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NQ03012VMA15NRN Datasheet(PDF) 11 Page - SynQor Worldwide Headquarters |
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NQ03012VMA15NRN Datasheet(HTML) 11 Page - SynQor Worldwide Headquarters |
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11 / 17 page  Product # NQ03xxxVMA15 Phone 1-888-567-9596 Doc.# 005-2NV3xxE Rev. E 6/24/04 Page 11 Performance Curves 3.0 - 3.6Vin 15A Non-Isolated Non-Isolated SIP Converter SIP Converter Figure 24: Test set-up diagram showing measurement points for Input Terminal Ripple Current (Figure 25), Input Reflected Ripple Current (Figure 26) and Output Voltage Ripple (Figure 27). Figure 25: Input Terminal Ripple Current, ic, at full rated output cur- rent and nominal input voltage with 1µH source impedance and 200µF tantalum capacitor (5A/div). See Figure 24. Figure 26: Input Reflected Ripple Current, is, through a 1 µH source inductor at nominal input voltage and rated load current (100 mA/div). See Figure 24. Figure 27: Output Voltage Ripple at nominal input voltage and rated load current (10 mV/div). Load capacitance: 10µF ceramic capacitor and 15µF tantalum capacitor. Bandwidth: 20 MHz. See Figure 24. Figure 28: Load current (5A/div) as a function of time when 0.9V con- verter attempts to turn on into a 10 m Ωshort circuit. Top trace (10ms/div) is an expansion of the on-time portion of the bottom trace. Figure 29: Load current (5A/div) as a function of time when 2.5V con- verter attempts to turn on into a 10 m Ωshort circuit. Top trace (10ms/div) is an expansion of the on-time portion of the bottom trace. 2.5Vout 1.8Vout 1.5Vout 1.2Vout 0.9Vout 2.5Vout 1.8Vout 1.5Vout 1.2Vout 0.9Vout 2.5Vout 1.8Vout 1.5Vout 1.2Vout 0.9Vout 1 µH source impedance DC/DC Converter See Fig. 23 See Fig. 22 See Fig. 24 10 µF ceramic capacitor 15 µF, 100m Ω ESR tantalum capacitor C* VSOURCE i S i C VOUT * See values for recommended external input capacitance. Inductor optional as needed. |
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