CM8562P 2A SINK & SOURCE ADJUSTABLE LINEAR BUS TERMINATOR GENERAL DESCRIPTION FEATURES The CM8562P is a low cost linear regulator designed to provide a desired output voltage or termination voltage for various applications by converting voltage supplies ranging from 1V to 6.0V. The desired output voltage could be programmable by two external voltage divider resistors. The CM8562P is capable of sourcing or sinking up to 2A of current while regulating an output VOUT voltage to within 2% (DDR-I), 3% (DDR-II) or less. The CM8562P provides low profile 8-pin SOIC package to save system space. Ideal for DDR-I and DDR-II 8-pin SOIC w/ power pad package Source and sink up to 2A, no heat sink required Integrated power MOSFETs Programmable output voltage by external resistors Output voltage could go down to 0.6V Iccq at VCCA less than 500uA Current limit protection and Short Circuit protection Thermal shutdown protection Shutdown for standby or suspend mode operation Minimum external components APPLICATIONS Mother Board IPC PCI/AGP Graphics SCSI-III Bus terminator Game/ Play Station Set Top Box PIN CONFIGURATION SOP-8 (S08) Top View 1 VIN GND 8 2 GND GND 7 3 NC VCCA 6 4 VOUT REFEN 5 2004/06/01 Rev. 0.2 Champion Microelectronic Corporation Page 1 CM8562P 2A SINK & SOURCE ADJUSTABLE LINEAR BUS TERMINATOR PIN DESCRIPTION Pin No. Symbol Description 1 VIN Input Power 3 NC No Connection 4 VOUT 5 Operating Rating Typ. Max. Min. 1 2.5/1.8 Unit 6 V Output Voltage VCCA-1.9 V REFEN Reference Voltage Input and Chip Enable VCCA-1.9 V 6 VCCA Voltage supply for internal circuits 6 V 2,7,8 GND Ground ORDERING INFORMATION Part Number Temperature Range Package CM8562PIS -40℃ to 85℃ 8-Pin SOP (S08) -40℃ to 85℃ 8-Pin SOP (S08) CM8562PGIS* *Note: G : Suffix for Pb Free Product BLOCK DIAGRAM VIN VCCA Current Limit Protection Control REFEN + VOUT - Thermal GND APPLICATION CIRCUITS Vin 1 CEin 200uF 1 C3 4.7uF 2 U1 CM8562P VIN GND GND GND 8 Vcca 7 1 2 3 Vout 6 2 REFEN 5 C4 4.7uF 1 C2 104 2 2 VOUT C1 104 1 2 Q1 R2 100K Champion Microelectronic Corporation 1 R1 Vin 2 100K 1 EN 3 4 2004/06/01 Rev. 0.2 VCCA 2 1 CEout 200uF NC Page 2 CM8562P 2A SINK & SOURCE ADJUSTABLE LINEAR BUS TERMINATOR ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings are those values beyond which the device could be permanently damaged. Storage Temperature ……................……. -65°C to 125°C VIN, VCCA Lead Temperature (Soldering, 5 sec)……………….. 260°C Thermal Resistance(θJC)………..…… 14°C/W (PSOP-8) …................................…....……………..7V Output RMS Current, Source or Sink .....…………........…...2A ELECTRICAL CHARACTERISTICS (Unless otherwise stated, these specifications apply TA=25°C; VIN=+2.5V and VCCA=+3.3V, VREFEN=1.25V) maximum ratings are stress ratings only and functional device operation is not implied. (Note 1) Symbol Parameter Test Conditions VOS Output Offset Voltage IOUT=0A (Note 2) IOP Operating Current at VIN No load, Cout=200uF ｜ΔVLOAD｜ Load Regulation (DDR I/II) CM8562P Min. -20 Dropout Voltage Max. Unit 20 mV 1 mA IL: 0A -> 2A 0.8/1.2 2/3 % IL: 0A -> -2A 0.8/1.2 2/3 % 0.3 0.4 V 0.2 0.25 V 190 230 µA 90 110 µA VCCA>VOUT+1.9V, VDROPOUT Typ. IOUT=2A VCCA>VOUT+1.9V, IOUT=1.5A ICCQ Quiescent Current at VCCA At Room Temp. ISHDN Current in Shutdown Mode VIN Input Voltage Range (Note 3) No Load 1 2.5/1.8 6 V VCCA Input Voltage Range (Note 3) RL = 10 Ohm 3.15 3.3 6 V REFEN<0.2V, RL = 10 Ohm SHORT CIRCUIT PROTECTION ILIMIT Current Limit ISC,VIN Short Current Sinking 2 5 A A ISC,GND Short Current Sourcing 2 A 3.15V<=VCCA<=6V 125 150 155 ℃ 25 30 35 ℃ 0.4 0.5 0.6 V OVER THERMAL PROTECTION THSD Thermal Shutdown Temperature Thermal Shutdown Hysteresis REFEN FUNCTION REFEN Threshold VREFEN < VIN VREFEN < VCCA – 1.9V Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions Note 2: VOS = VREFEN – VOUT Note 3: Keep VCCA >= VIN and VCCA >= VREFEN + 1.9V on operation power on and power off sequences Note 4: Guaranteed by design, not 100% test 2004/06/01 Rev. 0.2 Champion Microelectronic Corporation Page 3 CM8562P 2A SINK & SOURCE ADJUSTABLE LINEAR BUS TERMINATOR FUNCTIONAL DESCRIPTION The CM8562P is a linear regulator that is capable of sinking INPUTS and sourcing 2A of current without an external heat sink. The input voltage pins (VIN) determine the output voltages (VOUT). At CM8562P, the desired output voltage could be The CM8562P integrates power MOSFETs that are capable programmable by two external voltage divider resistors. VIN is of source and sink 2A of current while maintaining excellent suggested to connect to VDDQ of memory module for better voltage regulation. The output voltage can be regulated within tracking with memory VDDQ. 3% or less by using the external feedback. Separate voltage supply inputs have been added to fit applications with various power supplies for the databus and power buses. OTHER SUPPLY VOLTAGES VCCA provide the voltage supply to the logic section and internal error amplifiers of CM8562P. OUTPUTS The output voltage pins (VOUT) are tied to the databus, address, or clock lines via an external inductor. Output voltage is determined by the VIN. PACKAGE DIMENSION 8-Pin SOP w/ Power Pad (PS08) θ θ 2004/06/01 Rev. 0.2 Champion Microelectronic Corporation Page 4 CM8562P 2A SINK & SOURCE ADJUSTABLE LINEAR BUS TERMINATOR IMPORTANT NOTICE Champion Microelectronic Corporation (CMC) reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. A few applications using integrated circuit products may involve potential risks of death, personal injury, or severe property or environmental damage. CMC integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use of CMC products in such applications is understood to be fully at the risk of the customer. In order to minimize risks associated with the customer’s applications, the customer should provide adequate design and operating safeguards. HsinChu Headquarter Sales & Marketing 5F, No. 11, Park Avenue II, Science-Based Industrial Park, HsinChu City, Taiwan 300 11F, No. 306-3, Sec. 1, Ta Tung Rd., Hsichih, Taipei Hsien, Taiwan 221 T E L : +886-3-567 9979 F A X : +886-3-567 9909 http://www.champion-micro.com T E L : +886-2-8692 1591 F A X : +886-2-8692 1596 2004/06/01 Rev. 0.2 Champion Microelectronic Corporation Page 5