CM3212-02DE ON Semiconductor, CM3212-02DE Datasheet
CM3212-02DE
Specifications of CM3212-02DE
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CM3212-02DE Summary of contents
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CM3202-02 DDR VDDQ and VTT Termination Voltage Regulator Product Description The CM3202− dual−output low noise linear regulator designed to meet SSTL−2 and SSTL−3 specifications for DDR−SDRAM V supply and termination voltage V DDQ With integrated power MOSFETs the ...
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4.7 mF/10 V 220 mF VIN 2 NC CM3202 VTT 4.7 mF/ 220 mF/ 10 ...
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Table 1. PIN DESCRIPTIONS Pin(s) Name 1 VIN Input supply voltage pin. Bypass with a 220 mF capacitor to GND Not internally connected. For better heat flow, connect to GND (exposed pad). 3 VTT V regulator output pin, ...
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Table 2. ABSOLUTE MAXIMUM RATINGS Parameter VIN to GND Pin Voltages GND DDQ TT ADJSD to GND Output Current VDDQ / VTT, continuous (Note 1) VDDQ / VTT, peak VDDQ Source + VTT Source Temperature Operating ...
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Table 4. ELECTRICAL OPERATING CHARACTERISTICS Symbol Parameter General VIN Supply Voltage Range I Quiescent Current Q V ADJSD Voltage ADJSD I Shutdown Current SHDN SHDN_H ADJSD Logic High SHDN_L ADJSD Logic Low UVLO Under−Voltage Lockout T Thermal SHDN Threshold OVER ...
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TYPICAL OPERATING CHARACTERISTICS VTT vs. VDDQ 1.65 1.55 1.45 1.35 1.25 1.15 1.05 0.95 VIN = 3 0.75 1.5 1.75 2 2.25 2.5 2.75 3 3.25 ...
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TYPICAL OPERATING CHARACTERISTICS (Cont’d) VDDQ Transient Response I DDQ 0.5A/div V DDQ 0.1V/div TIME (0.2ms/div) Powering DDR Memory Double−Data−Rate (DDR) memory has provided a huge step in performance for personal computers, servers and graphic systems apparent in its ...
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The VTT power requirement is proportional to the number of data lines and the resistance of the termination resistor, but does not vary with memory size typical DDR data bus system each data line termination may momentarily consume ...
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Adjusting VDDQ Output Voltage The CM3202−02 internal bandgap reference is set at 1.25 V. The V and R2 DDQ ADJ R2 where V = 1.25 V. The recommended divider value is R ADJ R2 ...
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PCB Layout Considerations The CM3202−02 has a heat spreader (exposed pad) attached to the bottom of the WDFN8 package in order for the heat to be transferred more easily from the package to the PCB. The heat spreader is a ...
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... 0.05 C NOTE 3 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81− ...