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TJ3212D Datasheet(PDF) 6 Page - HTC Korea TAEJIN Technology Co. |
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TJ3212D Datasheet(HTML) 6 Page - HTC Korea TAEJIN Technology Co. |
6 / 11 page DDR VDDQ and VTT Termination Voltage Regulator TJ3212 Mar. 2011 - Preliminary - 6 - HTC ELECTRICAL CHARACTERISTICS Parameters Symbol Condition Min. Typ. Max. Unit Supply Voltage Range VIN 3.0 3.6 V Quiescent Current IQ IDDQ = 0, ITT =0 2 mA ADJSD Voltage VADJSD (3) 1.225 1.250 1.275 V Shutdown Current ISHDN VADJSD = 3.3V (shutdown) 0.1 mA ADJSD Logic High SHDN_H (2) 2.7 V ADJSD Logic Low SHDN_L (3) 1.5 V Under-voltage Lockout UVLO Hysteresis = 100mV (3) 2.40 2.70 2.90 V Thermal SHDN Threshold TOVER (3) 150 170 °C Thermal SHDN Hysteresis THYS 50 °C VDDQ, VTT TEMPCO TEMPCO IOUT = 1A (3) 100 ppm/°C VDDQ Regulator VDDQ Output Voltage VDDQ EDF IDDQ = 100mA 2.450 2.500 2.550 V VDDQ Load Regulation VDDQ LOAD 10mA ≤ IDDQ ≤ 2A (4) 10 25 mV VDDQ Line Regulator VDDQ LINE 3.0V ≤ VIN ≤ 3.6V, IDDQ = 0.1A 5 25 mV VDDQ Dropout Voltage VDROP IDDQ = 2A (5) 500 mV ADJSD Bias Current IADJ (3) 0.8 3 uA VDDQ Current Limit IDDQ LIM 2.0 2.5 A VTT Regulator VTT Output Voltage VTT DEF ITT = 100mA 1.225 1.250 1.275 V VTT Load Regulation VTT LOAD Source, 10mA ≤ ITT ≤ 2A (4) Sink, -2A ≤ ITT ≤ 10mA (4) -30 10 -10 30 mV mV VTT Line Regulator VTT LINE 3.0V ≤ VIN ≤ 3.6V, ITT = 0.1A 5 15 mV ITT Current Limit ITT LIM Source / Sink (4) ± 2.0 ± 2.5 A VTT Shutdown Leakage Current IVTT OFF VEN_VTT = 0.4V (shutdown) 10 uA Reference Voltage VREF CREF = 0.1uF, IREF = 100uA 1.225 1.250 1.275 V Note 1. VIN = 3.3V, VDDQ = 2.50V, VTT = 1.25V (default values), CDDQ=CTT=47 F, TA = 25°C unless otherwise specified. Note 2. The ADJSD Logic High value is normally satisfied for full input voltage range by using a low leakage current (below 1 A). Schottky diode at ADJSD control pin. Note 3. Guaranteed by design. Note 4. Load and line regulation are measured at constant junction temperature by using pulse testing with a low duty cycle. For high current tests, correlation method can be used. Changes in output voltage due to heating effects must be taken into account separately. Load and line regulation values are guaranteed by design up to the maximum power dissipation. Note 5. Dropout voltage is the input to output voltage differential at which output voltage has dropped 100mV from the nominal value obtained at 3.3V input. It depends on load current and junction temperature. Guaranteed by design. |
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