UNISONIC TECHNOLOGIES CO., LTD UR6517 Preliminary LINEAR INTEGRATED CIRCUIT 1.8A DDR BUS TERMINATION REGULATOR DESCRIPTION The UR6517 is a linear regulator providing up to 1.8A transient current sourcing and sinking capability for DDR bus terminator applications while regulating an output voltage to within 20mV. It contains a high speed operational amplifier which provides fast load transient response and only requires 10uF of ceramic output capacitance. The UR6517 output termination voltage tracks the reference voltage applied at VREF pin. A resistor divider connected to VIN, GND and VREF pins is used to force the reference voltage to VREF pin. Additional features include current limiting protection and thermal shutdown protection. HSOP-8 FEATURES *DDR1/ DDR2/DDR3/DDR4 termination voltage applications *Sink and Source Current DDR2 1.8A Sink/Source @ VIN=1.8V DDR3 1.5A Sink/Source @ VIN=1.5V LPDDR3 1.2A Sink/Source @ VIN=1.35V DDR4 1.2A Sink/Source @ VIN=1.2V *Low output voltage offset within 20mV *Adjustable output voltage by external resistors *Integrated power MOS devices *Suspend to RAM(STR) functionality *Current Limiting Protection *Thermal Shutdown Protection *Cost-effective and easy to use ORDERING INFORMATION Ordering Number UR6517G-SH2-R Package HSOP-8 Packing Tape Reel UR6517G-SH2-R (1)Packing Type (1) R: Tape Reel (2)Package Type (2) SH2: HSOP-8 (3)Green Package (3) G: Halogen Free and Lead Free www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 5 QW-R131-001.a UR6517 Preliminary MARKING PIN CONFIGURATIONS LINEAR INTEGRATED CIRCUIT VIN 1 8 NC GND 2 7 NC VREF 3 6 VCNTL VOUT 4 5 NC GND PIN DESCRIPTION PIN NAME VCNTL GND VIN VREF VOUT PIN TYPE I O I I O PIN DESCRIPTION Power supply pin for the internal control circuits Ground pin Power supply pin for the VOUT output Reference voltage input and active-low shutdown control pin Output voltage pin UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R131-001.a UR6517 Preliminary LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 5 QW-R131-001.a UR6517 Preliminary LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING (unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT VCNTL Control Voltage VCNTL -0.3~+6 V VIN Supply Voltage VIN -0.3~+6 V Power Dissipation (TA=25°C) PD 1.163 W Junction Temperature TJ 150 °C Storage Temperature TSTG -65 ~ +150 °C Notes: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. THERMAL DATA PARAMETER SYMBOL RATINGS UNIT Maximum Junction to Ambient (Note) θJA 86 °C/W Maximum Junction to Case θJC 15 °C/W Note: θJA is measured in the natural convection at TA = 25°C on a high effective thermal conductivity test board of JEDEC 51-7 thermal measurement standard. RECOMMENDED OPERATING CONDITIONS (Note) PARAMETER SYMBOL RATINGS VCNTL Control Voltage VCNTL 5±5% VIN Supply Voltage VIN 1V~5.5V Junction Temperature TJ -40~+125 Ambient Temperature TA -40~+85 Note: All voltage values are with respect to the network ground terminal unless otherwise noted. UNIT V V °C °C ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified) (VIN=1.8V/1.5V, VCNTL=5V, VREF=0.9V/0.75V, COUT = 10µF (Ceramic)) PARAMETER SYMBOL TEST CONDITIONS INPUT CURRENT Operation Current of VCNTL ICNTL IOUT =0A VCNTL Power On Reset VPOR VCNTL Rising Standby Current ISTB VREF<0.2V, RLOAD=180Ω OUTPUT VOLTAGE (DDR/DDR II/DDR III) Output Voltage Offset (VREF-VOUT) VOS IOUT =0A VIN=1.8V,IOUT =±1.8A VIN=1.5V,IOUT =±1.5A Load Regulation ∆VLOAD VIN=1.35V,IOUT =±1.2A VIN=1.2V,IOUT =±1.2A PROTECTION Current Limit ILIMIT VIN=1.8V/1.5V VIN=1.8V/1.5V/1.35V/1.2V Short Circuit Current ISHORT VOUT <0.2V Thermal Shutdown Temperature TSD VCNTL=3.3V~5V Thermal Shutdown Hysteresis ∆TSD VCNTL=3.3V~5V VREF Shutdown VIH Enable Shutdown Threshold Shutdown VIL UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP MAX UNIT 0.7 3.6 20 2.5 90 mA V μA -20 20 mV -20 20 mV 125 2.5 A 1.5 A 170 35 °C °C 0.4 0.15 V V 4 of 5 QW-R131-001.a UR6517 Preliminary LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATIONS CIRCUITS R1=R2=100KΩ, COUT=10μF(Ceramic)under the worst case testing condition CSS=1nF to 0.1μF, CIN=10μF(Low ESR), CCNTL=1μF R2 VREF = VIN ( V ) , VOUT track VREF R1 + R2 UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 5 QW-R131-001.a