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www.ti.com Performance Characteristics
Conditions: Input Voltage = 48VDC Output Current = 30A
Conditions: Input Voltage = 38VDC Output Current = 25A
Bandwidth Limit = 25 MHz Trace 1: Output Voltage Volts/div
Trace 1: Q1 Drain Voltage volts/Div = 20V Horizontal
= 50 mV Horizontal Resolution = 2 µs/div
Resolution = 1 µs/div
Figure 20. Output Ripple Figure 21. Drain Voltage
Conditions: Input Voltage = 78VDC Trace 1: Q1 Drain
Conditions: Input Voltage = 48VDC Output Current = 5A
Voltage Volts/Div = 20V Horizontal Resolution = 1 µs/div
Trace 3: (gate) Synchronous Rectifier, Q3/Q4 Volts/Div = 2V
Trace 2: (gate) Synchronous Rectifier, Q5/Q6 Volts/Div = 2V
Horizontal Resolution = 1 µs/div
Figure 22. Drain Voltage Figure 23. Gate Voltages
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SNVA400B–August 2009–Revised May 2013 AN-1976 LM5027 Evaluation Board
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