CM8500 Champion Microelectronic Corp., CM8500 Datasheet
CM8500
Available stocks
Related parts for CM8500
CM8500 Summary of contents
Page 1
... In the default mode, when the VIN/2 pin is open, the output voltage is 50% of the VCCQ. The CM8500 can also be used to produce various user-defined voltages by forcing a voltage on the VIN/2 pin. In this case, the output voltage follows the VIN/2 pin input voltage ...
Page 2
... VIN/2 7 100K 5 AGND 9 AGND 12 AGND 11 8 AGND ORDERING INFORMATION Part Number CM8500IT CM8500IS CM8500GIT* CM8500GIS* CM8500TEVAL *Note Suffix for Pb Free Product 2004/06/01 Rev. 1.1 Description TT SD VCC2 16 6 OSCILLATOR/ RAMP GENERATOR - ERROR AMP + + RAMP AMP COMPARATOR - 20PF VFB Temperature Range -40℃ ...
Page 3
... VCCQ = 2.7V Note 3 VCCQ = 2.3V IOUT = 0 VCCQ = 2.5V Note 2 VCCQ = 2.7V Note 2 VCCQ = 0 CM8500 CM8500 CM8500 PVDD=5V VFB = 1.4V LC unconnected VFB = 1.4V LC unconnected Champion Microelectronic Corporation CM8500 ERMINATOR )….. ………………….. .40°C CM8500 Min. Typ. Max. 1.12 1.15 1.18 1.22 1.25 1.28 1.32 1.35 1.38 1.09 1.15 1.21 1.19 1.25 1.31 1.28 1.35 1.42 1.139 1.15 1.162 1.238 1 ...
Page 4
... FUNCTIONAL DESCRIPTION The CM8500 is a switching regulator that is capable of sinking and sourcing 3A of current without an external heat sink. CM8500 uses a standard surface mount PTSSOP and PSOP package with bottom metal exposed and the heat can be piped through the bottom of the device and onto the PCB. ...
Page 5
... R3 200k 102 Figure 1. CM8500 Typical Application (Schematic of CM8500TEVAL) Champion Microelectronic Corporation CM8500 ERMINATOR open:off(into shutdown mode) When external voltage applied ,pin1,2 should be open and pin2:connect to external voltage (+) pin3:connect to external voltage (-) Vtt=1/2 external voltage ...
Page 6
... Figure 2. Termination Solution for PC Main Memory (Mother Boards) Figure 3. Termination Solution for Graphic Memory (AGP Graphics) 2004/06/01 Rev. 1.1 Champion Microelectronic Corporation CM8500 ERMINATOR Page 6 ...
Page 7
... CM8500TEVAL PART LIST Item Q’ty Description Resistors 0805, 5Ω, 1/ 0805, 100Ω, 1/ 0805, 470Ω, 1/ 0805, 1KΩ, 1/ 0805, 100KΩ, 1/ Capacitors 6 1 0805, 1nF/ 16V (102 0805, 0.1µF/ 16V (104 0805, 1µF/ 16V (105) CE 10φ ...
Page 8
... Output Minimum Source DC Current OH I (DC) Output Minimum Sink DC Current OL V and V must track variations in V Notes: REF TT Peak-to-peak AC noise transmitting device must track V TT 2004/06/01 Rev. 1.1 Figure 4. CM8500EVAL PCB Layout MIN V DDQ 2.3 1. 0.04 REF V + 0.18 REF - 0 0.35 REF - 15.2 15.2 DDQ may not exceed ± ...
Page 9
... Rev. 1.1 Figure 5. SSTL_2 Terminated Output can be used and still comply with the minimum output voltages and output currents of the Champion Microelectronic Corporation CM8500 ERMINATOR Double Terminated Output ...
Page 10
... CM8500EVAL TESTING DIAGRAM TYPICAL CHARACTERISTICS 1.350 1.300 1.250 1.200 1.150 -40 -30 -20 2004/06/01 Rev. 1.1 Figure 6. CM8500EVAL Typical Testing Diagram CM8500 Temperature vs. VTT (VCC,VCCQ&VDD=3.3V) - T(℃) Temperature vs. VTT VCC, VCCQ & VDD=3.3V Champion Microelectronic Corporation CM8500 T ERMINATOR ...
Page 11
... INPUT LOAD 2.5V INPUT LOAD 3.3V INPUT LOAD 2004/06/01 Rev. 1.1 CM8500 Temperature vs. VTT (VCC,VCCQ&VDD=2.5V) - T(℃) Temperature vs. VTT VCC, VCCQ & VDD=2.5V Champion Microelectronic Corporation INPUT LOAD ...
Page 12
... PACKAGE DIMENSION 2004/06/01 Rev. 1.1 16-PIN PTSSOP (PT16) θ 16-PIN PSOP (PS16) θ Champion Microelectronic Corporation CM8500 ERMINATOR Page 12 ...
Page 13
... +886-3-567 9979 +886-3-567 9909 http://www.champion-micro.com 2004/06/01 Rev. 1.1 IMPORTANT NOTICE Sales & Marketing 11F, No. 306-3, Sec Tung Rd., Hsichih, Taipei Hsien Taiwan 221 +886-2-8692 1591 +886-2-8692 1596 Champion Microelectronic Corporation CM8500 ERMINATOR Page 13 ...