AME AME9172M n General Description The AME9172M is a voltage regulator which could convert the input voltage ranging from 1.2V to 3.0V to an output voltage that user settled. The regulator can provide 2A sourcing or sinking current. The AME9172M used in conjunction with series termination resistors, provides an excellent voltage source for active termination schemes of high speed transmission lines as those seen in high speed memory buses and distributed backplane designs. The AME9172M maintains stable, only requires 10µF (or 10µFx2) of ceramic output capacitance. Bus Termination Regulator n Applications l DDR Memory Termination Supply l Active Termination Buses l Desktop PC l Supply Splitters l Set Top Box/IPC The voltage output of the regulator can be used as a termination voltage for DDR SDRAM. Current limits in both sourcing and sinking mode, plus on-chip thermal shutdown make the circuit tolerant of the output fault conditions. n Features l Support All DDR2 (0.9VTT) DDR3(0.75VTT) and DDR3L (0.675) Requirements l Capable of Sourcing and Sinking 2A Current l Current-limiting Protection l Thermal Protection l Integrated Power MOSFETs l Generates Termination Voltages for SSTL-2 l High Accuracy Output Voltage at Full-Load l Adjustable VOUT by External Resistors l Minimum External Components l Shutdown for Standby or Suspend Mode Operation with High-impedance Output l All AME’ s Lead Free Products Meet RoHS Standards Rev.C.01 1 AME Bus Termination Regulator AME9172M n Function Block Diagram VCNTL IN Thermal Sensor + - OUT Thermal & Over Current Protection Circuit VCNTL REFEN + GND n Application Circuit DDR_1.5V C1 0.1µF C2 4.7µF 1 IN NC 8 2 GND NC 7 VCNTL 6 NC 5 3 REFEN 4 OUT R2 100K 2 C3 20pF GND_PAD R1 100K VCC_3.3V/5V DDR_VTT 0.75V/2A C4 4.7µF C5 10µF Rev.C.01 AME AME9172M Bus Termination Regulator n Pin Configuration SOP-8/PP Top View 8 7 6 5 AME9172M-AZA 1. IN 2. GND 3. REFEN 4. OUT AME9172M 5. NC 6. VCNTL 7. NC 8. NC 1 2 3 4 Die Attach: Conductive Epoxy Note: The area enclosed by dashed line represents Exposed Pad and connect to GND. n Pin Description Pin Number Pin name 1 IN 2 GND 3 REFEN 4 OUT 5 NC 6 VCNTL 7 NC No internal connection 8 NC No internal connection Rev.C.01 Pin Description Power Input Ground Input voltage reference & chip enable Output Voltage No internal connection Driving Voltage 3 AME Bus Termination Regulator AME9172M n Ordering Information AME9172M - x x x Number of Pins Package Type Pin Configuration Pin Configuration A (SOP-8/PP) 1. IN 2. GND 3. REFEN 4. OUT 5. NC 6. VCNTL 7. NC 8. NC PackageType Z : SOP/PP Number of Pins A: 8 n Available Options Part Number Marking Output Voltage Package Operating Ambient Temperature Range AME9172M-AZA A9172M AOyMXX N/A SOP-8/PP -40oC to +85oC Note: 1. The first 2 places represent product code. It is assigned by AME such as AO. 2. y is year code and is the last number of a year. Such as the year code of 2008 is 8. 3. A bar on top of first letter represents Green Part such as A9172M. 4. The last 3 places MXX represent Marking Code. It contains M as date code in "month", XX as LN code and that is for AME internal use only. Please refer to date code rule section for detail information. 