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PTH05050YADT Datasheet(PDF) 1 Page - Artesyn Technologies |
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PTH05050YADT Datasheet(HTML) 1 Page - Artesyn Technologies |
1 / 4 page DC-DC CONVERTERS Non-isolated DDR/QDR Memory Bus Termination Module 1 NEW Product File Name: PTHxx050Y.pdf Rev (02): 19 Dec 2005 2 YEAR WARRANTY 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 SPECIFICATIONS 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. • 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 PTHxx050Y 3.3/5/12 Vin Single Output OUTPUT SPECIFICATIONS Output current All models (over ∆VREF range) Continuous (See Note 1) ±6 A Repetitive pulse (See Note 2) ±8 A Tracking range for VREF 0.55-1.8 V Tracking tolerance to VREF (VTT - VREF) -10 mV to +10mV (over line, load and temperature) Ripple and noise 20 MHz bandwidth 20 mV pk-pk Load transient response 80 µs settling time (See Note 5) Overshoot/undershoot 25 mV typ. Output capacitance: Non-ceramic values PTH03050Y 470 µF typ., 3,300 µF max. (See Notes 5 and 6) PTH05050Y 470 µF typ., 3,300 µF max. PTH12050Y 940 µF typ., 3,300 µF max. Ceramic values PTH03050Y 200 µF typ., 300 µF max. (See Note 5) PTH05050Y 200 µF typ., 300 µF max. PTH12050Y 400 µF typ., 600 µF max. (See Note 7) ESR (non-ceramic) 4 m Ω min INPUT SPECIFICATIONS Input current No load 10 mA Input voltage range PTH03050Y 2.95-3.65 Vdc PTH05050Y 4.5-5.5 Vdc PTH12050Y 10.8-13.2 Vdc Undervoltage lockout: PTH03050Y Vin increasing 2.45 V typ., 2.80 V max. Vin decreasing 2.20 V min., 2.40 V typ. PTH05050Y Vin increasing 4.30 V typ., 4.45 V max. Vin decreasing 3.40 V min., 3.70 V typ. PTH12050Y Vin increasing 9.5 V typ., 10.4 V max. Vin decreasing 8.80 V min., 9.0 V typ. INPUT SPECIFICATIONS CONTD. Input capacitance PTH03050Y and PTH05050Y 470 µF (See Note 4) PTH12050Y 560 µF Remote ON/OFF Active high GENERAL SPECIFICATIONS Efficiency PTH03050Y 88% typ. Io = 4 A PTH05050Y 87% typ. PTH12050Y 84% typ. Insulation voltage Non-isolated Switching frequency PTH03050Y 550- 650 kHz PTH05050Y 550-650 kHz PTH12050Y 200-300 kHz Approvals and EN60950 standards UL/cUL60950 Material flammability UL94V-0 Dimensions (L x W x H) 22.10 x 12.57 x 8.50 mm 0.870 x 0.495 x 0.335 in Weight 2.9 g (0.10 oz) MTBF Telcordia SR-332 6,000,000 hours ENVIRONMENTAL SPECIFICATIONS Thermal performance Operating ambient, -40 ºC to +85 ºC (See Note 2) temperature Non-operating -40 ºC to +125 ºC MSL (‘Z’ suffix only) JEDEC J-STD-020C Level 3 PROTECTION Overcurrent threshold All models 12 A typ. (auto reset) |
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