Delta Electronics S48SA manual Turn-on transient at zero load current 2 ms/div. Top

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ELECTRICAL CHARACTERISTICS CURVES

Figure5: Turn-on transient at zero load current (2 ms/div). Top

Figure 6: Output voltage response to step-change in load

Trace: Vout (2V/div); Bottom Trace: ON/OFF Control (5V/div).

current (50%-75% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF,

 

100 mΩESR tantalum capacitor and 1µF ceramic capacitor.

 

Top Trace: Vout (50mV/div), Bottom Trace: Iout (2A/div).

Figure 7: Output voltage response to step-change in load current (75%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF, 100 mΩESR tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout (50mV/div), Bottom Trace: Iout 2A/div).

Figure 8: Test set-up diagram showing measurement points for Input Reflected Ripple Current (Figure 9).

Note: Measured input reflected-ripple current with a simulated

source Inductance (LTEST) of 12 µH. Capacitor Cs offset possible battery impedance.

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DS_S48SA05006_06022006

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Contents Options Technical Specifications ParameterElectrical Characteristics Curves Typical input characteristics at room temperatureTurn-on transient at zero load current 2 ms/div. Top Scope Resistive Load Design Consideration Input Source ImpedanceFeatures Descriptions Output Voltage Adjustment Trim Circuit configuration for trim-down decrease output voltageThermal Considerations Thermal Testing SetupThermal Derating Pick and Place Location Recommended PAD Layout SMDLeaded Sn/Pb Process Recommend TEMP. Profile Lead Free SAC Process Recommend TEMP. ProfileMechanical Drawing SMDPart Numbering System Model List