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DQ63318QGL08NRT Datasheet(PDF) 8 Page - SynQor Worldwide Headquarters |
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DQ63318QGL08NRT Datasheet(HTML) 8 Page - SynQor Worldwide Headquarters |
8 / 14 page Product # DQ63318QGL08 Phone 1-888-567-9596 Doc.# 005-2DQ638D Rev. B 10/7/03 Page 8 Performance Curves 48Vin 3.3/1.8Vout 77W Quarter Quarter Brick Dual Brick Dual Figure 23: Load current for 1.8V output (20A/div) as a function of time when the converter attempts to turn on into a 10 m Ω short circuit. Bottom trace is an expansion of the on-time portion of the top trace. Figure 24: Load current for 3.3V output (20A/div) as a function of time when the converter attempts to turn on into a 10 m Ω short circuit. Bottom trace is an expansion of the on-time portion of the top trace. Figure 19: Input Reflected Ripple Current, is, through a 10 µH source inductor at nominal input voltage and rated load current (5 mA/div). 1.8V and 3.3V outputs at full rated load current. (see Fig. 17) Figure 20: Output Voltage Ripple at nominal input voltage and rated load current on both outputs (20 mV/div). Load capacitance: 1µF ceramic & 15µF tantalum. Bandwidth: 20 MHz. (see Fig. 17) 0.0 0.5 1.0 1.5 2.0 2.5 0 5 10 15 20 Load Current (A) 35 V 48 V 75 V Figure 21: Output voltage vs. load current showing typical current limit curves and converter shutdown points for the 1.8V output. 3.3V load is at 0A. 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 5 10 15 20 Load Current (A) 35 V 48 V 75 V Figure 22: Output voltage vs. load current showing typical current limit curves and converter shutdown points for the 3.3V output. 1.8V load is at 0A. 1.8Vout 3.3Vout |
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