PTHxx050Y 3.3/5/12 Vin Single Output DC-DC CONVERTERS • • • • • • • • • • • Non-isolated DDR/QDR Memory Bus Termination Module 1 VTT bus termination output (output tracks the system VREF) 6 A output current (8 A Peak) 3.3 Vdc, 5 Vdc or 12 Vdc input voltage DDR and QDR compatible ON/OFF inhibit (for VTT standby) Under-voltage lockout Operating temperature range: -40 ºC to +85 ºC Efficiencies up to 88% Output overcurrent protection (non-latching, auto-reset) Point-of-Load-Alliance (POLA) compatible Available RoHS compliant NEW Product The PTHxx050Y are a new series of non-isolated dc-dc converters designed specifically for bus termination in DDR and QDR memory applications. Operating from either a 3.3 Vdc, 5 Vdc or 12 Vdc input, the modules generate a VTT output that will source or sink up to 6 A of current to accurately track their VREF input. VTT is the required bus termination supply voltage, and VREF is the reference voltage for the memory and chipset bus receiver comparators. VREF is usually set to half the VDDQ power supply voltage. The PTHxx050Y series employs an actively switched synchronous rectifier output to provide state of the art stepdown switching conversion. The products are small in size and are an ideal choice where space, performance and high efficiency are desired. 2 YEAR WARRANTY SPECIFICATIONS All specifications are typical at nominal input, VREF = 1.25 V, full load at 25 °C unless otherwise stated. Cin, Co1 and Co2 = typical value OUTPUT SPECIFICATIONS Output current (over ∆VREF range) INPUT SPECIFICATIONS CONTD. All models Continuous (See Note 1) Repetitive pulse (See Note 2) Tracking range for VREF 0.55-1.8 V Tracking tolerance to VREF (VTT - VREF) (over line, load and temperature) Ripple and noise 20 MHz bandwidth Load transient response (See Note 5) Output capacitance: Non-ceramic values (See Notes 5 and 6) Ceramic values (See Note 5) (See Note 7) ±6 A ±8 A -10 mV to +10mV 20 mV pk-pk 80 µs settling time Overshoot/undershoot 25 mV typ. PTH03050Y 470 µF typ., 3,300 µF max. PTH05050Y 470 µF typ., 3,300 µF max. PTH12050Y 940 µF typ., 3,300 µF max. PTH03050Y 200 µF typ., 300 µF max. PTH05050Y 200 µF typ., 300 µF max. PTH12050Y 400 µF typ., 600 µF max. 4 mΩ min ESR (non-ceramic) Input capacitance (See Note 4) PTH03050Y and PTH05050Y PTH12050Y Remote ON/OFF 470 µF 560 µF Active high GENERAL SPECIFICATIONS Efficiency Io = 4 A PTH03050Y PTH05050Y PTH12050Y 88% typ. 87% typ. 84% typ. PTH03050Y PTH05050Y PTH12050Y 550- 650 kHz 550-650 kHz 200-300 kHz Non-isolated Insulation voltage Switching frequency EN60950 UL/cUL60950 Approvals and standards Material flammability Dimensions UL94V-0 (L x W x H) 22.10 x 12.57 x 8.50 mm 0.870 x 0.495 x 0.335 in 2.9 g (0.10 oz) Weight MTBF Telcordia SR-332 6,000,000 hours INPUT SPECIFICATIONS Input current No load Input voltage range PTH03050Y PTH05050Y PTH12050Y Undervoltage lockout: PTH03050Y PTH05050Y PTH12050Y 10 mA 2.95-3.65 Vdc 4.5-5.5 Vdc 10.8-13.2 Vdc ENVIRONMENTAL SPECIFICATIONS Thermal performance (See Note 2) MSL (‘Z’ suffix only) Vin increasing 2.45 V typ., 2.80 V max. Vin decreasing 2.20 V min., 2.40 V typ. Vin Vin Vin Vin increasing 4.30 V typ., 4.45 V max. decreasing 3.40 V min., 3.70 V typ. increasing 9.5 V typ., 10.4 V max. decreasing 8.80 V min., 9.0 V typ. Operating