shows varying amplitude and Figure 1 - QPO- Telecom Base Stations 2 frequency PARD before and during 1LZ (~1 in area) Point of Load Power Systems the load transient, but the QPO-1 Sensors Requiring Low Noise Power output voltage (light blue) remains relatively unaffected. The Medical Instrumentation converter used is a Vicor Mini, 48 Vdc to 5 Vdc converter (Model number: V48B5C200BN). QPO-1 Performance Typical Application Figure 3 - Typical Application: SC/Trim supports applications that dont Figure 2 - PARD and Transient Attenuation during a 1A to require remote sense. 10A load step (~1A/s). Note 1: For off-line supplies, 20 dB of attenuation can be achieved down to 50 Hz with additional capacitance (CHR) added from the VREF pin to the REFGND pin. PICOR Corporation picorpower.com QPO-1 Rev 3.6 Page 1 of 17 End of Life QPO-1 QUIETPOWER Absolute Maximum Ratings Exceeding these parameters may result in permanent damage to the product. Input Voltage, QPO IN, PEAK IN to GND, REFGND, continuous -0.5 to 33 Vdc Input Voltage, QPO IN, PEAK IN to GND, REFGND, 100ms transient -0.5 to 40 Vdc Reference Voltage, VREF to GND, REFGND, continuous -0.5 to 33 Vdc (2) QPO IN to QPO OUT, no internal current limiting 15 Adc (3) Power dissipation, 10 A 4 W Operating temperature - T -40 to 125 C A 22 C/W Thermal resistance - R , using PCB layout in Figure 23 J-A 4 C/W Thermal resistance - R J-PCB Storage temperature, JEDEC Standard J-STD-033B -55 to 125 C Reflow temperature, 20 s exposure 245 C ESD, Human body model (HBM) -4000 to 4000 V Electrical Characteristics Parameter limits apply over the operating temp. range, unless otherwise noted. Parameter Notes Min Max Units Operating load current range Minimum load required for proper operation. 0.03 10 Adc Output voltage range Continuous 3.0 30 Vdc Headroom voltage range (VHR) See applications details for setting 225 525 mVdc Transient response voltage IOUT = 2 A VHR = 375mV 100mA, CIN = 200uF 50 mVdc (4) droop, di/dt > 1A/s IOUT = 10 A VHR = 375mV 100mA, CIN = 1500uF 50 mVdc Output noise Input PARD = 100mVpp, 50 500kHz 10 mVpp (1) With CHR = 25uF 5 mVrms SC output current accuracy See applications details for setting -1 +1 % Input bias current Input current from QPO IN to GND 60 mA Note 2: User must protect load path and limit steady state load current to be less than the absolute maximum of 15A. Note 3: See Figure 18 for the QPO-1s power de-rating curve. Note 4: For faster current transients an additional input capacitor (CIN), between QPO IN and GND, will be required to maintain a minimal voltage drop. Pad Descriptions Pad Number Name Description LGA Pattern (Top View) 1, 19, 20 GND Common ground 2 SLOPE ADJ RSA resistor connection that sets the slope of the headroom voltage adjustment vs. load current (mV/A) 3 VREF Reference of the active filter that determines the QPO OUT voltage 4 REFGND Ground reference for the VREF pin (critical low noise connection, not internally connected to GND) 5 CESR Active filter compensation capacitor connection 6 SC SET RSCSET resistor connection that programs the SC trim control current 7, 8, 9, 10, 17 QPO OUT Output pins 11, 12, 13, 14, QPO IN Input pins (critical thermal path to remove heat 18 from the package, see PCB suggested layout Figure 23) 15 PEAK IN Peak Detector Input 16 SC Current source used to drive the SC/Trim pin of the power source Ordering Information Part Number Description (5) QPO-1LZ QPO-1 LGA Package, RoHS Compliant QPO-1LZ-01 QPO-1 LGA Package, RoHS Compliant, Open Frame Package Note 5: QPO-1LZ is a non-hermetically sealed package. Please read the Post Solder Cleaning section on page 16. PICOR Corporation picorpower.com QPO-1 Rev 3.6 Page 2 of 17