5. Please consult AME sales office or authorized Rep./Distributor for the availability of output voltage and package type. 4 Rev.C.01 AME AME9172M Bus Termination Regulator n Absolute Maximum Ratings Parameter Input Voltage. VIN to GND Symbol Maximum Unit VIN 6 V B* ESD Classification Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device. * HBM B: 2000V~3999V n Recommended Operating Conditions Parameter Symbol Rating Unit VIN ( 1.5 to 2.5 ) ± 3% V VCNTL ( 3.3 or 5 ) ± 5% V Output Current of VOUT Pin * *IOUT -2 to 2 A Junction Temperature Range TJ -40 to +150 o Storage Temperature Range TSTG -65 to +150 o Ambient Temperature Range TA -40 to +85 o Supply Voltage to VIN Supply Voltage to VCNTL C C C * The symbol "+" means the VOUT sources current to load; the symbol "-" means the VOUT sinks current to GND Rev.C.01 5 AME Bus Termination Regulator AME9172M n Thermal Characteristics Parameter Package Die Attach Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Symbol Maximum θ JC 19 Unit o SOP-8/PP Internal Power Dissipation Solder Iron (10Sec)** Conductive Epoxy θJA 84 PD 1450 350 C/W mW o C *Measure θJC on backside center of Exposed Pad. ** MIL-STD-202G 210F 6 Rev.C.01 AME AME9172M Bus Termination Regulator n Electrical Specifications Limits in standard typeface are for TA = 25OC, unless otherwise specified: DDR3 => VIN = 1.5V, VCNTL = 3.3V, VREFEN = 0.5V IN Parameter Output Offset Voltage Test Condition Symbol VOS Load Regulation (DDR 2 / 3) VLOAD Operating Current of VCNTL ICNTL Min Typ IOUT = 0A (Note 1) -20 0 20 IL = 0 to 2A -20 0 20 IL = 0 to -2A -20 0 20 0.5 1.5 mA 4 A No Load Max Units mV mV Short Circuit Protection DDR 2 / 3 Current Limit ILIMIT 2.0 Over Temperature Protection Thermal Shutdown Temperature TSD Guaranteed by design VIH Enable V Shutdown POR Threshold VCNTL_TH POR Hysteresis VCNTL_HYS Short Circuit (Note 2) Shutdown Current of VCNTL 170 o Thermal Shutdown Hysteresis Shutdown Threshold VCNTL= 3.3V or 5V 30 0.5 0.2 Rising Level 2.7 2.9 0.2 ISC_VIN Sinking ISC_GND Sourcing ICNTL_SD VREFEN =0V, IOUT=0V (Fig 3) C 50 V V V 1.5 A 1 50 90 µA Note1: VOS offset is the voltage measurement defined as VOUT subtracted from VREFEN . Note2: When testing short-circuit, VOUT must be lower than 0.4V. Rev.C.01 7 AME Bus Termination Regulator AME9172M n Test Circuit 3.3V/5V 1.5V VCNTL IN VOUT 0.75V REFEN OUT GND IL COUT Fig 2: Output Voltage Tolerance, ∆VOUT 3.3V/5V A VCNTL 1.5V IN VOUT 0.75V REFEN 0.75V OUT 0V 0.2V GND RL COUT RL and C OUT Time deleay Fig 3: Current in Shutdown Mode, ISHDN 8 Rev.C.01 AME AME9172M Bus Termination Regulator n Test Circuit 3.3V/5V 1.5V VCNTL IN VOUT 0.75V REFEN OUT A GND IL COUT Fig 4: Current Limit for High Side, ICLHIGH Power Supply with Current Limit 3.3V/5V VCNTL 0.75V REFEN GND 1.5V IN A IL VOUT OUT COUT Fig 5: Current Limit for Low Side, ICLLOW Rev.C.01 9 AME Bus Termination Regulator AME9172M n Characterization Curve (For reference only) Enable On From VREF VIN=1.4V, VCNTL=5.0V VREF = 0.5VIN, IOUT = 1A VIN=1.4V, VCNTL=5.0V VREF = 0.5VIN, IOUT = 1A Ch1= VIN , Ch2= VREF Ch3= VOUT , Ch4= IOUT Ch1= VIN , Ch2= VREF Ch3= VOUT , Ch4= IOUT Dynamic Load 10 Enable Off From VREF Dynamic Load Frequency=2.5KHZ, VIN=1.4V IOUT = 0.1A~1.8A and 1.8A~0.1A VCNTL=5.0V, Source Frequency=2.5KHZ, VIN=1.8V IOUT = 0.1A~1.8A and 1.8A~0.1A VCNTL=5.0V, Source Ch1= VIN , Ch2= VCNTL Ch3= VOUT , Ch4= IOUT Ch1= VIN , Ch2= VCNTL Ch3= VOUT , Ch4= IOUT Rev.C.01 AME AME9172M