ambient, temperature Non-operating -40 ºC to +85 ºC -40 ºC to +125 ºC JEDEC J-STD-020C Level 3 PROTECTION Overcurrent threshold (auto reset) All models 12 A typ. File Name: PTHxx050Y.pdf Rev (02): 19 Dec 2005 PTHxx050Y 3.3/5/12 Vin Single Output DC-DC CONVERTERS Non-isolated DDR/QDR Memory Bus Termination Module 2 For the most current data and application support visit www.artesyn.com/powergroup/products.htm NEW Product OUTPUT POWER (MAX.) INPUT VOLTAGE VTT RANGE OUTPUT CURRENT (MIN.) OUTPUT CURRENT (MAX.) EFFICIENCY (TYP.) MODEL NUMBER (9,10) 10.8 W 2.95-3.65 Vdc 0.55-1.8Vdc 0A ±6 A 88% PTH03050Y 10.8 W 4.5-5.5 Vdc 0.55-1.8Vdc 0A ±6 A 87% PTH05050Y 10.8 W 10.8-13.2 Vdc 0.55-1.8Vdc 0A ±6 A 84% PTH12050Y Part Number System with Options PTH05050YAST Packaging Options No Suffix = Trays T = Tape and Reel (8) Product Family Point of Load Alliance Compatible Input Voltage 03 = 3.3 V, 05 = 5 V and 12 = 12 V Mounting Option (9) D = Horizontal Through-Hole (Matte Sn) H = Horizontal Through-Hole (Sn/Pb) S = Surface-Mount (63/37 Sn/Pb pin solder material) Z = Surface-Mount (96.5/3.0/0.5 Sn/Ag/Cu pin solder material) Output Current 05 = 6 A Mechanical Package Always 0 Pin Option A = Through-Hole Std. Pin Length (0.140”) A = Surface-Mount Tin/Lead Solder Ball Output Voltage Code Y = DDR Module Notes 1 2 3 4 5 Rating is conditional on the module being directly soldered to a 4 layer PCB with 1 oz. copper. See the SOA curves or contact the factory for appropriate derating. The PTH03050Y and PTH05050Y require no derating up to 85 °C operating temperature and natural convection airflow. Up to 10 ms pulse period at 10% maximum duty. This control pin has an internal pull-up to the input voltage Vin. If it is left open-circuit the module will operate when input power is applied. A small low-leakage (<100 nA) MOSFET is recommended for control. For further information, consult Application Note 178. An input capacitor is required for proper operation. The capacitor must be rated for a minimum of 300 mA rms (750 mA rms for 12 V input) of ripple current. The typical value of external output capacitance value ensures that VTT meets the specified transient performance requirements for the memory bus terminations. Lower values of capacitance may be possible when the measured peak change in output current is consistently less than 3 A. Test conditions were 15 A/µs load step, -1.5 A to +1.5 A. 6 This is the calculated maximum. The minimum ESR limitation will often result in a lower value. Consult Application Note 178 for further details. 7 This is the typical ESR for all the electrolytic (non-ceramic) output capacitance. Use 7 mΩ as the minimum when using max ESR values to calculate. 8 Tape and reel packaging only available on the surface-mount versions. 9 To order Pb-free (RoHS compatible) surface-mount parts replace the mounting option ‘S’ with ‘Z’, e.g. PTHxx050YAZ. To order Pb-free (RoHS compatible) through-hole parts replace the mounting option ‘H’ with ‘D’, e.g. PTHxx050YAD. 10 NOTICE: Some models do not support all options. Please contact your local Artesyn representative or use the on-line model number search tool at http://www.artesyn.com/powergroup/products.htm to find a suitable alternative. International Safety Standard Approvals UL/cUL CAN/CSA-C22.2 No. 60950 File