Bus Termination Regulator n Characterization Curve (For reference only) Dynamic Load Dynamic Load Frequency=2.5KHZ, VIN=1.4V IOUT = 0.1A~1.8A and 1.8A~0.1A VCNTL=5.0V, Sink Frequency=2.5KHZ, VIN=1.8V IOUT = 0.1A~1.8A and 1.8A~0.1A VCNTL=5.0V, Sink Ch1= VIN , Ch2= VCNTL Ch3= VOUT , Ch4= IOUT Ch1= VIN , Ch2= VCNTL Ch3= VOUT , Ch4= IOUT Output Voltage vs Temperature Output Voltage vs Temperature 0.76 0.92 Sink,V CNTL=3.3V 0.75 Output Voltage(V) Output Voltage(V) 0.91 0.90 Sink,VCNTL=5.0V Source,V CNTL =3.3V 0.89 0.88 Source,VCNTL=5.0V 0.87 Sink,VCNTL=3.3V 0.74 Source,V CNTL=5.0V 0.73 Source,VCNTL=3.3V 0.72 0.71 0.86 0.85 -50 VIN = 1.5V VIN = 1.8V 0.70 -25 0 +25 +50 +75 o Temperature ( C) Rev.C.01 Sink,V CNTL =5.0V +100 +125 -50 -25 0 +25 +50 +75 +100 +125 Temperature (o C) 11 AME Bus Termination Regulator AME9172M n Characterization Curve(For reference only) Source Current Limit vs Temperature Sink Current Limit vs Temperature 3.50 2.40 V IN=2.55V V IN=2.55V 2.35 Sink Current Limit (A) Source Current Limit (A) VIN=1.8V 3.00 2.50 2.00 V IN=1.2V V IN=1.5V 1.50 1.00 0.50 0.00 -50 V CNTL=5.0V -25 0 25 50 75 100 2.30 2.25 2.20 VIN=1.2V 2.15 2.10 V IN=1.5V 2.05 2.00 -50 125 VIN =1.8V V CNTL=5.0V -25 0 25 Output Ripple vs Temperature 20 18 16 16 14 TA=25O C 12 TA=-40 OC 10 8 O 6 TA=125 C 4 14 12 -1.5 -1.0 -0.5 0 0.5 1.0 6 1.5 0 -2.0 2.0 V IN = 1.5V -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 IOUT (A) Output Voltage vs Output Current 0.80 0.95 O T A=-40 C Output Voltage (V) Output Voltage (V) TA=-40O C 8 2 1.00 0.90 T A=125OC 0.85 O TA =25 C 0.80 O -1.5 -1.0 TA=-40 C 0.75 O TA=125 C O TA=25 C 0.70 DDR3 V CNTL = 5V DDR2 VCNTL = 5V -0.5 0 0.5 Output Current (A) 12 TA=25O C 10 Output Voltage vs Output Current 0.70 -2.0 TA=125 OC 125 4 V IN = 1.8V IOUT (A) 0.75 100 Output Ripple vs Temperature 18 0 -2.0 75 Temperature (oC) 20 2 50 Temperature ( C) Output Ripple(mV) Output Ripple(mV) o 1.0 1.5 2.0 0.65 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 Output Current (A) Rev.C.01 AME AME9172M Bus Termination Regulator n Date Code Rule Month Code 1: January 7: July 2: February 8: August 3: March 9: September 4: April A: October 5: May B: November 6: June C: December n Tape and Reel Dimension SOP-8/PP P PIN 1 W AME AME Carrier Tape, Number of Components Per Reel and Reel Size Rev.C.01 Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size SOP-8/PP 12.0±0.1 mm 4.0±0.1 mm 2500pcs 330±1 mm 13 AME Bus Termination Regulator AME9172M n Package Dimension SOP-8/PP TOP VIEW SIDE VIEW D1 θ E1 E2 E L1 C PIN 1 D A A2 b e A1 FRONT VIEW SYMBOLS MILLIMETERS MIN MAX MIN MAX A 1.350 1.750 0.053 0.069 A1 0.000 0.150 0.000 0.006 A2 1.350 1.600 0.053 0.063 C 0.100 0.250 0.004 0.010 E 3.750 4.150 0.148 0.163 E1 5.700 6.300 0.224 0.248 L1 0.300 1.270 0.012 0.050 b 0.310 0.510 0.012 0.020 D 4.720 5.120 0.186 0.202 1.270 BSC e 14 INCHES o 0.050 BSC o o o θ E2 2.150 2.513 0.085 0.099 D1 2.150 3.402 0.085 0.134 0 8 0 8 Rev.C.01 www.ame.com.tw E-Mail: [email protected] Life Support Policy: These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of AME, Inc. AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. AME, Inc. , April 2011 Document: 1299-DS9172M-C.01 Corporate Headquarter AME, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan. Tel: 886 2 2627-8687 Fax: 886 2 2659-2989