No. E174104 TÜV Product Service (EN60950) Certificate No. B 04 06 38572 044 CB Report and Certificate to IEC60950, Certificate No. US/8292/UL File Name: PTHxx050Y.pdf Rev (02): 19 Dec 2005 PTHxx050Y 3.3/5/12 Vin Single Output DC-DC CONVERTERS Non-isolated DDR/QDR Memory Bus Termination Module 3 AMBIENT TEMPERATURE (ºC) For the most current data and application support visit www.artesyn.com/powergroup/products.htm NEW Product 8 80 70 60 Nat conv 50 40 30 OUTPUT CURRENT (A) 90 6 5 Nat conv 100 LFM 200 LFM 4 3 2 1 20 0 0 1 2 3 4 5 0 6 10 20 30 40 50 60 70 80 AMBIENT TEMPERATURE (ºC) OUTPUT CURRENT (C) Figure 1 - Safe Operating Area Vin = 3.3 V, VREF = 1.25 V, Iout = 6 A (See Note A) Figure 2 - Safe Operating Area Vin = 12V, VREF = 1.25 V, Iout = 6 A (See Note A) Vin 100 90 1 1k 1% 3 Vin 3.3V 5.0V 12.0V 80 70 60 2 1k 1% 4 Cin (Required) Standby + VTT 6 PTHxx050Y (Top View) Con hf-Ceramic 5 Co1 Low-ESR (Required) + Co2 Ceramic (Optional) Q1 BSS138 (Optional) GND 50 0 1 2 3 4 5 VTT Termination Island EFFICIENCY (%) VREF VDDQ SSTL-2 Data/ Address/ Bus 6 OUTPUT CURRENT (A) Figure 3 - Efficiency vs Load Current VREF = 1.25 V (See Note B) Figure 4 - Standard Application Notes A The SOA curves represent the conditions at which internal components are within the Artesyn derating guidelines. B Characteristic data has been developed from actual products tested at 25 °C. This data is considered typical data for the converter. File Name: PTHxx050Y.pdf Rev (02): 19 Dec 2005 PTHxx050Y 3.3/5/12 Vin Single Output DC-DC CONVERTERS Non-isolated DDR/QDR Memory Bus Termination Module 4 For the most current data and application support visit www.artesyn.com/powergroup/products.htm NEW Product 0.140 (3.55) 0.870 (22.10) 0.060 (1.52) 0.060 (1.52) 0.750 (19.06) 6 1 0.125 (3.18) 0.125 (3.18) 0.125 (3.18) ø0.040 (1.02) 6 Places 2 0.375 0.495 (12.57) (9.52) Lowest Component 0.010 min. (0.25) Bottom side Clearance 3 5 4 0.070 (1.78) (Standoff Shoulder) TOP VIEW Host Board Dimensions in Inches (mm) Tolerances (unless otherwise specified) 2 Places ±0.030 (±0.76) 3 Places ±0.010 (±0.25) PIN CONNECTIONS 0.335 (8.50) MAX. PIN NO. FUNCTION SIDE VIEW 1 Ground 2 VREF 3 Vin 4 Inhibit* 5 N/C 6 VTT Figure 5 - Plated Through-Hole Mechanical Drawing *Denotes negative logic: Open = Normal operation Ground = Function active 0.870 (22.10) 0.060 (1.52) 0.125 (3.18) 0.125 (3.18) 0.125 (3.18) 0.060 (1.52) 0.750 (19.06) 0.335 (8.50) max.* *After solder reflow on customer board 6 1 2 Solder Ball ø0.040 (1.02) 6 Places 0.495 0.375 (12.57) (9.52) 3 Lowest Component 0.010 min. (0.25) Bottom side Clearance 5 4 TOP VIEW SIDE VIEW Host Board Dimensions in Inches (mm) Tolerances (unless otherwise specified) 2 Places ±0.030 (±0.76) 3 Places ±0.010 (±0.25) Figure 6 - Surface-Mount Mechanical Drawing Datasheet © Artesyn Technologies® 2005 The information and specifications contained in this datasheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising from printing errors or inaccuracies. The information and specifications contained or described herein are subject to change in any manner at any time without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein. Please consult our website for the following items: 4 Application Note www.artesyn.com File Name: PTHxx050Y.pdf Rev (02): 19 Dec 2005